Laying Manual

Polyuretub 130 Laying Manual

Polyuretub 130 Laying Manual 1 Inpal Energie 2 Polyuretub 130 Laying Manual Inpal Energie Sommaire Site safety 4 Junction kit implementation sheets 43 Unloading and Storage 9 Injected kits Network installation 12 i1 Injected junction kit 44 Network assembly 16 i2 Injected heat-shrink junction kit 48 Cutting and welding procedures 17 i3 Injected heat-shrink junction kit 51 Leak detection 18 i4 Bend insulation kit 56 Implementation of a rigid muff 22 i5 Injected end of line kit 59 Implementation of a heat-shrinkable muff 24 i6 Injected reducing kit 63 Implementation of an electroweldable muff 25 i7 Straight T-branch insultation kit 67 Implementation of a non-drilled electroweldable muff 26 i8 Hot-tapping-valves insulation kit 71 Injection of polyurethane foam 27 i10 Injected electrowelding- junction kit 76 Finalisation of a junction with conventional plugs 28 i20 Injected electrowelding-junction kit 79 Finalisation of a junction with weld-on plugs 29 Half-shell junction kits Implementation of half-shell heat-shrinkable sleeves 30 C1 Half-shell shrinkable sleeve kit 83 Implementation of half-shell heat-shrinkable muff 32 C2 Half-shell shrinkable junction kit 86 Expansion pads 34 C5 Half-shell end-of-line kit 88 Network ends 36 C7 Half-shell kit for straight T-branches kit 91 Backfilling 39 Environment and cleanliness 42 Symbols 95

Polyuretub 130 Laying Manual 3 Inpal Energie Site safety

Prevention instructions

Wear personal protective equipment suitable for each site situation.

For all work presenting risks for the hands (handling, use of hazardous products, welding, etc.)

For all work with sound levels greater than 85 dBA (pneumatic drills, driving machinery, grinding, etc.

For all work presenting risks of projection into the eyes (grinding, injection, etc.) or exposure to bright light sources (welding, etc.)

For all work conducted in polluted environments (dust, toxic gases, etc.)

4 Polyuretub 130 Laying Manual Inpal Energie Site safety

Rules of conduct Site first-aid kit – Standard content

Follow the instructions, respect signs and collective protective Matériel Quantité systems set up. Dressings: large/medium/small 20 Disinfectant wipes 3 Always have an ABC fire extinguisher nearby and know how Cream for itching/dry skin 2 to use it. Anti-mosquito wipes 2

Use equipment suitable for the jobs to be performed, in good condition Soothing/bruise wipes 2 and in compliance with applicable regulations. Antiseptic gel 1 Compresses 5 cm x 5 cm 5 Check that your qualifications and vaccinations are up to date. Compression pad 5 cm 1 Stretch bandage 3 m x 5 cm 1 Stretch bandage 3 m x 7 cm 1 Adhesive tape 1 Pair of gloves 1 Refreedol 1 Mask for mouth to mouth resuscitation 1 Safety pins 1 Survival blanket 1 Pair of scissors 1 Tweezers 1

Polyuretub 130 Laying Manual 5 Inpal Energie Site safety identification labels

6 Polyuretub 130 Laying Manual Inpal Energie

Fiche information risque chimique POLYOL

Edition May 2014 May Edition

MEASURES

SPILL

AID - DANGER FIGHTING

FIRST

FIRE

contained breathing breathing apparatus contained ACCIDENTAL -

Use respiratory protection and others protective equipments. others protective and Use respiratory protection sawdust, (e.g. withabsorbent sand, suitable material up Pick purpose binder, kieselguhr) binder, purpose - Harmful if swallowed Harmful

 general contact: skin On with and soap thoroughly Wash water. with eyes: contact On eyes affectedrunning wash under 15 minutes forleast Immediately at an open, eye consult specialist. eyelids held with water ingestion: On of rinse water, andplenty do drink not induce then mouth Immediately medical attention. seek vomiting, Hazard identification Hazard General advice: clothing. Remove contaminated If inhaled: been inhaled, remove has after vapour/aerosol to If occur difficulties and air medical seek attention. fresh Suitable extinguishing media: extinguishing Suitable media, foam, extinguishing dioxide dry water, carbon hazards: Specific oxides dioxide, carbon nitrogen monoxide, carbon hazards: Specific a self Wear

POLYOL Safety data sheet data Safety

EQUIPMENT

RELEASE

shields shields - HYGIENE STORAGE

PROTECTIVE

ELIMINATION +15 ° C+15 and ° C.+35

ACCIDENTAL PERSONAL (frame goggles) (e.g. EN 166) (e.g. (frame goggles) : protection Respiratory if ventilation protection respiratory Wear with Particlemedium filter inadequate. is particles and liquid efficiency solid for personal equipment. protection personal protection: Hand chemical resistant Suitable (EN 374) also gloves safety contact direct prolonged, with Eye protection: with glasses side Safety Body protection : protection Body ofwork closed clothing Wearing additionally tostated the required is from fromanimal foods and Segregate Segregate feeds. from Segregate oxidants. acids. informationContainers conditions: storage Further on stored tightlysealed place. in be should a dry or smoke Dodrink not eat, product. this near eating, and face before hands Wash Store between between Store or smoking. drinking clothing and Remove contaminated beforeentering equipment protective areas. eating Do not empty into drains. empty drains. into not Do the subsoil/soil discharge into not Do Dispose of fire debris and ofcontaminated fire extinguishing and debris Dispose officialregulations. with accordance in water of contaminated material as prescribed. Dispose Incinerate suitable incinerationin plant. Incinerate Polyuretub 130 Laying Manual 7 Inpal Energie

Edition May 2014 May Edition

MEASURES

SPILL

Foam, CO2 powder or dry AID - DANGER FIGHTING

FIRST

FIRE

ACCIDENTAL

Use respiratory protection and others protective equipments. others protective and Use respiratory protection earth an ..) sanf, dry( with inert material Absorb Harmful if inhaled. Harmful irritation. skin Causes eye irritation. serious Causes allergic an skin reaction.May cause of cancer. causing Suspected May cause allergy or allergy asthma symptomsMay cause or respiratory irritation.May cause May cause damage to organs through damage to organs May cause

      ifinhaled. difficulties breathing   orif exposure repeated inhaled. prolonged DANGER If inhaled: been inhaled, remove has after vapour/aerosol to If occur difficulties and air medical seek attention. fresh with and soap thoroughly Wash water. with eyes: contact On eyes affectedrunning wash under 15 minutes forleast Immediately at an open, eye consult specialist. eyelids held with water ingestion: On of rinse water, andplenty do drink not induce then mouth Immediately medical attention. seek vomiting, contact: skin On Suitable extinguishing media: media: extinguishing Suitable andin quantities. then copious if used available no other may be Water hotPrevent andvigorous. water be may isocyanate Reactionbetween firecontainers water courses,exposed cool from entering keep washings water. with spraying by followingcarbon materials: may include the products Decomposition nitrogen oxides monoxide, carbon dioxide,

Safety data sheet data Safety

ISOCYANATE

EQUIPMENT

RELEASE

HYGIENE STORAGE

PROTECTIVE

ELIMINATION +15 ° C+15 and ° C.+35

ACCIDENTAL PERSONAL Wear respiratory protection if ventilation protection respiratory Wear with Particlemedium filter inadequate. is : protection Respiratory particles and liquid efficiency solid for personal equipment. protection personal protection: Hand chemical resistant Suitable (EN 374) also gloves safety contact direct prolonged, with Eye protection: complying eyewear Safety (EN 166) standard approved an with Wearing of closed work clothing ofwork closed clothing Wearing Body protection : protection Body additionally tostated the required is near this product. this near eating, and face before hands Wash or smoking. drinking beforeentering equipment protective areas. eating informationContainers conditions: storage Further on stored tightlysealed place. in be should a dry or smoke Dodrink not eat, clothing and Remove contaminated between Store Avoid dispersal of spilt material and runoff and contact contact and runoff material dispersal spilt of and Avoid waterways, soil, drains with sewersand Waste product residues should not be disposed of via the residuesnot disposed should product be Waste in a suitable effluent but processed treatment foul sewer official inregulations. with accordance plant The generation of waste should be avoided or minimised should avoided generation of be The waste possible. wherever 8 Polyuretub 130 Laying Manual Inpal Energie Unloading and storage

POLYURETUB 130 Acceptance and inspection

POLYURETUB 130 is a rigid, or bonded, system In compliance with Inpal Energie general sales conditions: of pre-insulated pipes. The service pipe is usually made from black steel. The customer must make all necessary checks and issue all reserves during acceptance of the products. The insulation is injected polyurethane foam and the outer casing is a high density polyethylene sheath. No claim for missing parts, appearance faults or faults detectable by All components of the POLYURETUB 130 product visual inspction can be considered by Inpal Energie if the faults are not can be equipped with a leak detection system. The insulation and the outer indicated within 48 hours following delivery. casing are then remade at the welds. Consequently, it is the customer's responsibility to take all necessary action against the carrier within 48 hours following delivery. In addition, Modification of the layout and warranty these reserves must be notified to Inpal Energie within the same delay by registered letter with acknowledgement of receipt. Installation on site must comply with the drawings and instructions supplied by the network designer. The layout may not be modified without his prior approval.

No off the shelf parts can be accepted or insulated on site without the prior approval of Inpal Energie on the technique to be used.

Polyuretub 130 Laying Manual 9 Inpal Energie Unloading and storage

Unloading

The purchaser is responsible for reception and unloading of the equipment The pressure exerted on the outer casing must be less than 0.3 MPa. delivered. To avoid significant bending of ND20-ND40 pipes, it is recommended to The handling operations must be carried out by trained persons in compliance lift them in bundles, using a crossbar. The storage conditions must be with applicable regulations. sufficient to protect the components from any damage.

Storage of pipes Unloading must be carried out on a purpose-built, identified and dedicated area. Store the pipes on blocks Take the necessary precautions to avoid scratches, cuts or shocks. parallel to each other Use suitable lifting equipment. on flat ground. Handle the pipes using 2 lifting points. Sort the pipes by diameter. Handle only with textile straps at least 100 mm wide. Do not exceed a storage height of 2 m. Check that all plugs are fitted throughout the storage period.

Storage of parts

Store the parts by category and by diameter. Store the T-branches and bends with the opening pointing downwards to avoid water ingress in case of bad weather.

10 NPolyuretub 130 Laying Manual Inpal Energie Unloading and storage

Storage of junction kits

The kits must be stored in a dark place in a well ventilated room, heated The packaging must be removed just before use. in winter. In very hot weather, these products must therefore be stored under shelter. For correct conservation of the components, the kits must be stored at a temperature of between +15 °C and +35 °C. Storage of pads and small accessories

Before use, check the use-by date Storage under shelter. shown on the product packaging.

Storage of heat-shrinkable components Prolonged storage (more than one month)

Store the parts at a temperature of between +15 °C and +35 °C. Direct, In case of prolonged storage, protect the components against the prolonged exposure to sunlight may make the heat-shrinkable products weather, frost and direct sunlight. unfit for use (e.g. muffs, sleeves, etc.).

Polyuretub 130 Laying Manual 11 Inpal Energie Network laying

Digging the trench

Installation on site must Remove all objects likely to damage the casing from the bottom of the comply with the drawings and trench. instructions supplied by the network designer. The layout Pay special attention to the depth at the tappings. may not be modified without their prior approval. Minimum excavation depth

Plan excavation depths Casing Height Casing Height Casing Height and widths according to the minimum dimensions ØD ou Ød Excavation ØD ou Ød Excavation ØD ou Ød Excavation shown on the table opposite mm mm mm mm mm mm and in compliance with the designer's special 90 790 250 950 630 1330 requirements (high points, 110 810 280 980 710 1410 building entry points, vents, 125 825 315 1015 800 1500 etc.) 140 840 355 1055 900 1600 160 860 400 1100 1000 1700 Plan a work space large enough to allow correct 180 880 450 1150 1100 1800 execution of welds and 200 900 500 1200 1200 1900 junctions. 225 925 560 1260

12 Polyuretub 130 Laying Manual Inpal Energie Network laying

Anchors and concrete foundations

Make sure to install the anchors at the exact positions indicated on the layout plan provided.

Enlarge and deepen the excavation to the dimensions of the concrete block. In clayey ground, allow extra depth for drainage.

The anchor points of the outward and return networks will be positioned staggered, not opposite each other in the concrete block which will be reinforced and manufactured with a minimum content of 300 kg/m3.

If concrete is cast in the shuttering, make sure not to leave any gaps around the anchor discs. It is recommended to vibrate the concrete.

If necessary, contact a structure design office for the block dimensions and reinforcement.

Do not forget that the heating cannot be started before the concrete is completely dry.

Polyuretub 130 Laying Manual 13 Inpal Energie Network laying

Special points Recommendations before laying

Network crossing Before any operation, check that the pre-insulated components have not Respect the statutory and other applicable suffered any damage during storage. recommendations. Components which have been lying in water must be retreated.

Under main roads Installation on site must comply with the drawing and instructions Minimum cover of 0.40 m on the upper generatrix of the supplied by the network designer. The layout may not be modified without pipes. his prior approval. If this is impossible, run each pipe separately through a duct or install distribution slabs. Pipes will be laid in the trench using straps, taking care to avoid excessive bending.

Under railways Before assembling the Ask the operator for the special recommendations components, make sure there are no foreign bodies inside and do not forget to slide on the HDPE muff required to make the junction. Under waterways Consult Inpal Energie.

14 Polyuretub 130 Laying Manual Inpal Energie Network laying

" Sand bed " laying technique Installation on " blocks "

Cover the previously prepared and levelled trench bottom with a bed of Lay the pipes on blocks*, taking care to leave a minimum distance of 100 clean sand of minimum depth 100 mm. Carefully compact the sand bed mm between the pipes and the trench bottom. and level the surface so that the pipes are resting along their entire length. Clear extra space around the junction points for assembly. Assemble.

Recommendation : round brittle *The blocks can be sandbags sand, medium or large grain, 0-4 or made from polyurethane, mm. Max 8% fine grains. polystyrene or low-density PUR The internal friction angle of foam (StyroPUR foam™ block). All the sand will be about 32.5° to other blocking systems must be guarantee a friction angle of the removed before backfilling. sand/PE interface of between 20° and 22°.

The material must not contain residues of plants, humus, clay or pieces of silt. Avoid large sharp grains likely to damage the pipe and the junctions.

The material composition must allow the coefficients of friction indicated on the installation drawing, respecting the compacting (a coefficient of friction of 0.4 is generally chosen). Careful, regular compacting is required.

Polyuretub 130 Laying Manual 15 Inpal Energie Network assembly

Storage recommendations Equipment required

It is recommended that the products are stored in a dry, ventilated room. Tools Leave the sleeves in their delivery boxes and avoid exposure to sunlight, Welding kit, angle grinder rain, snow, etc. Blowtorch Electric drill, milling cutter, stapler For correct conservation of the components, the junction kits must be Extruder, welding machine stored at a temperature of between +15 °C and +35 °C. Before use, check the use-by date shown on the product packaging. Cleaning Cloth, solvent (e.g.: ethanol min. 94%) Abrasive paper (grain 40/60) Installation recommendations Wire brush Triangular scraper, Cutter The products must be installed in compliance with local safety rules. Heat-shrinkable components Special precautions must be taken during injection of polyurethane Thermometer, pressure gauge foam if the temperature is below 15 °C or above 35 °C. Rubber mallet Application roller

Humidity detection Stripping pliers Crimping pliers Cutting pliers Inpal Test or Ohmmeter

16 Polyuretub 130 Laying Manual Inpal Energie Network assembly

Cutting procedure Welding the service pipes

The cut must be perpendicular to When welding, make sure to keep the pipe axis. A bad cut tolerance < the muff far enough away. 2° is allowed in some cases. (See EN 13941) Work should always be carried out in compliance with professional The pipes can be cut to the standards. required lengths, but make sure to keep at least 20 cm insulation to If a cut is required, it must be make the junctions. perpendicular to the pipe axis. Always leave a minimum distance Only straight pipes must be cut. It is essential to contact us before of 10 cm between two welds. Align the pipes with a tolerance of ± 20 cm cutting parts. per 6 m length.

On steel pipes, strip the insulation over a length of 150 mm ± 10 mm to fill Respectez une distance de 10 cm minimum entre deux soudures. the junction correctly. Aligner les tubes avec une tolérance de ± 20 cm par longueur de 6 m.

After stopping work, plug the pipe ends with the original plastic plugs to Also make sure not to align the longitudinal weld beads of the service pipes prevent entry of foreign bodies. (EN 13941: Longitudinal or spiral beads must be separated by a distance of 10 times the wall thickness, with a minimum of 50 mm).

Important : Leave at least 15 cm between the outward and return pipes.

Polyuretub 130 Laying Manual 17 Inpal Energie Network assembly

Monitoring system > Ni-Cr wires

Type : BRANDES Standard : EN 14419 Electrical resistance : 5.7 Ω /meter Maximum wire length : 1000 m Connection : loop Boîtier : DELFIN 8000

The monitoring system is composed of:

1 red insulated nickel chromium "sensor" wire, stripped every 1.5 cm

1 green insulated copper "ground" wire

The system is based on the quantity of electricity conducted by the System composition insulation which varies according to the amount of moisture. 1 Ni-Cr wire with Teflon casing (red) 1 copper wire with Teflon casing (green)

When the moisture in the polyurethane foam increases, the electrical Ø Inner Ø Outer Ø Inner Ø Outer resistance between the service pipe and the PUR foam decreases. mm mm mm mm 0,6 1,1 0,9 1,4 Humidity can be located by measuring the resistance.

18 Polyuretub 130 Laying Manual Inpal Energie Implementation of the monitoring system > Ni-Cr wires

1) 1 2 3 4

2) 2) adhesive

1) Scrape the PUR foam off the front (all 1) Slide along the HDPE muff. 1) Position the spacers on the service pipe. Strip the wires in order to check the signs of damp PUR foam must be removed Make sure not to remove the protective film, 2) Hold the spacers in position with sellotape. connections. from the ends). which prevents accidental shrinkage of the 2) Clean the ends of the pipes or parts with a muff. cloth to remove any water, mud or sand. 2) Align the pipes and weld the two steel pipes together according to professional standards.

5 6 7 8

For each junction: After operation 5 , cut the wires to length. Cut 1) Insert the conductor wires fully into the 1) Test the connected wires by pulling them • Check that the detection wires are in good the wires to obtain an extra length of 50 mm connector (lug by hand. condition. and so that the cut ends can be inserted easily Join the red wire to the red wire and the 2) Now position the wires on the spacers • Check that the detection wires are correctly into the connectors. green wire to the green wire. Conductor length already fitted. After assembly, check the connected using an INPAL TEST meter or an The wires do not have to be stripped to be inside the connector: 10 mm electrical continuity of the wires. ohmmeter. inserted into the connectors. 2) Crimp the connectors using the crimping The wires are checked at each junction pliers. Polyuretub 130 Laying Manual 19 Inpal Energie Network assembly

Monitoring system > copper wires

Type : NORDIQUE The units are available in Standard : EN 14419 several models: Electrical resistance : 24 Ω /Km Maximum wire length : in detection and 2500 m in fault localisation. Detectors indicate the Connection : loop or single wire presence of faults on the network. The system is composed of: The locator can detect faults on the network with 1 "sensor" bare tin-plated copper wire a precise indication of the 1 "ground" bare copper wire position to allow for targeted interventions. The system is based on the quantity of electricity conducted by the insulation. Detection units : 2020 / 3000 Localisation units : 4000 Depending on the amount of moisture of the polyurethane foam, the electrical resistance between the steel service pipe and the PUR foam System composition decreases. 1 "sensor" bare tin-plated copper 1 "ground" bare copper wire

Humidity can be detected by measuring the impedance. Ø mm Ø mm 1,39 1,39

20 Polyuretub 130 Laying Manual Inpal Energie Implementation of the monitoring system > Copper

1) 1 2 3 4

2) 2) adhesive

1) Scrape the PUR foam off the front (all signs 1) Slide along the HDPE muff. 1) Position the spacers on the service pipe. For each junction: of damp PUR foam must be removed from the Make sure not to remove the protective film, 2) Hold the spacers in position with sellotape. • Check that the detection wires are in good ends). which prevents accidental shrinkage of the condition. 2) Clean the ends of the pipes or parts with a muff. • Check that the detection wires are correctly cloth to remove any water, mud or sand. 2) Align the pipes and weld the two steel pipes connected using an INPAL TEST meter or an together according to professional standards. ohmmeter. The wires are checked at each junction. 5 6 7

5 mm

5 mm For operation 4 the wires must be Cut the wires to obtain an extra length of 50 1) Insert the conductor wires of the same 1) Weld the connector using a blow torch and connected at one end. mm and so that the cut ends stick out of the colour into the connector (lug) with the ends tin wire. Test the connected conductors by connector. sticking out by about 5 mm. pulling them by hand. 2) Crimp the connectors at both ends using 2) Now position the wires on the spacers the crimping pliers. already fitted. After assembly, check the electrical continuity of the wires.

Polyuretub 130 Laying Manual 21 Inpal Energie Network assembly

1 2 1) 3 Implementation of a rigid muff 1)

2) 2)

1) Scrape the PUR foam off the front (all 1) Slide the HDPE muff onto one of the pipes, Slide the HDPE muff at the stripped area so signs of damp PUR foam must be removed pushing it along a sufficient distance. that it covers the pipe casing by 10 cm on from the ends). 2) Align the pipes and weld the two steel each end. 2) Clean the ends of the pipes or parts with a pipes together according to professional Make sure that the steel weld has cooled cloth to remove any water, mud or sand. standards. down before sliding the muff.

4 5 6 7 50+50mm 1) Abrasion 2) 50+50mm 1) 2)

1) Roughen the surfaces (muff + casing 50 mm Use a blowtorch to warm the surfaces to be Fit the heat-shrinkable sleeve on the joint so Leave 1 to 2 cm clearance to ensure correct on each side) with abrasive paper (grain 40-60) covered (muff + casing 50 mm on each end) up that the overlap lies between the 10 o'clock shrinkage. or a wire brush. to at least 65 °C. and 2 o'clock positions 1) Warm the overlapping part of the heat- 2) Clean and degrease the roughened surfaces Check the temperature on all surfaces with a Remember to remove its protective film. shrinkable sleeve slightly. with a cloth dipped in ethanol (min. 94 %). thermometer. Respect the implementation direction 2) Then warm the adhesive of the other part of using the indicator: large diameter muff the sleeve called the "adhesive patch". side, small diameter pipe side.

22 Polyuretub 130 Laying Manual Inpal Energie Network assembly

8 9 1010 11

Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and firmly. circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to smooth Remove the air bubbles with an application at the centre. complete. Finish with horizontal movements and evacuate the air bubbles. Use the same roller on the closure. Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Shrinking procedure on the closure. mm and 2 blowtorches for diameters > 450 mm. is complete when the adhesive projects out of Repeat operations 5 to 11 with the 2nd heat- If 2 blowtorches are used, use them on opposite sides of the pipe. each end of the sleeve. shrinkable sleeve.

12 Recommendations :

It is recommended to perform an airtightness test at 0.2 bar with a hand pump and pressure gauge. If this is impossible, make a visual check. It is essential to allow the materials to cool down to ambient temperature before injecting polyurethane foam. In case of doubt or if a fault is observed, remake the junction completely.

The system is correctly installed when: • The sleeves are in contact with the surfaces to be protected and have no openings. • The adhesive is visible on both ends of the sleeves. • No holes or cracks are visible

Polyuretub 130 Laying Manual 23 Inpal Energie Network assembly

1) Implementation of an 1 2 3 1) 150mm heat-shrinkable muff 1) Abrasion

150mm 2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide the heat-shrinkable muff onto one 1) Roughen the surface (150 mm on each side) of damp PUR foam must be removed from the of the pipes, pushing it along a sufficient with abrasive paper or a wire brush. ends). distance. 2) Clean and degrease the roughened surfaces 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel with a cloth dipped in ethanol (min. 94 %). cloth to remove any water, mud or sand. pipes together according to professional Do not remove the protective film, which standards. prevents accidental shrinkage of the muff.

4 5 6 7

200mm

Use a blowtorch to warm the surfaces to be Slide the heat-shrinkable muff at the stripped Shrink the ends of the heat-shrinkable muff Allow to cool before injection. covered (200 mm on each end) up to at least 65 °C. area so that it covers the pipe casing by 5 to with a blowtorch. After shrinking and return to ambient Check the temperature on all surfaces with a 10 cm on each end. Use a single blowtorch for diameters <= 450 temperature, check that the muff and the thermometer. Remember to remove the protective film mm and 2 blowtorches for diameters > 450 mm. casing are firmly bonded together. From HDPE diameters >500, the sealant before shrinking the heat-shrinkable muff. If 2 blowtorches are used, use them on opposite It is recommended to perform an strips are supplied separately. Position the sides of the pipe. airtightness test at 0.2 bar with a hand pump sleeves on the pipe using the mark made and pressure gauge. previously 24 Polyuretub 130 Laying Manual Inpal Energie Network assembly

1) Implementation of an 1 2 3

150mm electroweldable muff 1) Abrasion 1) 150mm

2) 2) 2)

4 5 6 7

1) Install the fusion grids and staple them into Shrink the ends of the heat-shrinkable muff 1) Fit the tightening straps on the muff and Allow to cool before injection. After shrinking position. with a blowtorch. connect the branch wire to one of the welding and return to ambient temperature, check that 2) Slide the heat-shrinkable muff at the stripped Use a single blowtorch for diameters <= 450 wires at each end. the muff and the casing are firmly bonded area so that it covers the pipe casing by 5 to 10 mm and 2 blowtorches for diameters > 450 mm. 2) Connect the sensor and the two remaining together. cm on each end. If 2 blowtorches are used, use them on opposite welding wires to the welding machine. It is recommended to perform an the wires with adhesive tape to stop Remember to remove the protective film. sides of the pipe. Fasten airtightness test at 0.2 bar with a hand pump Allow the muff to cool before electrowelding. them coming off. and pressure gauge. 3) Electroweld the muff. Polyuretub 130 Laying Manual 25 Inpal Energie Network assembly

1) Implementation of an 1 2 3 1) 1) non-drilled Abrasion150mm 150mm electroweldable muff 2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide the previously slit HDPE muff onto 1) Roughen the surface of the casing (150 mm of damp PUR foam must be removed from the one of the pipes, pushing it along a sufficient on each side) and the inside of the muff with ends). distance. abrasive paper or a wire brush. 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel 2) Clean and degrease the roughened surfaces cloth to remove any water, mud or sand. pipes together according to professional with a cloth dipped in ethanol (min. 94 %). standards.

1) 4 5 6 7

Position the fusion grids using the marking Slide the muff at the stripped area so that Fit the Kevlar tightening system and mount 1) Chamfer the longitudinal cut in the muff to made previously and staple them in position. it covers the pipe casing by 5 to 10 cm on the welding tools on the muff. prepare for the PE extrusion operation. each end. Weld the muff on the casing by 2) Thoroughly clean the muff surface using Make sure to go past the ends of the electrowelding in compliance with the a dry cloth to eliminate the PE residues fusion grids of the muff slit. generator procedure. produced during chamfering.

26 Polyuretub 130 Laying Manual Inpal Energie Network assembly

8 9 10

Weld the longitudinal cut of the muff using a 1) Drill a 1st hole in the muff with an electric After conducting the airtightness test and PE extrusion gun. drill, taking care not to drill the weld of the demonstrating that the junction is airtight , longitudinal cut. drill the 2nd hole in the muff. Perform an airtightness test at 0.2 bar with a hand pump and pressure gauge.

1 2 3 Injection of polyurethane foam on injected kit

A-Polyol B-Isocyanate Warning : Depending on volume Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm 1) Push the 2 vent plugs fully into the 2 injection polyurethane foam necessary, some kits and check the diameters. diameter HDPE muff injection holes. holes. require 2 boxes for each component. Check the kit use-by date. Pour component Make sure to pour in all of the mixture, using 2) As soon as the expanded mixture has Each box componsant is then identified : A into component B, mix together using the the spatula supplied. hardened, remove the plugs using the 2 tabs - 1/2 Component A spatula supplied. The mixture is ready when provided. Clean off any excess PUR foam. - 1/2 Component B it is homogeneous, with no signs of different colours.

Polyuretub 130 Laying Manual 27 Inpal Energie Network assembly

1 10102 3 Finalisation 1) of a junction with

2) standard plugs

As soon as the expanded mixture has 1) Roughen the surfaces to be covered (hole Ø 1) Press the female closure plugs by hand fully hardened, remove the plugs with 2 tabs + 50 mm on each side) with abrasive paper or into the HDPE muff injection holes. provided. Clean off any excess PUR foam. a wire brush. 2) Then knock the male closure plugs into the 2) Clean the roughened surface to remove any female closure plugs with a mallet. polyethylene or sand particles with a dry cloth (or blow off with the flame).

4 5 1)

Avant Après

1) Use a blowtorch to warm the surfaces to be 1) Finalise the bonding by warming until the The system is correctly installed when: covered (hole Ø + 50 mm on each side) up to coloured dots of the FOPS disappear. • The closure patches (FOPS) are in contact with at least 65 °C. 2) While the closure patch (FOPS) is still hot the surfaces to be protected. Check the temperature on all surfaces with a and malleable, use the application roller to • The adhesive is visible all around the closure thermometer. smooth and evacuate the air bubbles. patches. 2) Heat slightly (2 to 3 seconds) the 1st closure Repeat the operation with the 2nd closure patch (FOPS) on the side opposite the coloured patch. dots and then glue it onto the plug. 28 Polyuretub 130 Laying Manual Inpal Energie Network assembly

1 10102 3 Finalisation 1) of a junction 2) with weld-on plugs

As soon as the expanded mixture has Clean the surface to remove any polyethylene 1) Use a suitable tool to place the 1st weld- hardened, remove the plugs with 2 tabs or sand particles with a dry cloth (or blow off on closure plug in the base of the welding provided. Clean off any excess PUR foam. with the flame). machine to heat it up. 2) At the same time, push the end of the welding machine into the injection hole to heat up the edges.

4 5 6

Use a suitable tool to remove the weld-on Position the weld-on closure plug in the The system is correctly installed when 2 closure plug previously heated in the welding injection hole and press gently for about 1 homogeneous weld beads are visible around machine. minute. the entire circumference of the weld-on plugs. Do not remove the tool until the plug surface has become warm again. Repeat the operation with the 2nd weld-on closure plug. Polyuretub 130 Laying Manual 29 Inpal Energie Network assembly

1 2 3 100mm Implementation of 1) Abrasion 1) 100mm heat-shrinkable sleeve 2) 2) half-shells

1) Scrape the PUR foam off the front (all signs Align the pipes and weld the two steel pipes 1) Roughen the surface (100 mm on each side) of damp PUR foam must be removed from the together according to professional standards. with abrasive paper or a wire brush. ends). 2) Clean and degrease the roughened surfaces 2) Clean the ends of the pipes or parts with a with a cloth dipped in ethanol (min. 94 %). cloth to remove any water, mud or sand.

Film de protection 4 5 6 7

200mm L

200mm

Scotch

Measure the bare surface to be insulated then Hold the half-shells in position with sellotape. 1) Wrap with the protective film supplied to Fit the heat-shrinkable sleeve so that the cut the half-shells to the required length (L). avoid damaging the half-shells. overlap lies between the 10 o'clock and 2 Position the 2 half-shells, checking that they 2) Use a blowtorch to warm the surfaces to be o'clock positions. fill the space to be insulated perfectly. covered (200 mm on each side of the casing) Remember to remove the protective film up to at least 65 °C. Check the temperature on from the sleeve. all surfaces with a thermometer.

30 Polyuretub 130 Laying Manual Inpal Energie Network assembly

8 9 10 1110 1)

Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre shrinkage. firmly. circumference using large movements, starting and going towards the ends until shrinking is 1) Warm the overlapping part of the heat- Remove the air bubbles with an application at the centre. complete. Finish with horizontal movements shrinkable sleeve slightly. roller on the closure. Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. 2) Then warm the adhesive of the other part of mm and 2 blowtorches for diameters > 450 mm. Shrinking is complete when the adhesive the sleeve called the "adhesive patch". If 2 blowtorches are used, use them on opposite projects out of each end of the sleeve. sides of the pipe. 12

While the sleeve surface is still hot and The system is correctly installed when: malleable, use the application roller to smooth • The whole sleeve is in contact with the and evacuate the air bubbles. surfaces to be protected and has no openings. Use the same procedure on the closure. • The adhesive is visible on its ends • No holes or cracks are visible.

Polyuretub 130 Laying Manual 31 Inpal Energie Network assembly

1) Implementation of 1 2 3 1) 150mm heat-shrinkable 1) Abrasion

150mm muff half-shells 2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide along the non-drilled heat-shrinkable 1) Roughen the surface (150 mm on each side + of damp PUR foam must be removed from the muff. inside muff) with abrasive paper. ends). 2) Align the pipes and weld the two steel 2) Clean and degrease the roughened surfaces 2) Clean the ends of the pipes or parts with a pipes together according to professional with a cloth dipped in ethanol (min. 94 %). cloth to remove any water, mud or sand. standards. Do not remove the protective film, which prevents accidental shrinkage of the muff.

4 5 6 Protective film 7

Scotch

Measure the bare surface to be insulated then Hold the half-shells in position with sellotape. 1) Wrap with the protective film supplied to Slide the non-drilled muff onto the part to be cut the half-shells to the required length (L). avoid damaging the half-shells. insulated so as to cover the HDPE sleeve by 5 Position the 2 half-shells, checking that they 2) Use a blowtorch to warm the surfaces to be to 10 mm on each end. fill the space to be insulated perfectly. covered (width 200 mm on each side of the From HDPE diameters >500, the sealant HDPE end) up to at least 65 °C. strips are supplied separately. Position the Check the temperature on all surfaces with a sealant strips on the HDPE using the mark thermometer. made previously. 32 Polyuretub 130 Laying Manual Inpal Energie Network assembly

8 9

Remember to remove the protective film Shrinkage is complete when the adhesive from the heat-shrinkable muff. projects each side of the sleeve and when the Shrink the entire surface of the heat-shrinkable entire surface of the sleeve has no openings, muff with a blowtorch. holes or cracks. Use a single blowtorch for diameters <= 450 mm and 2 blowtorches for diameters > 450 mm. If 2 blowtorches are used, use them on opposite sides of the pipe.

Polyuretub 130 Laying Manual 33 Inpal Energie Installation of expansion pads

The expansion pads must be installed Number of pads depending 2 before backfilling, at the positions on the expansion 3 indicated by the network designer. 2

Their role is to provide space in the 2 3 earth, so that the pipe can expand 1 without being damaged. Pads are generally installed at bends, T-branches, expansion loops, etc. Deflection arm Expansion Expansion Expansion Two types of pad can be used: L Δ L < 30 mm Δ L 30 - 60 mm Δ L 60 - 90 mm polyurethane pads (plates) M Part Part Part polyethylene pads (strips or plates) 1,0 - 1,4 1 1 + 1 The pads are positioned on the HDPE casing and must be held in place to 1,5 - 2,4 2 2 + 1 prevent excessive penetration of sand between the casing and the pad(s). 2,5 - 3,4 3 3 + 2 3 + 2 + 1

If ties or a plastic film are used, the pads must be secured at least three 3,5 - 4,4 4 4 + 3 4 + 3 + 2 points across the width of the pad. It is also recommended to go around 4,5 - 5,4 5 5 + 4 5 + 4 + 2 at least twice to ensure that the pads are held securely in place. 5,5 - 6,4 6 6 + 4 6 + 5 + 4 6,5 - 7,4 7 7 + 5 7 + 6 + 4 If there is too much expansion for the thickness of one pad, add one or more 7,5 - 8,4 8 8 + 6 8 + 7 + 5 pad layers. 8,5 - 9,4 9 + 6 9 + 7 + 5 9,5 - 10,4 10 + 7 10 + 8 + 6 10,5 - 11,4 11 + 9 + 7

34 Polyuretub 130 Laying Manual Inpal Energie Installation of expansion pads

Dimensions of expansion pads

120 240 360 View A-A 1000 1000 1000 Casing Pads Ø Ext. L Ep. H Model mm mm mm mm 90 à 160 1000 40 120 I Model l Model ll Model lll 180 à 280 1000 40 240 II 315 à 355 1000 40 360 III 400 à 500 1000 40 480 II + II 560 1000 40 600 II + III 630 1000 40 720 III + III 710 1000 40 840 III + II + II 1000 800 1000 40 960 III + III + II 900 1000 40 1080 III + III + III (cut to desired length) 1000 1000 40 1200 III + III + II + II 1200 1000 40 1440 III + III + III + III 2000 Polyuretub 130 Laying Manual 35 Inpal Energie Network ends

Wall crossing

The wall crossing is a neoprene gasket inserted between the pipe HDPE casing and a concrete structure. Reservation Reservation Reservation Casing Casing Casing hole hole hole It is essential to use wall Dimensions de carottage pour passage de cloison crossings whenever the network Ø Ext. Ø Ø Ext. Ø Ø Ext. Ø goes through a structure (valve mm mm mm mm mm mm chamber, entering buildings, 90 112 200 225 450 500 etc.) to prevent water ingress 110 132 225 250 500 550 and guarantee protection against possible perforation caused by the 125 142 250 300 560 600 masonry structure. 140 162 315 350 630 650 160 182 355 400 710 800 They allow small expansion 180 200 400 450 movements at this building entry point.

Crossing holes are usually made using a core drill or by reservation.

The wall crossings must be positioned before welding the pipes together

36 Polyuretub 130 Laying Manual Inpal Energie Network ends

Neoprene 1 2 3 wall crossing

Drill a reservation hole in the wall, of diameter 1) Fit the neoprene wall crossing on the pipe. Slide the wall crossing. 20 to 30 mm greater than the pipe outer 2) Insert the pipe into the reservation hole up diameter. to the wall crossing. The wall crossings must be positioned The pipe must project at least 300 mm (150 before welding the pipes together. mm casing + 150 mm service pipe) inside the building.

Sealed wall crossing 1 2 3 with tightening system

1) Drill a reservation hole in the wall, of 1) Fit the sealed wall crossing on the pipe. 1) Slide the sealed wall crossing. diameter 20 to 30 mm greater than the pipe 2) Insert the pipe into the reservation hole up 2) Tighten the nuts a few turns successively outer diameter. to the wall crossing. one after the other, proceeding diagonally. 2) Place the barrel in the wall reservation hole. The pipe must project at least 300 mm (150 mm casing + 150 mm service pipe) inside the The wall crossings must be positioned building. before welding the pipes together.

Polyuretub 130 Laying Manual 37 Inpal Energie Network ends

District Heating Shrinkable End Cap (DHEC)

The district heating end cap (DHEC) is a heat-shrink part made from A DHEC must be used at each interruption in the insulated network cross-linked polyolefins. (valve chamber, entering buildings, etc.) to prevent ingress of water The DHEC was developed to seal the cut end of the polyurethane inside the insulation. foam insulation between the main pipe and the outer casing, on pre- insulated pipe networks. The DHEC must be placed on the pipe casing before welding the During installation, the DHEC shrinks onto the outer casing and the pipes together. pipe; at the same time, the adhesive melts, forming a seal between the pipe and the outer casing.

1 2 3

1) 3)

Use a blowtorch to warm the surfaces to be 1) Position the heat-shrinkable cap on the end If necessary, press on the cap to evacuate any covered (casing + pipe) up to at least 65 °C. of the pipe. air bubbles. Check the temperature on all surfaces with a 2) Shrink the cap on the "casing" part by thermometer. heating with circular movements. Shrinkage is complete when the cap surface is Allow to cool for a few minutes then shrink the completely smooth. The heat-shrinkable cap must be positioned cap on the "pipe" side by heating with circular before welding the pipes together movements.

38 Polyuretub 130 Laying Manual Inpal Energie Backfill

Hydraulic pressure tests before backfill Inspecting the junctions

Hydraulic pressure tests are essential in order to check each weld or It is prohibited to backfill a network ofP OLYURETUB 130 pipes without fitting before insulating the junctions. having at least inspected the junctions visually. Proceed as follows : To perform a 100 % inspection of the assemblies made on site, fill the pipes with cold water and subject them to a pressure of 1.3 times the Check that the PUR foam fills the entire junction. service pressure, with a minimum of 6 bars. The PUR foam must never come out of the heat-shrinkable components. If it does, the junction must be redone (incorrect implementation of the heat- Hammer the welds to check that they will not be damaged by the shrinkable sleeves). expansions generated when bringing the network to operating The closure patch must never come off the HDPE muff. If it does, refit temperature and the resulting stresses. the closure patch and/or cover the closure patch with a heat-shrinkable sleeve. Perform a general pressure test to check all welds simultaneously if the network is not too large. Inspecting the excavation

On sections with compensators, check that the network test pressure Reminder : remains less than the pressure test carried out on the compensators (24 All blocks apart from those made from polyurethane, polystyrene or low- bars for standard compensators). density PUR foam (StyroPUR foam™ block), must be removed. Check that the pipes are supported along their entire length on the sand bed The hydraulic pressure tests can be replaced by air pressure tests at a and adjust their spacing. pressure of 0.2 bar above or 0.65 bar below atmospheric pressure, Thoroughly clean the excavation bottom to remove any objects (stone, applying a suitable indicator fluid on the welds. metal, wood, etc.) or site waste that could damage the pipes.

Polyuretub 130 Laying Manual 39 Inpal Energie Backfill

Thoroughly clean the excavation Spread a uniform layer of sand at 1 4 bottom to remove any objects (stone, least 10 cm thick on top of the pipes metal, wood, etc.) or site waste that and pack carefully. could damage the pipes.

Spread a uniform layer of sand up to Purple underground warning level with the top of the pipes. 2 mesh (colour coding of heating and 5 air-conditioning networks according to EN 12613) must be laid about 20 to 50 cm above the pipes.

Backfill in successive 30 cm deep layers compacted one after the other. Pack the sand manually on the sides 3 6 and between the pipes, avoiding any impacts to the HDPE casing. Spread a uniform layer of sand up to level with the top of the pipes.

40 Polyuretub 130 Laying Manual Inpal Energie Backfill

Sand

The junctions must be protected against the weather if the trench is not backfilled within 48 hours.

The sand to be used must have sufficient support capacity and the mechanical and hydraulic properties required in order to comply with the design base.

Recommendation: round brittle sand, medium or large grain, 0-4 mm. Max. 8 % fine grains.

The internal friction angle of the sand will be about 32.5° to guarantee a friction angle of the sand/PE interface of between 20° and 22°.

The material must not contain plant residue, humus, or clay or pieces of silt. Avoid large sharp grains likely to damage the pipe and the junctions.

Polyuretub 130 Laying Manual 41 Inpal Energie Environment and cleanliness

Wood blocks

Sorting waste OIW (Ordinary Industrial Waste)

Cleanliness and waste recycling are essential for correct completion of the Pipe offcuts work site and it is therefore important to respect a few basic rules. Pallets Recommendations: Boxes It is prohibited to burn waste on the site Do not bury waste in the trenches Rubble Provide designated waste skips on the site Sort waste correctly in the specified skips. ... Do not put hazardous waste in the household waste skips Remove the full skips regularly

42 Polyuretub 130 Laying Manual Inpal Energie Implementation of junctions

Implementation sheets

Injected junction kits i8 Hot-tapping-valves insulation kit 71

i1 Injected junction kit 44 i10 Injected electrowelding- junction kit 76

i2 Injected heat-shrink junction kit 48 i20 Injected electrowelding-junction kit 79

i3 Injected heat-shrink junction kit 51 Half-shell junction kits

i4 Bend insulation kit 56 C1 Half-shell shrinkable sleeve kit 83

i5 Injected end of line kit 59 C2 Half-shell shrinkable junction kit 86

i6 Injected reducing kit 63 C5 Half-shell end-of-line kit 88

i7 Straight T-branch insulation kit 67 C7 Half-shell kit for straight T-branches kit 91

Polyuretub 130 Laying Manual 43 Inpal Energie i1 Injected junction kit

Composition of the i1 kit:

1 drilled rigid HDPE muff 2 heat-shrinkable sleeves i1

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 female closure plugs 2 male closure plugs 2 closure patches (FOPS)

44 Polyuretub 130 Laying Manual Inpal Energie Injected junction kit i1

Preparation 1 2 1) 3 4 50+50mm Abrasion 1) 2) 50+50mm 1)

2) 2)

1) Scrape the PUR foam off the front (all 1) Slide the HDPE muff onto one of the pipes, Slide the HDPE muff at the stripped area so 1) Roughen the surfaces (muff + casing 50 mm signs of damp PUR foam must be removed pushing it along a sufficient distance. that it covers the pipe casing by 10 cm on on each side) with abrasive paper (grain 40-60) or a wire brush. from the ends). 2) Align the pipes and weld the two steel each end. 2) and the roughened surfaces 2) Clean the ends of the pipes or parts with a pipes together according to professional Clean degrease Make sure that the steel weld has cooled with a cloth dipped in ethanol (min. 94 %). cloth to remove any water, mud or sand. standards. down before sliding the muff.

Installation 5 6 7 8 1)

Use a blowtorch to warm the surfaces to be Fit the heat-shrinkable sleeve on the joint so Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve covered (muff + casing 50 mm on each end) up that the overlap lies between the 10 o'clock shrinkage. firmly. to at least 65 °C. and 2 o'clock positions 1) Warm the overlapping part of the heat- Remove the air bubbles with an application Check the temperature on all surfaces with a Remember to remove its protective film. shrinkable sleeve slightly. roller on the closure. thermometer. Respect the implementation direction 2) Then warm the adhesive of the other part of using the indicator: large diameter muff the sleeve called the "adhesive patch". side, small diameter pipe side.

Polyuretub 130 Laying Manual 45 Inpal Energie i1 Injected junction kit

9 1010 11 12

Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and Repeat operations 5 to 11 with the 2nd heat- circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to smooth shrinkable sleeve. at the centre. complete. Finish with horizontal movements and evacuate the air bubbles. Use the same Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Shrinking procedure on the closure. mm and 2 blowtorches for diameters > 450 mm. is complete when the adhesive projects out of If 2 blowtorches are used, use them on opposite each end of the sleeve. sides of the pipe. Injection 13 Recommendations : 14 15

The system is correctly installed when: Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm • The sleeves are in contact with the surfaces to and check the diameters. diameter HDPE muff injection holes. be protected and have no openings. Check the kit use-by date. Pour component Make sure to pour in all of the mixture, using • The adhesive is visible on both ends of the A into component B, mix together using the the spatula supplied. sleeves. spatula supplied. The mixture is ready when • No holes or cracks are visible it is homogeneous, with no signs of different colours.

46 Polyuretub 130 Laying Manual Inpal Energie Injected junction kit i1

Finalization 16 171010 18 19 1) 1) Abrasion

2) 2)

1) Push the 2 vent plugs fully into the 2 injection 1) Roughen the surfaces to be covered (hole Ø 1) Press the female closure plugs by hand fully 1) Use a blowtorch to warm the surfaces to be holes. + 50 mm on each side) with abrasive paper or into the HDPE muff injection holes. covered (hole Ø + 50 mm on each side) up to 2) As soon as the expanded mixture has a wire brush. 2) Then knock the male closure plugs into the at least 65 °C. hardened, remove the plugs using the 2 tabs 2) Clean the roughened surface to remove any female closure plugs with a mallet. Check the temperature on all surfaces with a provided. Clean off any excess PUR foam. polyethylene or sand particles with a dry cloth (or thermometer. blow off with the flame). 2) Heat slightly (2 to 3 seconds) the 1st closure patch (FOPS) on the side opposite the coloured dots and then glue it onto the plug.

20 T10he system is correctly installed when:

• The closure patches (FOPS) are in contact with the surfaces to be protected.

• The adhesive is visible all around the closure patches.

Avant Après

1) Finalise the bonding by warming until the coloured dots of the FOPS disappear. 2) While the closure patch (FOPS) is still hot and malleable, use the application roller to smooth and evacuate the air bubbles. Repeat the operation with the 2nd closure patch.

Polyuretub 130 Laying Manual 47 Inpal Energie i2 injected heat-shrink junction kit

Composition of the i2 kit: 1 drilled heat-shrinkable muff i2

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 female closure plugs 2 male closure plugs 2 closure patches (FOPS)

48 Polyuretub 130 Laying Manual Inpal Energie injected heat-shrink junction kit i2

Preparation 1 2 1) 3 4 1)

150mm 200mm 1) Abrasion

150mm 200mm 2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide the heat-shrinkable muff onto one 1) Roughen the surface (150 mm on each side) Use a blowtorch to warm the of damp PUR foam must be removed from the of the pipes, pushing it along a sufficient with abrasive paper or a wire brush. surfaces to be covered (200 mm ends). distance. 2) Clean and degrease the roughened surfaces on each end) up to at least 65 °C. 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel with a cloth dipped in ethanol (min. 94 %). Check the temperature on all surfaces with cloth to remove any water, mud or sand. pipes together according to professional Do not remove the protective film, which a thermometer. standards. prevents accidental shrinkage of the muff.

Installation 5 WARNING : 6 7 Verify the presence of the sealant strips inside the muff before shrinking.

From HDPE diameters >500, the sealant strips are supplied separately. Position the sleeves on the pipe using the mark made previously

Slide the heat-shrinkable muff at the stripped Shrink the ends of the heat-shrinkable muff Allow to cool before injection. area so that it covers the pipe casing by 5 to with a blowtorch. After shrinking and return to ambient 10 cm on each end. Use a single blowtorch for diameters <= 450 temperature, check that the muff and the Remember to remove the protective film mm and 2 blowtorches for diameters > 450 mm. casing are firmly bonded together. before shrinking the heat-shrinkable muff. If 2 blowtorches are used, use them on opposite It is recommended to perform an sides of the pipe. airtightness test at 0.2 bar with a hand pump and pressure gauge. Polyuretub 130 Laying Manual 49 Inpal Energie i2 injected heat-shrink junction kit

Injection 8 9 10 111010 1)

A-Polyol B-Isocyanate

Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm 1) Push the 2 vent plugs fully into the 2 injection 1) Roughen the surfaces to be covered (hole Ø and check the diameters. diameter HDPE muff injection holes. holes. + 50 mm on each side) with abrasive paper or Check the kit use-by date. Pour component Make sure to pour in all of the mixture, using 2) As soon as the expanded mixture has a wire brush. A into component B, mix together using the the spatula supplied. hardened, remove the plugs using the 2 tabs 2) Clean the roughened surface to remove any spatula supplied. The mixture is ready when provided. Clean off any excess PUR foam. polyethylene or sand particles with a dry cloth (or it is homogeneous, with no signs of different blow off with the flame). colours. Finalization 12 13 14 The system is correctly installed when: 1) • The closure patches (FOPS) are in contact with the surfaces to be protected.

• The adhesive is visible all around the closure 2) patches.

Avant Après

1) Press the female closure plugs by hand fully 1) Use a blowtorch to warm the surfaces to be 1) Finalise the bonding by warming until the into the HDPE muff injection holes. covered (hole Ø + 50 mm on each side) up to coloured dots of the FOPS disappear. 2) Then knock the male closure plugs into the at least 65 °C. 2) While the closure patch (FOPS) is still hot female closure plugs with a mallet. Check the temperature on all surfaces with a and malleable, use the application roller to thermometer. smooth and evacuate the air bubbles. 2) Heat slightly (2 to 3 seconds) the 1st closure Repeat the operation with the 2nd closure patch (FOPS) on the side opposite the coloured patch. dots and then glue it onto the plug. 50 Polyuretub 130 Laying Manual Inpal Energie injected heat-shrink junction kit i3

Composition of the i3 kit :

1 drilled heat-shrinkable muff 2 heat-shrinkable sleeves i3

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 female closure plugs 2 male closure plugs 2 closure patches (FOPS) 2 weld-on plugs

Polyuretub 130 Laying Manual 51 Inpal Energie i3 injected heat-shrink junction kit

Preparation 1 2 1) 3 4 1) Abrasion150mm 200mm 1) 150mm 200mm

2) 2) 2)

Installation 5 WARNING : 6 7 Verify the presence of the sealant strips inside the muff before shrinking.

From HDPE diameters >500, the sealant strips are supplied separately. Position the sleeves on the pipe using the mark made previously

52 Polyuretub 130 Laying Manual Inpal Energie injected heat-shrink junction kit i3

8 Recommendations : 9 10 11 50+50mm It is recommended to perform an Abrasion airtightness test at 0.2 bar using a hand 50+50mm pump and pressure gauge. If this is 2) impossible, make a visual check. It is 1) essential to allow the materials to cool down to ambient temperature before injecting polyurethane foam. In case of doubt or if a fault is observed, remake the junction completely.

1) Roughen the surfaces (muff + casing 50 mm Use a blowtorch to warm the surfaces to be Fit the heat-shrinkable sleeve on the joint so on each side) with abrasive paper (grain 40-60) covered (muff + casing 50 mm on each end) up that the overlap lies between the 10 o'clock or a wire brush. to at least 65 °C. and 2 o'clock positions 2) Clean and degrease the roughened surfaces Check the temperature on all surfaces with a Remember to remove its protective film. with a cloth dipped in ethanol (min. 94 %). thermometer. Respect the implementation direction using the indicator: large diameter muff side, small diameter pipe side.

12 13 14 1510 1)

Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre shrinkage. firmly. circumference using large movements, starting and going towards the ends until shrinking is 1) Warm the overlapping part of the heat- Remove the air bubbles with an application at the centre. complete. Finish with horizontal movements shrinkable sleeve slightly. roller on the closure. Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Shrinking mm and 2 blowtorches for diameters > 450 mm. 2) Then warm the adhesive of the other part of is complete when the adhesive projects out of If 2 blowtorches are used, use them on opposite the sleeve called the "adhesive patch". sides of the pipe. each end of the sleeve.

Polyuretub 130 Laying Manual 53 Inpal Energie i3 injected heat-shrink junction kit

Injection 16 17 18

A-Polyol B-Isocyanate

While the sleeve surface is still hot and Repeat operations 10 to 16 with the 2nd heat- The system is correctly installed when: Take components A and B out of the kit boxes malleable, use the application roller to smooth shrinkable sleeve. • The sleeves are in contact with the surfaces to and check the diameters. and evacuate the air bubbles. be protected and have no openings. Check the kit use-by date. Pour component Use the same procedure on the closure. • The adhesive is visible on both ends of the A into component B, mix together using the sleeves. spatula supplied. The mixture is ready when • No holes or cracks are visible it is homogeneous, with no signs of different colours. Finalization 19 20 211010 22 1)

Pour the mixture into one of the 26 mm 1) Push the 2 vent plugs fully into the 2 injection 1) Roughen the surfaces to be covered (hole Ø 1) Press the female closure plugs by hand fully diameter HDPE muff injection holes. holes. + 50 mm on each side) with abrasive paper or into the HDPE muff injection holes. Make sure to pour in all of the mixture, using 2) As soon as the expanded mixture has a wire brush. 2) Then knock the male closure plugs into the the spatula supplied. hardened, remove the plugs using the 2 tabs 2) Clean the roughened surface to remove any female closure plugs with a mallet. provided. Clean off any excess PUR foam. polyethylene or sand particles with a dry cloth (or blow off with the flame).

54 Polyuretub 130 Laying Manual Inpal Energie injected heat-shrink junction kit i3

23 24 The system is correctly installed when: 1) • The closure patches (FOPS) are in contact with the surfaces to be protected.

• The adhesive is visible all around the closure 2) patches.

Avant Après

1) Use a blowtorch to warm the surfaces to be 1) Finalise the bonding by warming until the covered (hole Ø + 50 mm on each side) up to coloured dots of the FOPS disappear. at least 65 °C. 2) While the closure patch (FOPS) is still hot Check the temperature on all surfaces with a and malleable, use the application roller to thermometer. smooth and evacuate the air bubbles. 2) Heat slightly (2 to 3 seconds) the 1st closure Repeat the operation with the 2nd closure patch (FOPS) on the side opposite the coloured patch. dots and then glue it onto the plug.

Polyuretub 130 Laying Manual 55 Inpal Energie i4 Bend insulation kit

Composition of the i4 kit:

1 drilled flexible elbow muff 1 steel bend 1 centerring i4

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 female closure plugs 2 male closure plugs 2 closure patches (FOPS)

56 Polyuretub 130 Laying Manual Inpal Energie Bend insulation kit i4

Préparation 1 2 3 4 Recommendations : Abrasion 2) 150 mm 150 Before welding, make sure to keep the muff mm far enough away. Do not remove the protective film too soon. 2) It prevents accidental shrinkage of the 1) flexible muff. 1) 1) 3) 2)

1) Slide along the flexible PE muff. 1) Weld the steel curve at the ends of the 1) Roughen the surface (150 mm on each 2) Scrape the PUR foam off the front (all signs 2 pipes. side) with abrasive paper or a wire brush. of damp PUR foam must be removed from the 2) Place the centerring in the middle of 2) Clean and degrease the roughened ends). the steel curve with an elastic and/or an surfaces with a cloth dipped in ethanol (min. 3) Clean the ends of the pipes or parts with a adhesive tape, to stop the centerring from 94 %). cloth to remove any water, mud or sand. moving while assembling the flexible PE bend. Installation 5 6 7 8 Recommendations :

Warm the flexible part of the muff slightly The heat-shrinkable ends of the flexible Smooth and evacuate the air bubbles with a and carefully slide the flexible bend onto the bend must stick well out of the ends of the roller. steel bend. casings. Pull back the 2 heat-shrinkable After shrinking and return to ambient ends of the flexible PE muff around its entire temperature, check that the muff and the casing The injection holes must be at the top circumference. are firmly bonded together. Remember to remove the protective film Shrinking is complete when the adhesive before shrinking the heat-shrinkable muff. projects out of each end of the muff.

Polyuretub 130 Laying Manual 57 Inpal Energie i4 Bend insulation kit

9 Injection 10 11 1210 1)

A-Polyol B-Isocyanate

Finalization 2) 13 14 15 The system is correctly installed when:

• The closure patches (FOPS) are in contact Avant Après with the surfaces to be protected.

• The adhesive is visible all around the closure patches. 1)

1) Press the female closure plugs by hand fully 1) Use a blowtorch to warm the surfaces to be 1) Finalise the bonding by warming until the into the HDPE muff injection holes. covered (hole Ø + 50 mm on each side) up to coloured dots of the FOPS disappear. 2) Then knock the male closure plugs into the at least 65 °C. 2) While the closure patch (FOPS) is still hot female closure plugs with a mallet. Check the temperature on all surfaces with a and malleable, use the application roller to thermometer. smooth and evacuate the air bubbles. 2) Heat slightly (2 to 3 seconds) the 1st closure Repeat the operation with the 2nd closure patch (FOPS) on the side opposite the coloured patch. dots and then glue it onto the plug. 58 Polyuretub 130 Laying Manual Inpal Energie Injected end of line kit i5

Composition of the i5 kit:

1 drilled end of line muff 1 steel cap 1 heat-shrinkable sleeve i5

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

1 vent plug 1 female closure plug 1 male closure plug 1 closure patch (FOPS) 1 weld-on plug

Polyuretub 130 Laying Manual 59 Inpal Energie i5 Injected end of line kit

1 2 20cm 3 4 Abrasion 50+50mm 1) 3) 2) 1) 1)

2) Preparation

2) Scrape the PUR foam off the front (all signs 1) Weld the steel cap. Make sure that the steel weld has cooled 1) Roughen the surface (150 mm on each of damp PUR foam must be removed from the 2) Now perform a hydraulic pressure test on down before sliding the muff. side) with abrasive paper or a wire brush. ends). the network before insulating the end of the Slide the end of line muff at the stripped area 2) Clean and degrease the roughened 3) Clean the ends of the pipes or parts with a network. so that it covers the pipe casing by . surfaces with a cloth dipped in ethanol (min. cloth to remove any water, mud or sand. 3) Draw a line on the casing 20 cm away. 20 cm The steel cap must not touch the muff. 94 %). You are recommended to insulate ends of line in dry weather. Installation 5 6 7 8 1)

Use a blowtorch to warm the surfaces to be Fit the heat-shrinkable sleeve on the joint so Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve covered up to at least 65 °C. that the overlap lies between the 10 o'clock shrinkage. firmly. Check the temperature on all surfaces with a and 2 o'clock positions 1) Warm the overlapping part of the heat- Remove the air bubbles with an application thermometer. Remember to remove its protective film. shrinkable sleeve slightly. roller on the closure. Respect the implementation direction 2) Then warm the adhesive of the other part of using the indicator: large diameter muff the sleeve called the "adhesive patch". side, small diameter pipe side.

60 Polyuretub 130 Laying Manual Inpal Energie Injected end of line kit i5

9 1010 11 12

Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and The system is correctly installed when: circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to smooth • The sleeve is in contact with the surfaces to be at the centre. complete. Finish with horizontal movements and evacuate the air bubbles. protected and have no openings. Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Use the same procedure on the closure. • The adhesive is visible on both ends of the mm and 2 blowtorches for diameters > 450 mm. sleeves. If 2 blowtorches are used, use them on opposite sides of the pipe. • No holes or cracks are visible Injection 13 Recommendations : 14 15 16 It is recommended to perform an airtightness test at 0.2 bar with a hand pump and pressure gauge. If this is impossible, make a visual check. It is essential to allow the materials to cool down to ambient temperature before injecting polyurethane foam. In case of doubt or if a fault is observed, remake the junction completely. A-Polyol B-Isocyanate

Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm 1) Push the vent plug fully into the injection and check the diameters. diameter HDPE end of line muff injection hole. Check the kit use-by date. Pour component holes. 2) As soon as the expanded mixture has A into component B, mix together using the Make sure all of the mixture is removed, hardened, remove the plug with the tab spatula supplied. The mixture is ready when using the spatula supplied. provided. it is homogeneous, with no signs of different Clean off any excess PUR foam. colours.

Polyuretub 130 Laying Manual 61 Inpal Energie i5 Injected end of line kit

Finalization 171010 18 19 20 1) 1)

2) 2)

Abrasion Avant Après

1) Roughen the surfaces to be covered (hole 1) Press the female closure plug by hand fully 1) Use a blowtorch to warm the surfaces to Finalise the bonding by warming until the Ø + 50 mm on side) with abrasive paper or a into the HDPE muff injection hole. be covered (hole Ø + 50 mm on side) up to coloured dots of the FOPS disappear wire brush. 2) Then knock the male closure plug into the at least 65 °C. Check the temperature with a While the closure patch (FOPS) is still hot and 2) Clean the roughened surface to remove any female closure plug with a mallet. thermometer. malleable, use the application roller to smooth polyethylene or sand particles with a dry cloth 2) Heat slightly (2 to 3 seconds) the closure and evacuate the air bubbles. (or blow off with the flame). patch (FOPS) on the side opposite the coloured dots and then glue it onto the plug.

The system is correctly installed when:

• The entire closure patch (FOPS) is in contact with the surfaces to be protected.

• The adhesive is visible all around the closure patch.

62 Polyuretub 130 Laying Manual Inpal Energie Injected reducing kit i6

Composition of the i6 kit:

1 drilled HDPE reduced muff 2 heat-shrinkable sleeves i6

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

1 vent plug 1 female closure plug 1 male closure plug 1 closure patch (FOPS)

Polyuretub 130 Laying Manual 63 Inpal Energie i6 Injected reducing kit

Preparation 1 2 3 4 50+50mm Abrasion 1) 1)

2) 50+50mm 2) 2) 1)

1) Scrape the PUR foam off the front (all 1) Slide the HDPE reduced muff onto the Slide the HDPE reduced muff at the stripped 1) Roughen the surfaces (muff + casing 50 mm signs of damp PUR foam must be removed smallest pipe, pushing it along a sufficient area so that it covers the pipe casing by 10 cm on each side) with abrasive paper (grain 40-60) from the ends). distance. on each end. or a wire brush. 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel Make sure that the steel weld has cooled 2) Clean and degrease the roughened surfaces cloth to remove any water, mud or sand. pipes together according to professional down before sliding the muff. with a cloth dipped in ethanol (min. 94 %). standards.

Installation 5 6 7 8 1)

Use a blowtorch to warm the surfaces to be Fit the first heat-shrinkable sleeve on the joint Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve covered (muff + casing 50 mm on each side) up so that the overlap lies between the 10 o'clock shrinkage. firmly. to at least 65 °C. and 2 o'clock positions 1) Warm the overlapping part of the heat- Remove the air bubbles with an application Check the temperature on all surfaces with a Remember to remove its protective film. shrinkable sleeve slightly. roller on the closure. thermometer. Respect the implementation direction 2) Then warm the adhesive of the other part of using the indicator: large diameter muff the sleeve called the "adhesive patch". side, small diameter pipe side.

64 Polyuretub 130 Laying Manual Inpal Energie Injected reducing kit i6

9 1010 11 12

Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and Repeat operations 5 to 11 with the 2nd heat- circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to smooth shrinkable sleeve. at the centre. complete. Finish with horizontal movements and evacuate the air bubbles. Use the same Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Shrinking procedure on the closure. mm and 2 blowtorches for diameters > 450 mm. is complete when the adhesive projects out of If 2 blowtorches are used, use them on opposite sides of the pipe. each end of the sleeve. Injection 13 Recommendations : 14 15

The system is correctly installed when: Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm • The sleeves are in contact with the surfaces to and check the diameters. diameter HDPE end of line muff injection be protected and have no openings. Check the kit use-by date. Pour component holes. • The adhesive is visible on both ends of the A into component B, mix together using the Make sure all of the mixture is removed, spatula supplied. The mixture is ready when sleeves. using the spatula supplied. • No holes or cracks are visible it is homogeneous, with no signs of different colours.

Polyuretub 130 Laying Manual 65 Inpal Energie i6 Injected reducing kit

Finalization 16 171010 18 19 1) 1)

2) 2) Abrasion

1) Push the vent plug fully into the injection 1) Roughen the surfaces to be covered (hole 1) Press the female closure plug by hand fully 1) Use a blowtorch to warm the surfaces to hole. Ø + 50 mm on side) with abrasive paper or a into the HDPE muff injection hole. be covered (hole Ø + 50 mm on side) up to 2) As soon as the expanded mixture has wire brush. 2) Then knock the male closure plug into the at least 65 °C. Check the temperature with a hardened, remove the plug with the tab 2) Clean the roughened surface to remove any female closure plug with a mallet. thermometer. provided. polyethylene or sand particles with a dry cloth 2) Heat slightly (2 to 3 seconds) the closure Clean off any excess PUR foam. (or blow off with the flame). patch (FOPS) on the side opposite the coloured dots and then glue it onto the plug.

20 The system is correctly installed when:

• The entire closure patch (FOPS) is in contact with the surfaces to be protected.

• The adhesive is visible all around the closure patch.

Avant Après

Finalise the bonding by warming until the coloured dots of the FOPS disappear While the closure patch (FOPS) is still hot and malleable, use the application roller to smooth and evacuate the air bubbles.

66 Polyuretub 130 Laying Manual Inpal Energie Straight T-branch insultation kit i7

Composition of the i7 kit:

1 T-shaped, drilled HDPE muff 2 heat-shrinkable sleeves i7

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

1 vent plug 1 female closure plug 1 male closure plug 1 closure patch (FOPS)

Polyuretub 130 Laying Manual 67 Inpal Energie i7 Straight T-branch insultation kit

Preparation Installation 1 2 3 4

1) 1)

(a) 2) (b)

2) (b)

1) Scrape the PUR foam off the front (all Slide the large heat-shrinkable sleeve (a) onto 1) Slide the T-shaped HDPE muff (b) onto Slide the T-shaped HDPE muff (b) and fit it on signs of damp PUR foam must be removed the branch pipe. the branch pipe, pushing it along a sufficient the tapping. from the 3 ends). distance. Make sure that the steel weld has cooled 2) Clean the 3 ends of the pipes or parts with 2) Align the pipes and weld the 3 steel pipes down before sliding the muff. a cloth to remove any water, mud or sand. together according to professional standards.

5 Abrasion 6 (a) 7 8

(b) 1) 2)

1) (a) 2)

1) Roughen the surfaces (muff + casing 50 mm Use a blowtorch to warm the surfaces to be 1) Slide the large heat-shrinkable sleeve (a) Continue heating starting from the centre on each side) with abrasive paper (grain 40-60) covered (muff + casing 50 mm on each side) up around the T-shaped HDPE muff (b). and going towards the ends until shrinking is or a wire brush. to at least 65 °C. Remember to remove the protective film. complete. 2) Clean and degrease the roughened surfaces Check the temperature on all surfaces with a 2) Shrink the heat-shrinkable sleeve around its Finish with horizontal movements over the with a cloth dipped in ethanol (min. 94 %). thermometer. circumference using large movements, starting at whole surface of the sleeve. the centre. Shrinking is complete when the adhesive projects out of each end of the sleeve. 68 Polyuretub 130 Laying Manual Inpal Energie Straight T-branch insultation kit i7

9 10 1) 11 12 1) 50+50mm

Abrasion

2) 2)

While the sleeve surface is still hot and 1) Roughen the surfaces (50 mm muff + 50 mm Fit the heat-shrinkable sleeve so that the Leave 1 to 2 cm clearance to ensure correct malleable, use the application roller to smooth casing) with abrasive paper (grain 40-60) or a overlap lies between the 10 o'clock and 2 shrinkage. and evacuate the air bubbles. wire brush. o'clock positions. 1) Warm the overlapping part of the heat- 2) Clean and degrease the roughened surfaces Respect the implementation direction using shrinkable sleeve slightly. with a cloth dipped in ethanol (min. 94 %). the indicator. large diameter muff side, small 2) Then warm the adhesive of the other part of diameter pipe side. the sleeve called the "adhesive patch". Remember to remove the protective film.

13 14 1510 16

Press both ends of the heat-shrinkable sleeve 1) Shrink the sleeve around its circumference Use the application roller to smooth and It is recommended to perform an firmly. using large movements, starting at the centre. evacuate the air bubbles. Use the same airtightness test at 0.2 bar using a hand Remove the air bubbles with an application Use a single blowtorch for diameters <= 450 mm procedure on the closure. pump and pressure gauge. If this is roller on the closure. and 2 blowtorches for diameters > 450 mm. Shrinking is complete when the adhesive impossible, make a visual check. It is 2) Continue heating starting from the centre projects each side of the sleeve and when the essential to allow the materials to cool down and going towards the ends with horizontal entire surface of the sleeve has no openings, to ambient temperature before injecting movements. holes or cracks. polyurethane foam.

Polyuretub 130 Laying Manual 69 Inpal Energie i7 Straight T-branch insultation kit

Injection Finalization 17 18 19 102010 1)

2) Abrasion A-Polyol B-Isocyanate

Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm 1) Push the vent plug fully into the injection 1) Roughen the surfaces to be covered (hole and check the diameters. diameter HDPE end of line muff injection hole. Ø + 50 mm on side) with abrasive paper or a Check the kit use-by date. Pour component holes. 2) As soon as the expanded mixture has wire brush. A into component B, mix together using the Make sure all of the mixture is removed, hardened, remove the plug with the tab 2) Clean the roughened surface to remove any spatula supplied. The mixture is ready when using the spatula supplied. provided. polyethylene or sand particles with a dry cloth it is homogeneous, with no signs of different Clean off any excess PUR foam. (or blow off with the flame). colours.

21 22 23 1) 2)

1) 2)

Avant Après

1) Press the female closure plug by hand fully 1) Use a blowtorch to warm the surfaces to Finalise the bonding by warming until the The system is correctly installed when: into the HDPE muff injection hole. be covered (hole Ø + 50 mm on side) up to coloured dots of the FOPS disappear 2) Then knock the male closure plug into the at least 65 °C. Check the temperature with a While the closure patch (FOPS) is still hot and • The entire closure patch (FOPS) is in contact female closure plug with a mallet. thermometer. malleable, use the application roller to smooth with the surfaces to be protected. 2) Heat slightly (2 to 3 seconds) the closure and evacuate the air bubbles. patch (FOPS) on the side opposite the • The adhesive is visible all around the closure coloured dots and then glue it onto the plug. patch. 70 Polyuretub 130 Laying Manual Inpal Energie Hot-tapping-valves insulation kit i8

Composition of the i8 kit:

1 T-shaped, rigid HDPE muff 1 HDPE straight muff section 1 HDPE elbow muff section 1 drilled HDPE reduced muff 5 heat-shrinkable sleeves 1 centerring 1 steel pipe section 1 steel bend i8

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

1 vent plug 1 female closure plug 1 male closure plug 1 closure patch (FOPS)

Polyuretub 130 Laying Manual 71 Inpal Energie i8 Hot-tapping-valves insulation kit

Preparation Installation 1 2 3 4 Abrasion (a) (b) 2)

1) (c) 1)

1) Scrape the PUR foam off the front (all 1) Perform the hot tapping operation. (See Fit the T-shaped rigid HDPE muff (c) onto the 1) Roughen the surfaces (50 mm casing + signs of damp PUR foam must be removed "Hot Tapping" procedure) main pipe. muff width) with abrasive paper (grain 40-60) from the ends). 2) Slide the reduced drilled muff (a), then the Make sure that the hot tapping has cooled or a wire brush. 2) Clean the ends of the pipes and stripped elbow muff (b) onto the branch pipe. down before sliding the muff. 2) Clean and degrease the roughened parts with a cloth to remove any water, mud surfaces with a cloth dipped in ethanol (min. or sand. 94 %).

5 6 7 8

(c)

Use a blowtorch to warm the surfaces to be Fit the large heat-shrinkable sleeve (c') around the 1) Warm the support of the overlapping part Continue heating starting from the centre covered (50 mm casing + muff width) up to at HDPE muff (c) so that the overlap lies between slightly. and going towards the ends until shrinking is least 65 °C. the 10 o'clock and 2 o'clock positions. 2) Then warm the adhesive of the other part of complete. Check the temperature on all surfaces with a Remember to remove the protective film from the the sleeve called the "adhesive patch". Finish with horizontal movements over the thermometer. sleeve whole surface of the sleeve.

72 Polyuretub 130 Laying Manual Inpal Energie Hot-tapping-valves insulation kit i8

(a) 9 10 11 12 (b) (b) (d) 2)

(d) 1) (c)

While the sleeve surface is still hot and 1) Fit the straight muff section (d) onto the Slide the rigid elbow muff (b) and fit it on the rigid Slide the reduced drilled muff (a) and fit it on the malleable, use the application roller to T-shaped HDPE muff (c). straight muff section (d). rigid elbow muff (b). smooth and evacuate the air bubbles. 2) Weld the branch pipe onto the main pipe. Shrinking is complete when the adhesive Remember to position a centerring on the projects out of each end of the sleeve. main pipe to centre the casing.

13 14 15 16 50+50mm 1) Abrasion

50+50mm 2) 2)

Fit the 4 small heat-shrinkable sleeves on 1) Roughen the surfaces (50 mm on each side) Fit the small heat-shrinkable sleeve so that Leave 1 to 2 cm clearance to ensure correct the sockets and the end of the reduced with abrasive paper (grain 40-60) or a wire the overlap lies between the 10 o'clock and 2 shrinkage. drilled muff. brush. o'clock positions. 1) Warm the overlapping part of the heat- Use the following procedure for the 4 sleeves 2) Clean the roughened surface to remove any Remember to remove its protective film. shrinkable sleeve slightly. 14 20 polyethylene or sand particles with a dry cloth Respect the implementation direction (see images to ). 2) Then warm the adhesive of the other part of (or blow off with the flame). using the indicator: large diameter muff side, small diameter pipe side. the sleeve called the "adhesive patch".

Polyuretub 130 Laying Manual 73 Inpal Energie i8 Hot-tapping-valves insulation kit

17 18 1910 20

Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and firmly. circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to smooth Remove the air bubbles with an application at the centre. complete. Finish with horizontal movements and evacuate the air bubbles. roller on the closure. Use a single blowtorch for diameters <= 450 over the whole surface of the sleeve. Use the same procedure on the closure. mm and 2 blowtorches for diameters > 450 mm. Shrinking is complete when the adhesive If 2 blowtorches are used, use them on opposite sides of the pipe. projects out of each end of the sleeve. Injection 21 22 23 24 (a)

A-Polyol B-Isocyanate

The system is correctly installed when: Recommendations : It is recommended to Take components A and B out of the kit boxes Pour the mixture into the 26 mm diameter • The sleeves are in contact with the surfaces to perform an airtightness test at 0.2 bar using a and check the diameters. HDPE reduced muff injection hole (a). be protected and have no openings. hand pump and pressure gauge. Check the kit use-by date. Pour component Make sure all of the mixture is removed, • The adhesive is visible on both ends of the If this is impossible, make a visual check. A into component B, mix together using the using the spatula supplied. sleeves. It is essential to allow the materials to cool spatula supplied. The mixture is ready when • No holes or cracks are visible. down to ambient temperature before injecting it is homogeneous, with no signs of different polyurethane foam. colours. 74 Polyuretub 130 Laying Manual Inpal Energie Hot-tapping-valves insulation kit i8

Finalization 25 261010 27 28 1) 1)

2) 2) Abrasion

1) Push the vent plug fully into the injection 1) Roughen the surfaces to be covered (hole 1) Press the female closure plugs fully into 1) Use a blowtorch to warm the surfaces to be hole. Ø + 50 mm on each side) with abrasive paper the HDPE muff injection holes. covered (hole Ø + 50 mm on each side) up to 2) As soon as the expanded mixture has or a wire brush. 2) Then knock the male closure plugs into at least 65 °C. Check the temperature with a hardened, remove the plug using the tabs 2) Clean the roughened surface to remove any the female closure plugs with a mallet. thermometer. provided. polyethylene or sand particles with a dry cloth 2) Heat slightly (2 to 3 seconds) the 1st Clean off any excess PUR foam. (or blow off with the flame). closure patch (FOPS) on the side opposite the coloured dots and then glue it onto the plug.

29 2)

Avant Après

1) Finalise the bonding by warming until the The system is correctly installed when: coloured dots of the FOPS disappear • The closure patches (FOPS) are in contact with 2) While the closure patch (FOPS) is still hot the surfaces to be protected. and malleable, use the application roller to smooth and evacuate the air bubbles. • The adhesive is visible all around the closure patche.

Polyuretub 130 Laying Manual 75 Inpal Energie i10 injected electrowelding-junction kit

Composition of the i10 kit:

1 drilled heat-shrinkable muff fusion grids i10

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 female closure plugs 2 male closure plugs 2 closure patches (FOPS)

76 Polyuretub 130 Laying Manual Inpal Energie injected electrowelding-junction kit i10

Preparation 1) Installation 1 2 3 4

150mm 1) Abrasion 1) 150mm 2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide the heat-shrinkable muff onto one 1) Roughen the surface of the casing (150 Slide the heat-shrinkable muff at the stripped of damp PUR foam must be removed from the of the pipes, pushing it along a sufficient mm on each side) and the inside of the muff area so that it covers the pipe casing by 5 to 10 ends). distance. with abrasive paper or a wire brush. cm on each end. 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel 2) Clean and degrease the roughened Remember to remove the protective film cloth to remove any water, mud or sand. pipes together according to professional surfaces with a cloth dipped in ethanol (min. from the muff. standards. 94 %).

5 6 7 8 1)

2)2)

Install the fusion grids and staple them into Shrink the two ends of the heat-shrinkable Allow the muff to cool before 1) Connect the branch wire to one of the position. muff with a blowtorch. Use a single blowtorch electrowelding. welding wires at each end. for diameters <= 450 mm and 2 blowtorches for After shrinking and cooling to ambient 2) Connect the sensor and the two remaining diameters > 450 mm. temperature, fit the tightening straps on the welding wires to the welding machine. If 2 blowtorches are used, use them on opposite heat-shrinkable muff. Fasten the wires with adhesive tape to stop sides of the pipe. them coming off. 3) Perform the electrowelding of the muff. Polyuretub 130 Laying Manual 77 Inpal Energie i10 injected electrowelding-junction kit

Injection 9 10 11 12

A-Polyol B-Isocyanate

After shrinking and return to ambient Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm 1) Push the 2 vent plugs fully into the 2 injection temperature, check that the muff and the casing and check the diameters. diameter HDPE muff injection holes. holes. are firmly bonded together. Check the kit use-by date. Pour component Make sure to pour in all of the mixture, using 2) As soon as the expanded mixture has It is recommended to perform an A into component B, mix together using the the spatula supplied. hardened, remove the plugs using the 2 tabs provided. any excess PUR foam. airtightness test at 0.2 bar using a hand spatula supplied. The mixture is ready when Clean off pump and pressure gauge. it is homogeneous, with no signs of different colours. Finalization 131010 14 15 16 1) 1)

2) 2)

Avant Après

1) Roughen the surfaces to be covered (hole Ø 1) Press the female closure plugs by hand fully 1) Use a blowtorch to warm the surfaces to be 1) Finalise the bonding by warming until the + 50 mm on each side) with abrasive paper or into the HDPE muff injection holes. covered (hole Ø + 50 mm on each side) up to coloured dots of the FOPS disappear. a wire brush. 2) Then knock the male closure plugs into the at least 65 °C. 2) While the closure patch (FOPS) is still hot 2) Clean the roughened surface to remove any female closure plugs with a mallet. Check the temperature on all surfaces with a and malleable, use the application roller to polyethylene or sand particles with a dry cloth (or thermometer. smooth and evacuate the air bubbles. blow off with the flame). 2) Heat slightly (2 to 3 seconds) the 1st closure Repeat the operation with the 2nd closure patch (FOPS) on the side opposite the coloured patch. dots and then glue it onto the plug. 78 Polyuretub 130 Laying Manual Inpal Energie Injected electrowelding-junction kit i20 Composition of the i20 kit:

1 HDPE muff to slit fusion grids i20

1 box of Polyol 1 box of Isocyanate 1 mixing spatula

2 vent plugs 2 weld-on plugs

Polyuretub 130 Laying Manual 79 Inpal Energie i20 Injected electrowelding-junction kit

Preparation 1) 1 2 3 Installation 4

1) 1) Abrasion150mm 150mm

2) 2) 2)

1) Scrape the PUR foam off the front (all signs 1) Slide the previously slit HDPE muff onto 1) Roughen the surface of the casing (150 mm Position the fusion grids using the marking of damp PUR foam must be removed from the one of the pipes, pushing it along a sufficient on each side) and the inside of the muff with made previously and staple them into position. ends). distance. abrasive paper or a wire brush. 2) Clean the ends of the pipes or parts with a 2) Align the pipes and weld the two steel 2) Clean and degrease the roughened surfaces cloth to remove any water, mud or sand. pipes together according to professional with a cloth dipped in ethanol (min. 94 %). standards.

1) 5 6 7 8

Slide the muff at the stripped area so that Fit the Kevlar tightening system and mount the 1) Chamfer the longitudinal cut in the muff to Weld the longitudinal cut of the muff using a PE it covers the pipe casing by 5 to 10 cm on welding tools on the muff. prepare for the PE extrusion operation. extrusion gun. each end. Weld the muff on the casing by electrowelding 2) Thoroughly clean the muff surface using a Make sure to go past the ends of the in compliance with the generator procedure. dry cloth to eliminate the PE residues produced fusion grids of the muff slit. during chamfering.

80 Polyuretub 130 Laying Manual Inpal Energie Injected electrowelding-junction kit i20

Injection 9 10 11 12

A-Polyol B-Isocyanate

Drill a 1st hole in the muff with an electric After conducting the airtightness test and Take components A and B out of the kit boxes Pour the mixture into one of the 26 mm drill, taking care not to drill the weld of the demonstrating that the junction is airtight , and check the diameters. diameter HDPE muff injection holes. longitudinal cut. drill the 2nd hole in the muff. Check the kit use-by date. Pour component Make sure all of the mixture is removed, Perform an airtightness test at 0.2 bar with A into component B, mix together using the using the spatula supplied. a hand pump and pressure gauge to check that spatula supplied. The mixture is ready when the junction is perfectly airtight. it is homogeneous, with no signs of different colours.

Finalization 1) 13 1410 15 16

1) Push the 2 vent plugs fully into the 2 injection Clean the surface to remove any polyethylene 1) Use a suitable tool to place the 1st weld-on Use a punch to remove the weld-on closure holes. or sand particles with a dry cloth (or blow off closure plug in the base of the welding machine plug previously heated in the welding machine. 2) As soon as the expanded mixture has with the flame). to heat it up. hardened, remove the plugs using the 2 tabs 2) At the same time, push the end of the welding provided. machine into the injection hole to heat up the Clean off any excess PUR foam. edges.

Polyuretub 130 Laying Manual 81 Inpal Energie i20 Injected electrowelding-junction kit

17 18 19

Position the weld-on closure plug in the injection Repeat operation 15 to 17 with the 2nd weld- The system is correctly installed when 2 hole and press gently for about 1 minute. on closure plug. homogeneous weld beads are visible around Do not remove the tool until the plug surface the entire circumference of the weld-on plugs. has become warm again.

82 Polyuretub 130 Laying Manual Inpal Energie Half-shell shrinkable sleeve kit C1

Composition of the C1 kit:

2 PU half-shells A protective film. C1

1 heat-shrinkable sleeve

Polyuretub 130 Laying Manual 83 Inpal Energie C1 Half-shell shrinkable sleeve kit

Preparation 1 2 3 4 Installation 1) Abrasion100mm L 1) 100mm

2) 2)

1) Scrape the PUR foam off the front (all Align the pipes and weld the two steel pipes 1) Roughen the surface (100 mm on each Measure the bare surface to be insulated then signs of damp PUR foam must be removed together according to professional standards. side) with abrasive paper or a wire brush. cut the half-shells to the required length (L). from the ends). 2) Clean and degrease the roughened Position the 2 half-shells, checking that they 2) Clean the ends of the pipes or parts with a surfaces with a cloth dipped in ethanol (min. fill the space to be insulated perfectly. cloth to remove any water, mud or sand. 94 %).

5 6 Protective film 7 8 1) 200mm

200mm 2)

Scotch

Hold the half-shells in position using sellotape. 1) Wrap with the protective film supplied to Fit the heat-shrinkable sleeve so that the Leave 1 to 2 cm clearance to ensure correct avoid damaging the half-shells. overlap lies between the 10 o'clock and 2 shrinkage. 2) Use a blowtorch to warm the surfaces to be o'clock positions. 1) Warm the overlapping part of the heat- covered (200 mm on each side) up to at least Remember to remove the protective film shrinkable sleeve slightly. 65 °C. from the sleeve. 2) Then warm the adhesive of the other part of Check the temperature on all surfaces with a the sleeve called the "adhesive patch". thermometer. 84 Polyuretub 130 Laying Manual Inpal Energie Half-shell shrinkable sleeve kit C1

9 10 1110 12

Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its Continue heating starting from the centre While the sleeve surface is still hot and firmly. circumference using large movements, starting and going towards the ends until shrinking is malleable, use the application roller to Remove the air bubbles with an application at the centre. complete. smooth and evacuate the air bubbles. roller on the closure. Use a single blowtorch for diameters <= 450 Finish with horizontal movements over the Use the same procedure on the closure. mm and 2 blowtorches for diameters > 450 mm. whole surface of the sleeve. If 2 blowtorches are used, use them on opposite sides of the pipe. Shrinking is complete when the adhesive projects out of each end of the sleeve.

The system is correctly installed when: • The whole sleeve is in contact with the surfaces to be protected and has no openings. • The adhesive is visible on its ends • No holes or cracks are visible.

Polyuretub 130 Laying Manual 85 Inpal Energie C2 Half-shell shrinkable junction kit

Composition of the C2 kit:

2 PU half-shells A protective film. C2

1 non-drilled heat-shrinkable muff

86 Polyuretub 130 Laying Manual Inpal Energie Half-shell shrinkable junction kit C2

Preparation 1 2 1) 3 4 Installation 1) 150mm L 1) Abrasion

150mm 2) 2) 2)

1) Scrape the PUR foam off the front (all 1) Slide along the non-drilled heat-shrinkable 1) Roughen the surface (150 mm on each Measure the bare surface to be insulated then signs of damp PUR foam must be removed muff. side) with abrasive paper or a wire brush. cut the half-shells to the required length (L). from the ends). 2) Align the pipes and weld the two steel 2) Clean and degrease the roughened Position the 2 half-shells, checking that they 2) Clean the ends of the pipes or parts with a pipes together according to professional surfaces with a cloth dipped in ethanol (min. fill the space to be insulated perfectly. cloth to remove any water, mud or sand. standards. 94 %).

5 6 Protective film 7 8

Scotch

Hold the half-shells in position using sellotape. 1) Wrap with the protective film supplied to Slide the non-drilled muff onto the part to be Remember to remove the protective film from Do not remove the protective film from avoid damaging the half-shells. insulated so as to cover the HDPE sleeve by 5 the heat-shrinkable muff. the heat-shrinkable muff before preheating. It 2) Use a blowtorch to warm the surfaces to 10 mm on each end. Shrink the entire surface of the heat-shrinkable prevents accidental shrinkage of the muff. to be covered (200 mm on each side of the From HDPE diameters >500, the sealant muff using a blowtorch. HDPE end) up to at least 65 °C. Check the strips are supplied separately. Shrinking is complete when the adhesive temperature on all surfaces with a thermometer. Position the sealant strips on the HDPE using projects each side of the sleeve and when the the mark made previously. entire surface of the sleeve has no openings, holes or cracks. Polyuretub 130 Laying Manual 87 Inpal Energie C5 Half-shell end of line kit

Composition of the C5 kit :

2 PU half-shells 1 steel cap C5

1 non-drilled HDPE muff 1 heat-shrinkable sleeve

88 Polyuretub 130 Laying Manual Inpal Energie Half-shell end of line kit C5

1 2 3 Installation 4 L

2) Preparation Scotch

1) Scrape the PUR foam off the front (all signs Weld the steel cap to the pipe. Measure the bare surface to be insulated then Hold the half-shells in position using sellotape. of damp PUR foam must be removed from the Now perform a hydraulic pressure test on cut the half-shells to the required length (L). ends). the network before insulating the end of the Position the 2 half-shells, checking that they 2) Clean the ends of the pipes or parts with a network. fill the space to be insulated perfectly. cloth to remove any water, mud or sand.

5 Protective film 6 7 8 Abrasion 50+50mm

2) 1)

Wrap with the protective film supplied to avoid It is recommended that the ends of line are 1) Roughen the surfaces (50 mm muff + casing Use a blowtorch to warm the surfaces to be insulated in dry weather. damaging the half-shells. 50 mm) with abrasive paper (grain 40-60) or a covered up to at least 65 °C. Slide the non-drilled end of line muff at the wire brush. stripped area so that it covers the pipe casing Check the temperature on all surfaces with a by 20 cm. 2) Clean and degrease the roughened surfaces thermometer. with a cloth dipped in ethanol (min. 94 %).

Polyuretub 130 Laying Manual 89 Inpal Energie C5 Half-shell end of line kit

9 10 11 12 1)

Fit the heat-shrinkable sleeve so that the Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve Shrink the heat-shrinkable sleeve around its overlap lies between the 10 o'clock and 2 shrinkage. firmly. circumference using large movements, starting o'clock positions. 1) Warm the overlapping part of the heat- Remove the air bubbles with an application at the centre. Depending on the diameter, use a Remember to remove its protective film. shrinkable sleeve slightly. roller on the closure. single blowtorch for diameters <= 450 mm and Respect the implementation direction 2) Then warm the adhesive of the other part of 2 blowtorches for diameters > 450 mm. using the indicator: large diameter muff the sleeve called the "adhesive patch". If 2 blowtorches are used, use them on opposite side, small diameter pipe side. sides of the pipe.

1310 14

Continue heating starting from the centre While the sleeve surface is still hot and The system is correctly installed when: and going towards the ends until shrinking is malleable, use the application roller to smooth • The whole sleeve is in contact with the complete. and evacuate the air bubbles. surfaces to be protected and has no openings. Finish with horizontal movements over the Use the same procedure on the closure. • The adhesive is visible on its ends whole surface of the sleeve. • No holes or cracks are visible.

90 Polyuretub 130 Laying Manual Inpal Energie Half-shell kit for straight T-branches C7

Composition of the C7 kit:

1 T-shaped HDPE rigid muff 4 PU half-shells C7

2 heat-shrinkable sleeves

Polyuretub 130 Laying Manual 91 Inpal Energie C7 Half-shell kit for straight T-branches

Preparation (a) Installation 1 2 3 4

1) 1)

(a) 2) (b)

2) L

1) Scrape the PUR foam off the front (all Slide the large heat-shrinkable sleeve (a) onto 1) Slide the T-shaped non-drilled HDPE muff Measure the bare surface to be insulated signs of damp PUR foam must be removed the branch pipe. (b) onto the branch pipe. then cut the half-shells to the required length from the 3 ends). 2) Align the pipes and weld the 3 steel pipes (L and l). 2) Clean the 3 ends of the pipes or parts with together according to professional standards. Position the 2 half-shells, checking that they a cloth to remove any water, mud or sand. fill the space to be insulated perfectly.

5 6 7 8 Protective film Abrasion

(a) 1) (b)

2) Scotch

Hold the half-shells in position using sellotape. Wrap with the protective film supplied to avoid Slide the non-drilled HDPE muff (b) and fit it 1) Roughen the surfaces (muff + casing 50 mm damaging the half-shells. on the branch pipe. on each side) with abrasive paper (grain 40-60) or a wire brush. 2) Clean and degrease the roughened surfaces with a cloth dipped in ethanol (min. 94 %).

92 Polyuretub 130 Laying Manual Inpal Energie Half-shell kit for straight T-branches C7

(a) 9 10 11 12

(b) 2)

1) (a)

Use a blowtorch to warm the surfaces to be 1) Slide the large heat-shrinkable sleeve (a) Continue heating starting from the centre and While the sleeve surface is still hot and covered (50 mm casing + muff width) up to at around the HDPE muff (b). going towards the ends until shrinking is complete. malleable, use the application roller to smooth least 65 °C. 2) Shrink the heat-shrinkable sleeve around its Finish with horizontal movements over the whole and evacuate the air bubbles. Check the temperature on all surfaces with a circumference using large movements, starting at surface of the sleeve. thermometer. the centre. Shrinking is complete when the adhesive projects out of each end of the sleeve.

13 1) 14 15 16 1) 50+50mm

Abrasion

2) 2)

1) Roughen the surfaces (muff + casing 50 mm Fit the heat-shrinkable sleeve so that the Leave 1 to 2 cm clearance to ensure correct Press both ends of the heat-shrinkable sleeve on each side) with abrasive paper (grain 40-60) overlap lies between the 10 o'clock and 2 o'clock shrinkage. firmly. or a wire brush. positions. 1) Warm the overlapping part of the heat- Remove the air bubbles with an application 2) Clean and degrease the roughened surfaces Remember to remove its protective film. shrinkable sleeve slightly. roller on the closure. with a cloth dipped in ethanol (min. 94 %). Respect the implementation direction 2) Then warm the adhesive of the other part of using the indicator: large diameter muff side, the sleeve called the "adhesive patch". small diameter pipe side. Polyuretub 130 Laying Manual 93 Inpal Energie C7 Half-shell kit for straight T-branches

17 1810 19

Shrink the heat-shrinkable sleeve around Continue heating starting from the centre While the sleeve surface is still hot and The system is correctly installed when: its circumference using large movements, and going towards the ends until shrinking is malleable, use the application roller to smooth • The sleeves are in contact with the surfaces starting at the centre. Use a single blowtorch complete. Finish with horizontal movements and evacuate the air bubbles. to be protected and have no openings. for diameters <= 450 mm and 2 blowtorches over the whole surface of the muff. Use the same procedure on the closure. • The adhesive is visible on its ends for diameters > 450 mm. If 2 blowtorches are Shrinking is complete when the adhesive • No holes or cracks are visible. used, use them on opposite sides of the pipe. projects out of each end of the sleeve.

94 Polyuretub 130 Laying Manual Inpal Energie Symbols

Pipe length XX metres Pre-insulated valve with geared actuators (without vent/ 1 vent/ 2 vents)

Bend 90°, 45°, xx, extension Reduction and reduced kit (i6)

Expansion compensator Straight and bent anchor (fixed point) Expansion Pads (1, 2, 3 thicknesses)

Jump T-branch and reinforced jump T-branch Wall crossing, DHEC, CCS-DHEC

Parallel T-branch and reinforced parallel T-branch Junction kit, end of line kit (i5)

Straight T-branch and reinforced straight T-branch Bend insulation kit (i4)

Pre-insulated valve (without vent/ 1 vent/ 2 vents)

Polyuretub 130 Laying Manual 95 Inpal Energie E nergie - May 2014 dition Photo Credits: Inpal nergie, Fotolia.

The expertise to optimise your energy efficiency

Inpal Energie ZAC Chapotin - 238 rue des frères Voisin - 69970 Chaponnay - France Tel. : +33 (0)4 78 69 63 20 - Fax : +33 (0)4 72 71 89 52 96 [email protected] Polyuretub 130 Laying Manual Inpal Energie