ERIKS Sealing Technology Specialist Seals for Heavy Industrial Application 2 Contents 3
Large scale sealing solutions are conceived out of understanding, admiration and respect for the application.
David McIntosh Contents Pioneer Weston 1964 - 2013 Capabilities 04
Materials 08 Elastomers 08 Standard ERIKS Compounds 18 ERIKS Compounds Physical Properties 19 Chemical Compatibility Chart 20 Applications 22
Products 30 Heavy Duty Rotary Lip Seals 30 Elastomeric Lip Seals 31 Solid Body PTFE Seals 33 GS Split 36 Metal Face Seals 37 Weston Mechanical Seals 38 Balanced Mechanical Seal 39 Non Balanced Mechanical Seal 40 Face Type Seal 42 Vulc-O-ring 43 Spring Energised Seal 44 O-ring 46 Heavy Duty Hydraulic Seal Profiles 48 Additional Products & Services 50 V-rings 50 Carbon Segment Seals 50 Lip Seals 51 Laminar Seals 51 Bellow Seals 52 Stationary Components 52 Taper Spring Seals 53 Parallel Spring Seals 53 Brochures in the Series 54 Non Balanced Mechanical Seal Kitting & Bagging 55
Type MRX All information in this documentation has been compiled with care to ensure accuracy. Despite this we can bear no liability for error and/or changes in legislation that may affect content. Recommendations are intended as guidelines only, for further information and technical assistance, please consult your Applications Engineer.
Aflas is a trademark of Asahi Glass Stellite is a trademark of Deloro Stellite Company Inc. Freon, Viton, Teflon and Vamac are trademarks of Dupont. Elgiloy is a trademark of Eligoy Ltd. Hastelloy is a trademark of Haynes International Inc.
©Copyright, intellectual and all other proprietary rights in the content (including but not limited to text and photographs) rests with ERIKS SEALING TECHNOLOGY (UK) 4 Introduction Logistics 5
Leader in Sealing Technology Pioneer Weston has a long history of innovative design enabling us to ERIKS Sealing Technology is a world Stock Availability create a sealing device specific to our customer’s needs. leader in high-performance sealing systems. We hold ISO 9001:2008 Thermo-chemical and environmental conditions dictate material As one of the worlds largest stockholders ▪▪ Dedicated technical support staff / certification across both of the UK of sealing and associated products, you customer service selection, whilst gland space, special features and sometimes sheer sealing core competence centres and are assured of the highest levels of ▪▪ Field based Sealing Technology scale have to be considered before the best sealing solution can throughout our distribution network for availability to keep your plant working. be identified. This is particularly true of Heavy Industrial Sealing your peace of mind. application engineers and specialists Our expertise will also help you select the Skilled research and development Applications. Whether your requirement is for individual correct item from our range or specify the ▪▪ engineers products, small batches or production optimal customised solution. Large dimensions result in large Weston is a premium brand of ERIKS volumes, ERIKS Sealing Technology’s Customer stocking programmes are ▪▪ 24 hour UK call out service available tolerances and clearance gaps that, Sealing Technology, after more than 80 The global ERIKS group manufacturing, logistics and quality available to maintain continuity and supply. combined with pressure or force, may years Pioneer Weston remains at the of companies are product systems ensure delivery of the highest ▪▪ Multi national locations to support cause elevated stresses within the forefront of sealing technology offering driven industrial service levels of service. our global customer network providers, focussing on five seal. The sheer scale of equipment continued innovation in the sealing of core activities: We are the preferred partner of the key often requires designs that allow in-situ heavy duty applications, from un-balanced global seal manufacturing companies, servicing, with only partial disassembly, mechanical sealing assemblies in Steel ▪ Sealing technology giving ERIKS an unrivalled insight into but also fabricated from differing Mills to large diameter split elastomer ▪ Power transmission their capabilities and the resources materials that are better suited to such seals in industrial fans. Flow technology available, allowing us to add value to dimensions. Tailored designs are required ▪ Augmenting our Pioneer Weston range, your business and the products that to mitigate for such requirements. ▪ Industrial plastics ERIKS Sealing Technology has vast you produce by selecting the optimal ERIKS service many customers within expertise in the specification and supply ▪ Tools and maintenance technical and logistical solution for your Heavy Industry across all of our core of polymer seals on a truly global basis. products application. activities, but our expertise in sealing These products are supported by shines through in the form of our Pioneer advanced technical and logistics services Weston range. Pioneer Weston’s core that form the link between our know-how product range consists of Elastomer and your delivery. and PTFE Rotary Lip Seals, along with bespoke Mechanical seals. Pioneer 6 Technical 7
Product Design Material Technology Centre
In an environment dedicated to innovation embodied into the finished product; validated, hyper-elastic material models The Material Technology Centre’s Capabilities: and free thought, our highly talented with our combined visual and CMM on which to base these analyses. FEA principal activities are to ensure ▪▪ Hardness (°IRHD/Shore A) design team, work with the latest 3D dimensional measurement system being allows our engineers to rapidly iterate our high quality standards are ▪▪ Compression-set CAD tools to capture design intent with programmed from the original 3D CAD to optimal design solutions, minimising maintained and to develop new ▪▪ Mechanical property testing your engineers. model. product development time and cost. compounds or technical solutions ▪▪ Chemical and heat ageing for your applications. ▪▪ Ozone resistance This technology proves an invaluable Finite Element Analysis ▪▪ Material composition tool in communicating and developing (FEA) Situated in Warrington this facility benefits ▪▪ Dimensional measurements conceptual solutions involved in from continuous investment in technology Using FEA as a mathematical technique ▪▪ Surface defects co-engineering partnerships; we can new and people and is one of the major to predict deflection strain, stress, ▪▪ Material properties at temperatures share 3D data in many standard formats reaction force and contact pressure picture factors in ERIKS Sealing Technology’s from –70°C to 300°C including IGES and STEP. based on dimensional information, success. ▪▪ Wet bench analysis physical constraints and material Extraction testing Change control and configuration ▪▪ properties improves design integrity and Failure analysis Abrasion resistance management techniques are used to ▪▪ ▪▪ speed. Our Materials Technology Centre ▪▪ Hyper elastic material characterisation Compression Stress Relaxation ensure that the design intent is fully ▪▪ can generate temperature specific, ▪▪ Immersion testing ▪▪ Internal mixers ▪▪ UV resistance ▪▪ Compression moulding ▪▪ DMTA – Dynamic Mechanical Thermal Analysis ▪▪ 2-Roll mills
Test and Validation Fourier Transform Infra-red Spectroscopy (FTIR) Molecules have specific frequencies at which they naturally rotate or vibrate. We run test programmes to SAE standard specifications, our own demanding By exposing a material sample to a spectrum of infra-red frequencies the equipment can internal validation standards, customer specific requirements and special test identify which molecules are present by detecting which frequencies are absorbed. This programmes for development projects or competitor benchmarking. technique is used to identify the base polymers material type in quality control and to identify thermo-chemical decomposition. Summary of standard test capability Thermo-Gravimetric Analysis (TGA) Maximum Seal OD: 250mm TGA is used to identify weight loss of a compound either isothermally over time or over a Speed: 20,000 r.p.m. (max), Cycles up to 7,000 r.p.m. (max) ramped temperature range. The relative composition of compounds can be identified, to Rotation: Clockwise/Anti-clockwise quantify polymer, organic and inorganic filler contents and types. Orientation: Shaft or housing rotation Pressure: 0-10 bar (water, oil, air) Differential Scanning Calorimetry (DSC) Temperature: -40°C up to +200°C DSC analysis measures changes in enthalpy (exothermic or endothermic energy changes) over time, or, with changes in temperature. DSC analysis can be used as a quality tool Shaft Eccentricity: Adjustable up to 1 mm (residual cure), an analytical tool (failure analysis), or in development of new materials (glass Housing Offset: Adjustable up to 2 mm transition, oxidation etc). Torque Measurement: Max 20 Nm Data Logging: Speed, temperatures and pressures With modulated DSC (MDSC), the samples are subjected to a non-linear heating/cooling Environmental: Slurry, dust, water regime (i.e. sinusoidal). This non-linear temperature profile allows the measurement of heat- capacity effects simultaneously with the kinetic effect, as well as increasing the sensitivity of the system. With the MDSC, overlapping events can also be separated, i.e. measurement of the Tg and molecular relaxation. 8 Materials 9
Elastomers Polychloroprene Nitrile Hydrogenated Nitrile (Neoprene Rubber, CR) (NBR) (HNBR) Elastomeric materials are described as having non-linear, viscoelastic behaviour, this means that they exhibit elastic recovery, time dependent behaviour and the relationship between load and deflection is not linear.
Elastomers used in sealing are often described as compounds, meaning that they are a mixture of ingredients manufactured under specific conditions.
Compounds typically comprise of: Neoprene (CR) rubbers are Nitrile (often referred to as Buna-N) Hydrogenated nitrile rubber (HNBR) homopolymers of chloroprene is the most commonly used elastomer is a highly saturated copolymer of Polymer backbone – a long chain of Fillers – organic or inorganic solid A typical HNBR 70 Shore A compound ▪▪ ▪▪ (chlorobutadiene), and were among in the seal industry and is a copolymer acrylonitrile (ACN) and butadiene. molecules made up of one or more particles with specific shapes and may have 20 ingredients and may contain the earliest synthetic rubbers used to of two monomers; acrylonitrile (ACN) monomeric units, this governs the chemistries that tailor physical only 30% polymer by weight. Therefore it The properties of HNBR are dependent produce seals. CR has good ageing and butadiene. The properties of basic thermal, chemical and physical properties such as tensile strength, is important not just to specify the family upon the acrylonitrile content and characteristics in ozone and weather this elastomer are ruled by the ACN properties of a compound. ISO and hardness, elongation at break, modulus of polymer backbone and hardness, but degree of hydrogenation (saturation) environments, along with abrasion and content which is broken down into three ASTM classifications define families of and compression-set. to specify an individual of the butadiene copolymer. They have flex-cracking resistance. classifications: elastomer such as NBR, FKM etc. compound / grade in order to achieve better oil and chemical resistance than Other ingredients - used to achieve ▪▪ consistent performance. Most elastomers are either resistant to High Nitrile: >45% ACN content nitrile rubber and withstand higher ▪▪ Cross-link – polymer chains are tied specific manufacturing, application Medium Nitrile: 30 – 45% ACN content deterioration from exposure to petroleum Low Nitrile: <30% ACN content temperatures. HNBR has excellent together by cross-links; short chains or cost requirements. based lubricants, or to oxygen; Neoprene resistance to hot water, steam and of molecules e.g. sulphur, to prevent is unusual, in offering a degree of The higher the ACN content, the ozone. Mechanical properties (e.g. chain slippage and create elastic resistance to both. CR also offers better the elastomers resistance to tensile and tear strength, elongation, behaviour. Different cross-link systems resistance to refrigerants, ammonia, hydrocarbon oils. With lower ACN content, abrasion resistance, compression set will fundamentally change Freon® (e.g. R134A), silicone oils, water, the material offers better flexibility at etc.) are also excellent and compounds thermo-chemical or physical properties. ozone, alcohols and low-pressure oxygen. low temperatures. Medium nitrile is, display strong dynamic behaviour at This, combined with a broad temperature therefore, the most widely specified elevated temperatures. range and moderate cost, accounts for due to its good overall balance in most HNBR can either be cured with sulphur its desirability in many seal applications. applications. Typically, nitrile rubber can be or with peroxide, depending on which CR is not effective in aromatic and compounded to work over a temperature properties are the most important. oxygenated solvent environments and range of -35°C to +120°C and is superior Typical applications include O-rings, offers only limited resistance to mineral to most other elastomers in regard to dynamic seals and gaskets. Limitations oils. As CR has a halogen incorporated compression set, tear and abrasion include poor electrical properties, poor in its backbone, such grades can offer a resistance. Nitrile rubbers possess flame resistance and swelling with degree of inherent flame retardancy. excellent resistance to oil-based fluids, vegetable oils, greases, water and air. aromatic oils. 10 Materials 11
Fluorocarbon Rubber Perfluoroelastomers Aflas® (FKM, Viton®) (FFKM) (FEPM)
FKMs (sometimes known as FPMs in hydrocarbons, fuels, silicone oils and Also related to the chemical resistance Perfluoroelastomers (FFKM) have a fully resistance. Chemical resistance is second The most common forms of Aflas® Europe) are frequently used to resist greases. However FKMs show poor of the different types of fluoroelastomer fluorinated polymer backbone resulting in to none, with good performance in a (100 or 150 series) are categorized extreme temperatures and harsh resistance to ethers, ketones, esters and is the cure system utilised. Bisphenol a fluorine content >71%. As the material broad variety of harsh environments within ASTM D 1418-01 as FEPM. chemicals. The strong carbon-fluorine amines. cure systems are common with the is free from carbon-hydrogen bonds in These grades are alternating Although all FFKM polymer backbones bonds that make up the polymer copolymer family; this system is a the polymer chain, the FFKM materials copolymers of tetrafluoroethylene and FKMs are available as a copolymer (two are fully fluorinated, the cross-linking structure provide high thermo-chemical condensation reaction, which can be offer the ultimate thermo-chemical propylene, with a fluorine content of monomers), terpolymer (three monomers) systems used to join the polymer chains resistance, giving excellent ageing reversed when exposed to steam, hot resistance. ~54%. Such chemical structures offer or as a tetrapolymer (four monomers). together differ significantly, resulting characteristics shown by low compression water etc. Terpolymers or tetrapolymers excellent heat resistance, exceptional Each type determines both fluorine This is demonstrated by the good long- in varied temperature and chemical set at elevated temperatures. are most commonly cured using peroxide chemical resistance (significantly to content and chemical structure which term, high-temperature, compression-set resistance. based systems, which offer significant alkalis and amines), along with high in turn significantly impact the chemical FKMs offer excellent resistance to improvements in steam and water electrical resistivity. resistance and temperature performance mineral oils and greases, aliphatic, resistance. Types of Perfluoroelastomers aromatic and some chlorinated of the polymer. Aflas® compounds are resistant to Common FFKM Types a wide range of chemicals such as acids, alkalis and steam, offering Peroxide 240°C Broad chemical resistance. Types of Fluorocarbon Rubber superior resistance to strong bases in High temperature, excellent mechanical properties. Reduced ASTM D1418 Common Typical Fluorine Triazinic 327°C comparison with FKM. Typical Cure system Description chemical and steam resistance. Designation Name Content Modified Triazinic 275°C Broad chemical resistance, excellent mechanical properties. Type 1 Viton® A Bisphenol or amine 66% General purpose with excellent mechanical properties High temperature resistance, excellent mechanical properties, Viton® B, F Bisphenol, amine or Improved fluid and oil/solvent resistance, including improved fuel resistance. Modified Peroxide 325°C Type 2 66 - 70% reduced amine and base resistance. or GF peroxide Peroxide cured materials offer improvements in coolant and water resistance
Type 3 Viton® GLT Peroxide 64 - 67% Improved low temperature resistance but reduced chemical resistance
Type 4 Aflas® Peroxide 55% Excellent resistance to lubricating oils, corrosion inhibitors and coolants.
Speciality grade, excellent chemical resistance, including increased resistance Type 5 Viton® ETP Peroxide 67% to amines and fuel additives. 12 Materials 13
Ethylenepropylene Rubbers Silicone Polyurethane (EPM, EPDM) (VMQ) (AU, EU, PU)
pendent to the main chain. EPDM Silicone elastomers are commonly used Polyurethane is a polymer formed from a to abrasion, and are therefore often There are two types of polyol materials can be cured with either sulphur for extreme temperature ranges (-90°C to chain of organic units joined by urethane specified for use in reciprocating seals. commonly used: polyester based or or peroxide; sulphur offers improved +230°C) and offer good low temperature links. Polyurethanes are produced by the polyether based. The polyester-based A major contributing factor in the Ethylenepropylene based rubbers mechanical properties and peroxide flexibility. They also offer resistance to addition reaction of a polyisocyanate with systems offer the best mechanical mechanical performance of are forms of non-polar synthetic enhanced heat stability. EPM rubber ultra violet radiation (UV), oxygen and a polyalcohol (polyol) in the presence of properties and resistance to oils; this is polyurethanes is the selection of the rubbers. EPM (sometimes also known can only be cured using free-radicals ozone. a catalyst and other additives. the most common type of polyurethane. cross-linking /chain extender agents. as EP) rubber is based on ethylene (peroxide or radiation curing). As the Polyether systems show better Silicone is best suited to non-dynamic Polyurethane demonstrates excellent Millable polyurethanes can utilise the and propylene monomers, with no polymer chains of both EPM and EPDM resistance to water and steam. applications, as this elastomer type resistance to weathering and oxidation. more common sulphur or peroxide cure unsaturation (carbon-carbon double have completely saturated hydrocarbon possess relatively low tear strength and They resist hydrocarbon fuels and mineral systems; thermoplastic and thermosetting Polyurethane is available in filled bonds) present. EPDM is also based on backbones, excellent ozone resistance abrasion resistance, although higher oils, however some grades degrade varieties use other agents, selected to grades to tailor mechanical properties the same constituent monomers, however and very good resistance to heat and strength grades are available. They are (hydrolyse) in hot water. Polyurethane optimise mechanical properties. e.g. with added MoS for self as no unsaturation is present in the oxidation are achieved. 2 also resistant to many mineral oils. also offers some of the best resistance lubrication. backbone, it is added as a third monomer, Being non-polar elastomers, EPM and EPDM offer good performance in polar Polyurethane Chain Extender Systems fluids such as alcohols, water, steam, Name Synonym Features / benefits coolants etc., but perform badly in non-
polar fluids such as hydrocarbon oils, 2,4 - diisocyanato -1- methylbenzene TDI General purpose; most common lubricants and greases.
4,4 - Methylenebis (phenyl isocyanate) MDI General purpose
1-isocyanato - 4 - (4 - isocyanato - 3 - methylphenyl) - 2 - TODI Improved mechanical properties; excellent heat resistance methylbenzene
1,4 - diisocyanatobenzene PPDI Best heat resistance 14 Materials 15
Polytetrafluoroethylene Fabric / Phenolic Resin Polyamide (PTFE) Composites (Nylon)
PTFE (polytetrafluoroethylene) is a which offer higher temperature (+315°C) ▪▪ Graphite or molybdenum disulphide Phenolic resins, also known as phenol Nylon is a generic designation for a chemical resistance as well as the synthetic, thermoplastic polymer which and deformation resistance. PTFE is (MoS2) filled to lower the coefficient formaldehyde resins (PF), are synthetic family of synthetic thermoplastic polymers mechanical properties. offers exceptional chemical resistance also available with fillers to enhance its of friction. thermosetting resins created by the known generically as polyamides, Nylon offers excellent mechanical over a wide range of temperatures and physical characteristics. reaction of phenols with formaldehyde. developed in 1938. Nylons are Bronze filled for excellent wear, properties in combination with good offers extremely low levels of friction. ▪▪ These thermosets perform well in condensation copolymers formed by Typical fillers include: deformation strength, thermal heat and wear resistance. Chemical most engineering applications such as: reacting a diamine and a dicarboxylic PTFE lacks elasticity which prevents conductivity (reduced chemical resistance is generally broad, with good Glass fillers for improved deformation hydraulic fluids, oils, glycols, phosphate acid. Chemical elements included are its use as an elastomeric-type sealing ▪▪ resistance). resistance to most chemicals, although and wear. esters, silicone oils and brake fluids carbon, hydrogen, nitrogen, and oxygen. ring, however it is commonly used for Nylon can be susceptible to damage ▪▪ Polyester filled for improved high etc. Phenolic resins demonstrate high The numerical suffix specifies the anti-extrusion as a back-up ring, and for Inorganic fillers (e.g. calcium silicate, when exposed to moisture, oxidising ▪▪ temperature and wear resistance, for compressive strength, dimensional numbers of carbons donated by the non-stick requirements. Owing to its low wollastonite) are used in a similar agents or strong acids. As with other applications where running surfaces stability and abrasion resistance, and are monomers; the diamine first and the friction and excellent chemical resistance, manner to glass fillers, with reduced materials, combinations with fillers are non-hardened. commonly used in wear-ring applications diacid second. it is also commonly used for applications can often be used to improve specific abrasiveness. as fabric resin composites. such as bearings, gears, rotary seals etc. ▪▪ Polyphenylenesulphide (PPS) filled The most common variant is Nylon 6-6 properties e.g. MoS2 for reduced Carbon filled for considerable wear ▪▪ for improved wear extrusion and which refers to the fact that the diamine friction. Non-filled (virgin) grades are stable and deformation improvement, and deformation resistance. and the diacid each donate 6 carbons up to +260°C and are quite flexible Nylon is hydroscopic in nature and increased thermal conductivity. to the polymer chain. The levels of these and resistant to breaking under tensile therefore not recommended for use in ▪▪ Polyimide (PI) fillers are used to monomers has an influence on the Carbon-fibre filled for increased wear and compressive stresses. Modified ▪▪ increase wear and abrasion resistance, aqueous environments. resistance and use against backbone grades of PTFE are available being polymeric the abrasion of non-hardened surfaces. running surfaces is reduced.
▪▪ Combinations of some of the above are also often used to offer optimal performance in service. 16 Materials 17
Acetal Plastic Polyether ether ketone Polyimide (PI) (PEEK)
Polyoxymethylene (POM), also known as Polyether ether ketone (PEEK) is an ▪▪ Glass-filled PEEK grades have Polyimide (sometimes abbreviated PI) is Polyimide is available in both virgin and These properties are maintained during acetal, polyacetal, or polyformaldehyde. organic, semi-crystalline, thermoplastic increased compressive strength a polymer based upon imide monomers. filled grades that modify physical and continuous use up to temperatures of These are engineering thermoplastics polymer used in demanding engineering and shear strength at elevated They are available in both thermoplastic mechanical characteristics. Typical fillers ~230°C, and also for short periods of
used in applications that require a applications. PEEK offers excellent temperatures. and thermosetting forms, although the include graphite, MoS2 or PTFE for time up to 480°C polymeric material with high stiffness, low mechanical properties, which are most common is the thermosetting enhanced frictional properties, and glass Carbon-filled grades have enhanced friction and excellent dimensional stability. maintained at high temperatures. Its ▪▪ version used for engineering applications. or Carbon-fibre for increased strength. compressive strength, tensile strength A common form of this plastic is Delrin® resistance to thermal attack and its Thermosetting polyimides are known and wear-resistance. Un-filled polyimides demonstrate offered by DuPont Engineering Plastics. dimensional stability at high temperatures, for thermal stability, good chemical excellent mechanical properties, but when along with broad chemical resistance, PTFE-filled PEEK offers a reduced resistance, excellent mechanical The chemical composition and high ▪▪ compounded with graphite or glass fibre allows PEEK to be used in applications coefficient of friction. properties, and characteristic colour. degree of crystallinity result in a unique reinforcements, have flexural strengths such as bearings, sealing back-up combination not found in metals or most Typical polyimide components are not in excess of 300 MPa, flexural moduli of rings etc. ▪▪ Graphite-filled PEEK reduces the other plastics: friction of the materials, improving the affected by most commonly used solvents >20 GPa and exhibit very low creep and PEEK is available as non-filled (‘virgin’) ‘glide’ properties. and oils (including hydrocarbons, esters, high tensile strength. Good mechanical strength and stiffness ▪▪ grades, and as various filled grades ethers, alcohols etc.). They resist weak Toughness and good resistance to ▪▪ which modify its physical and mechanical Combinations of some of the above acids, however, are not recommended for fatigue and repeated impacts characteristics. are also often used to offer optimal use in steam, alkalis or inorganic acids. ▪▪ Excellent resistance to moisture, performance in service. hydrocarbons and solvents ▪▪ Virgin grades offer high impact ▪▪ Excellent dimensional stability resistance as well as a degree of ▪▪ Resistance to creep recovery. ▪▪ Inherent lubricity ▪▪ Operating temperature up to ~80°C
Typical applications include impellors, couplings, seals and bearings. 18 Materials 19
Selection of Standard ERIKS Compounds Physical Properties of ERIKS Compounds
A range of different ERIKS compounds developed for specific applications FFKM- FFKM- Technical Data 36624 47702 55985 886510 51414 51414G 514320 514141 75-162 75-164 Compound Elastomer Colour Hardness Temperature Application Green Reference Colour Black Black Black Black Black (RAL Black Black Black Black 6011) Standard compound with good compression-set values –35 to +110°C and medium acrylonitrile content for use with hydraulic oils, 36624 Black 70 Hardness (ISO 48 75 75 –31 to +230°F vegetable oils, animal fats, acetylene, alcohols, water, air, 70 90 70 70 75 75 90 75 Method M) ±5 °IRHD (Shore A) (Shore A) Nitrile, NBR, fuels and many other fluids. Buna N Specific Gravity 1.25 1.25 1.12 1.24 1.85 2.07 1.87 1.88 – – –25 to +110°C Similar to 36624 with higher hardness for higher 47702 Black 90 –13 to +230°F pressure applications. Minimum operating temperature –30 –30 –45 –40 –20 –20 –20 –10 – – °C High performance, peroxide cured EPDM compound with excellent compression set. For use with water, steam, –45 to +150°C EPDM 55985 Black 70 solvents, alcohols, ketones, esters etc. Not recommended –49 to +320°F TR-10 °C –22 –22 –40 –33 –16 –16 –16 –16 – – for vegetable or mineral oils.
Maximum operating temperature 120 120 150 150 200 200 200 200 275 310 °C Low temperature HNBR, offering good hydrocarbon Hydrogenated Nitrile, –40 to +150°C 886510 Black 70 resistance and high temperature performance. HNBR –40 to +320°F Good abrasion resistance. Tensile strength MPa 13 16 15.2 20 13 12 14 19.3 14 13
General purpose compound with very low compression- –20 to +200°C set characteristics at high temperatures and chemical Elongation % 250 150 188 340 170 170 120 328 130 137 51414 Black 75 –4 to +392°F resistance to oils, fats, fuels. Suitable for vacuum applications. Compression-set (ISO 815 method A) General purpose compound with very low compression-set Fluorocarbon –20 to +200°C 51414G Green 75 characteristics at high temperatures and chemical resistance FKM, A-Type –4 to +392°F Test time (hours) 22 22 22 22 24 24 24 22 70 70 to oils, fats, fuels. Suitable for vacuum applications.
Test temperature °C 100 100 150 150 200 200 200 175 200 200 –20 to +200°C Similar to 51414 with higher hardness for higher 514320 Black 90 –4 to +392°F pressure applications. Result – Slab % 12 13 14 12 12 14 14 14 – –
-10 to +200°C FKM GF- Type Terpolymer with improved steam Result – O-ring FKM, GF-Type 514141 Black 75 20 25 15 16 18 19 18 – 14.2 22.9 +14 to +392°F and temperature resistance. 3.53 mm %
Broadest range of chemical and temperature resistance Heat Ageing (ISO 88) +275°C for chemical processing industry. Suitable for acids, FFKM-75-162 Black 75 +527°F basics, amines, steam, ethylene oxide and many Perfluoroelastomer, other aggressive chemicals. Test time (hours) 70 70 70 20 70 70 70 70 – – FFKM High temperature compound with superb compression-set +310°C Test temperature °C 100 100 125 150 200 200 200 250 – – FFKM-75-164 Black 75 characteristics and improved resistance against steam and +590°F amines. Very suitable for temperature cycle applications. Hardness change °IRHD 6 4 2 -2 4 5 5 4 – – 20 Materials 21
Common chemical compatibilities of materials NBR HNBR CR ACM AEM PU (AU or EU) FKM (A) FKM (GF) VMQ FKM (low temp) EDPM FEPM FFKM Phenolics Nylon PPS PEEK Polyimide (e.g.Vesp) PTFE NBR HNBR CR ACM AEM PU (AU or EU) FKM (A) FKM (GF) VMQ FKM (low temp) EDPM FEPM FFKM Phenolics Nylon PPS PEEK Polyimide (e.g.Vesp) PTFE Low sulphur diesel fuel 1 1 2 1 1 2 2 1 4 1 4 1 1 1 1 1 1 1 1 Alcohols (not methanol) 1 1 1 4 3 4 1 1 2 1 1 1 1 2 1 1 1 1 1 Lubricant - synthetic 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Aliphatic hydrocarbons 1 1 2 1 2 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Lubricating oils (API CC-type) 1 1 2 1 2 1 1 1 3 1 4 1 1 1 1 1 1 1 1 Alkalis (bases) 2 1 2 3 3 3 3 3 3 3 1 1 1 2 1 2 1 2 1 Lubricating oils (API CD-II-type) 3 1 3 2 3 2 1 1 4 1 4 1 1 1 1 1 1 1 1 Alkanes 1 1 2 1 2 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Lubricating oils (API CD-type) 1 1 2 1 2 1 1 1 3 1 4 1 1 1 1 1 1 1 1 Amines 3 2 3 3 3 3 4 4 3 4 1 1 1 3 1 2 1 2 1 Lubricating oils (API CE-type) 1 1 2 1 2 1 1 1 4 1 4 1 1 1 1 1 1 1 1 Aromatic hydrocarbons 4 4 4 2 3 3 2 1 3 1 4 3 1 2 2 2 1 1 1 Methane 1 1 2 1 2 3 1 1 3 1 4 1 1 1 1 1 1 1 1 Base oil 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Methanol 1 1 1 4 1 3 3 1 2 2 1 1 1 1 2 1 1 1 1 Biocide - conc. 3 3 2 4 4 1 3 3 3 3 2 2 1 1 3 1 1 1 1 Mineral oil / lubricants 1 1 2 1 2 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Biocide - dilute 1 1 1 2 2 1 2 2 3 2 1 1 1 1 2 1 1 1 1 Natural gas 1 1 2 1 2 3 1 1 3 1 4 1 1 1 1 1 1 1 1 Bioethanol 2 2 1 4 3 4 3 1 2 1 1 1 1 2 1 1 1 1 1 Petroleum fuels 2 2 2 2 2 2 2 1 3 1 4 2 1 1 2 1 1 1 1 Brake fluid - DOT, 3 and 5.1 types 3 3 2 4 4 4 4 3 3 3 1 2 1 1 1 1 1 1 1 Polyalkylene glycol (PEG) 2 1 1 4 2 3 1 1 3 1 1 1 1 1 2 1 1 1 1 Brake fluid - DOT 5 type 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 1 1 1 1 Polyalkylene glycol (PAG) 2 1 1 4 1 3 1 1 3 1 1 1 1 1 2 1 1 1 1 Cement 2 1 2 3 3 3 2 1 3 1 1 1 1 1 1 1 1 1 1 Polyol fire resistant ester oil 2 1 2 4 4 3 3 3 3 3 1 2 1 1 1 1 1 1 1 Corrosion inhibitors 3 2 3 3 3 3 4 4 3 4 1 1 1 3 1 1 1 1 1 Polypropylene glycol (PPG) 2 1 1 4 1 3 1 1 3 1 1 1 1 1 2 1 1 1 1 Diesel fuel 1 1 2 1 1 2 2 1 4 1 4 1 1 1 1 1 1 1 1
Engine lubricating oils 1 1 2 1 2 1 1 1 3 1 4 1 1 1 1 1 1 1 1 Poly-a-olefin oil 1 1 2 1 2 2 1 1 3 1 4 1 1 1 1 1 1 1 1
Ester based hydraulic fluids 2 1 2 4 4 3 3 3 3 3 1 2 1 1 1 1 1 1 1 Rapeseed (canola) oil 1 1 3 1 1 1 1 1 4 1 4 1 1 1 1 1 1 1 1
Ethanol 2 2 1 4 2 4 1 1 1 1 1 1 1 2 1 1 1 1 1 Salt water 2 1 1 1 1 3 1 1 1 1 1 1 1 1 2 1 1 1 1
Fatty acid methyl ester (FAME) 2 2 2 1 1 2 2 1 3 1 4 1 1 1 1 1 1 1 1 Scale inhibitors 3 3 3 3 3 3 3 1 3 1 1 1 1 1 3 2 1 3 1
Fire fighting media 4 4 1 4 4 2 1 1 2 1 1 2 1 1 1 1 1 1 1 Silicone oils 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1
Fluorinated grease 1 1 1 1 1 1 2 3 1 2 1 2 2 1 1 1 1 1 2 Slurries 2 1 1 1 1 3 1 1 3 1 1 1 1 1 2 1 1 1 1
Glycol-based coolants 2 1 1 4 1 3 1 1 3 1 1 1 1 1 2 1 1 1 1 Solvent - aromatic 4 4 4 2 3 3 1 1 3 1 4 3 1 2 2 2 1 1 1
Glycol-ether based brake fluids 3 3 2 4 4 4 4 3 3 3 1 2 1 1 2 1 1 1 1 Solvent - halogenated 1 1 3 1 1 4 3 3 2 3 1 2 2 1 1 1 1 3 1
Hydraulic fluid - fire resistant 2 1 2 4 4 3 3 3 3 3 1 2 1 1 1 1 1 1 1 Water, room temp 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 o Hydraulic fluid - HFD-R 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Water / Steam 100 - 150 C 3 2 3 4 3 4 2 1 2 1 1 1 1 1 4 1 1 2 1 o Hydraulic fluid - HFD-S 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Water / Steam 150 - 200 C 4 4 4 4 4 4 4 1 3 1 3 1 1 2 4 2 1 3 1 Water / Steam >200oC 4 4 4 4 4 4 4 4 4 4 4 4 2 3 4 3 1 4 1 Hydraulic fluid - HFD-U 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1
Hydraulic fluid - mineral oil 1 1 3 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Synthetic bio-degradable ester 2 1 2 4 4 3 3 3 3 3 1 2 1 1 1 1 1 1 1
Hydraulic fluid - oil/water emulsion (HFB) 1 1 2 1 2 2 1 1 3 1 3 1 1 1 1 1 1 1 1 Synthetic grease 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1
Hydraulic fluid - phospate ester 2 1 2 4 4 3 3 3 3 3 1 2 1 1 1 1 1 1 1 Synthetic oil 1 1 2 1 1 1 1 1 3 1 4 1 1 1 1 1 1 1 1
Hydraulic fluid - water free 1 1 2 1 1 2 1 1 3 1 4 1 1 1 1 1 1 1 1 Thinners 4 4 4 3 3 4 1 1 3 1 4 2 1 1 2 2 1 1 1
Hydraulic fluid - water/glycol (HFC) 2 1 1 3 3 3 1 1 2 1 1 1 1 1 2 1 1 1 1 Universal transdraulic fluds 3 1 3 2 3 2 1 1 3 1 4 1 1 1 1 1 1 1 1
Hydraulic fluid - water/oil emulsion (HFA) 1 1 2 1 2 2 1 1 3 1 3 1 1 1 1 1 1 1 1 Vegetable oils 1 1 3 1 1 1 1 1 3 1 4 1 1 1 1 1 1 1 1
Liquified natural gas (LNG) 1 2 2 3 4 1 1 1 3 1 4 1 1 1 2 1 1 1 1 Weathering / UV 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1
Liquified petroleum gas (LPG) 1 1 2 2 2 3 1 1 3 1 4 2 1 1 2 1 1 1 1 Xylene 2 1 4 4 4 4 2 1 4 1 4 4 1 1 1 1 1 1 1 Lithium complex grease 2 2 3 2 2 1 1 1 1 1 4 1 1 1 1 1 1 1 1 KEY: 1 = Excellent 2 = Good 3 = Poor 4 = Not recommended Material information can also be found on our Chemical Compatibility tool: http://oring-groove-wizard.eriks.co.uk/chemicalcompatibility.aspx 22 Applications 23
ATEX Case Study The Directive ATEX 94/9/EC (ATEX 95) – ‘Equipment and Protective Summary Systems intended for use in potentially explosive atmospheres’ has been mandatory since July 2003.
In December 2005, the European Sealing Association (ESA) Mechanical Seals Division Background: offered this clarification of the ATEX terminology: When manufacturing large diameter steel billets, hydraulic rams are used containing “Mechanical seals which use standard parts or modifications thereof HFA water based fluids. Premature seal failure was seen with catastrophic leakage are considered machinery elements. Only in exceptional circumstances every 2 weeks. High cost incurred in downtime and maintenance became an issue should a mechanical seal be classified as an ATEX component. An and a solution had to be found as quickly as possible. engineered mechanical seal, in the context of ATEX, should be when Failure Analysis a specifically designed mechanical seal (which meets the criteria of The cylinder housing was measured, surface finishes checked and a failed set of an ATEX component) has its design features based on the ignition seals were analysed to determine reason for failure. The failing rod seal was a NBR potential of a particular service.” fabric chevron profile, accompanied by NBR wipers. The chevrons showed signs of The systems into which mechanical and polymeric seals are incorporated must be high wear with the fabric visually seen and white in colour. ATEX compliant, not the seal itself. Seal profiles and sizes were correct, based on housing dimensions and surface Water based lubricants to finish and FTIR analysis showed the issue to be material compatibility with the fluid. ISO 6743-4 Fabric reinforced seals need lubrication, oil is absorbed into the fabric which keeps the NBR elastomer lubricated allowing free movement, this reduction in friction also
reduces heat build up. Water based fluids will not absorb into the fabric which means Water based fluids are used as coolants for large scale equipment, however seals need no lubrication, friction equals heat build up and the end result being increased wear. lubrication where movement and pressure are seen, water alone does not offer this so additional lubricants must be added. Conclusion
ISO 6743-4 (5) highlights three main water based lubricants as: A hydrolysis-resistant thermoplastic polyurethane elastomer (TPU) does not require absorption to provide the required level of lubricity and is available ▪▪ HFA oil in water emulsion or synthetic aqueous solution in water, typically more than in billet form. Seals were machined in profiles appropriate 80% water content, operating temperature ranges from 5°C to 55°C for the current housing arrangement within very (42°F to 130°F). short lead-times. The new seals extended the mean time between failures (MTBF) to beyond ▪▪ HFB oil in water emulsion, typically more than 40% water, operating temperatures the planned maintenance schedule, removing from 5°C to 60° C (42°F to 140°F). unscheduled down-time and thus reducing ▪▪ HFC water polymer solutions, typically more than 35% water, operating temperature total cost of ownership (TCO). ranges from -25°C to 60°C (-14°F to 140°F). The customer was delighted, HFD working temperature ranges -20°C to 150°C (-5°F to 300°F), including: estimating their savings to be over £78K per annum in reduced HFDR synthetic anhydrous fluids composed of phosphate esters. ▪▪ down-time. ▪▪ HFDU polyol esters and polyalkalene glycols. 24 Applications 25
Metal Processing Material Handling and Preparation Ironmaking
Applications Requirements Seal Profiles Sealing Materials Applications Requirements Seal Profiles Sealing Materials
Heavy Duty Rotary seals Split Rotary seals NBR Large dimensions NBR Heavy Duty Rotary seals Metal Face seals Hot and abrasive FKM Broad tolerances HNBR Gearboxes Split Rotary seals Conveyor Systems O-rings conditions HNBR Aggressive / Dirty / Abrasive AU V-rings Thermo-plastic labyrinth PTFE environments seals NBR Slag taphole drills & Hydraulic seals Lip seals Abrasive conditions FKM clay guns O-rings NBR AU Heavy Duty Rotary seals FKM Cranes & Easy installation Split Rotary seals Component Mechanical VMQ HNBR Lifting equipment and replacement Hydraulic seals Hot and abrasive seals NBR PTFE Pumps and Valves Metal face seals conditions PTFE Lip seals HNBR AU O-rings PTFE Large dimensions Heavy Duty Rotary seals NBR Hot and abrasive Stacker Reclaimers Broad tolerances Metal face seals HNBR Flow gates conditions. Bespoke mechanical seals Application specific (Slew and trench) Aggressive / Dirty / Abrasive Hydraulic seals AU Ease of replacement environments Heavy Duty Rotary seals NBR Large dimensions Heavy Duty Rotary seals NBR Ladles & “Torpedos” Abrasive conditions Hydraulic seals FKM Broad tolerances Ball mills Bespoke mechanical seals HNBR O-rings AU Aggressive / Dirty / Abrasive Hydraulic seals AU environments
Primary Process - (Coking / Sintering / Pelletizing) Steelmaking
Applications Requirements Seal Profiles Sealing Materials Applications Requirements Seal Profiles Sealing Materials
Component Mechanical VMQ NBR Heavy Duty Rotary seals Hot and abrasive seals NBR Hot and abrasive FKM Pumps and Valves Gearboxes Split Rotary seals conditions PTFE Lip seals HNBR conditions HNBR V-rings O-rings PTFE PTFE Hot and abrasive FKM Rotary kilns Heavy Duty Rotary seals Component Mechanical VMQ conditions HNBR Hot and abrasive seals NBR Pumps and Valves Heavy Duty Rotary seals conditions PTFE Lip seals HNBR Large dimensions Split Rotary seals O-rings PTFE NBR Broad tolerances Metal Face seals Conveyor Systems HNBR Permeation FKM Aggressive / Dirty / Abrasive O-rings Gas delivery systems O-rings AU Oxidation resistance VMQ environments Thermo-plastic labyrinth seals FKM O-rings FKM NBR O-rings Wiper seals NBR Hydraulic systems, Hot and abrasive AU Hydraulic and Wiper seals Piston seals Hot and abrasive AU e.g. jacks conditions POM pneumatic Piston seals Bearing strip conditions POM PA cylinders / rams Bearingstrip Rod seals PA PTFE Rod seals PTFE 26 Applications 27
Metal Processing Smelting Rolling, Tube and Pipe Applications Requirements Seal Profiles Sealing Materials
Component Mechanical VMQ Applications Requirements Seal Profiles Sealing Materials Hot and abrasive seals NBR Pumps and Valves conditions PTFE Lip seals HNBR Heavy Duty Rotary seals O-rings PTFE Large dimensions NBR Split Rotary seals O-rings Work-roll and Broad tolerances HNBR FKM O-rings Wiper seals back-up roll Chocks Aggressive / Dirty / Abrasive FKM NBR Labyrinth seals Roller systems Piston seals environments AU Hot and abrasive AU Bespoke mechanical seals (tables, balance Bearing strip conditions POM FKM cylinders, etc.) Rod seals O-rings PA NBR Labyrinth seals Wiper seals PTFE Gauge Oil resistance AU Bespoke mechanical seals Piston seals Control Units Abrasive particulates POM Bearing strip Abrasive Heavy Duty Rotary seals FKM PA Anode green mills Rod seals Water resistance Bespoke Mechanical seals HNBR PTFE VMQ Chemical Water de-scalers O-rings HNBR resistance FKM
O-rings FKM Wiper seals Roller systems NBR Piston seals (tables, balance Hot and abrasive AU Bearing strip cylinders, coiling tension conditions POM Rod seals units etc.) PA Labyrinth seals PTFE Bespoke mechanical seals
Continuous Casting Treatments - Pickling, Coating and Shearing Applications Requirements Seal Profiles Sealing Materials
Heavy Duty Rotary seals Large dimensions NBR Split Rotary seals Applications Requirements Seal Profiles Sealing Materials Rollers and Broad tolerances HNBR O-rings Roller bearing units Aggressive / Dirty / Abrasive FKM Labyrinth seals environments AU Component Mechanical VMQ Bespoke mechanical seals Hot and abrasive seals NBR Pumps and Valves FKM conditions PTFE Lip seals HNBR O-rings NBR O-rings PTFE Wiper seals Roll Control and Oil resistance AU Piston seals Heavy Duty Rotary seals NBR Positioning Abrasive particulates POM Bearing strip Rollers and Large Diameter Split Rotary seals HNBR PA Rod seals Roller bearing units Chemical Resistance Labyrinth seals FKM PTFE Spring energised seals PTFE VMQ Water Cooling Chemical O-rings HNBR systems resistance FKM Component Mechanical VMQ Hot and abrasive seals NBR Pumps and Valves conditions PTFE Lip seals HNBR O-rings PTFE 28 Applications 29
Metal Processing Heavy Duty Rotating Equipment Forging, Extrusion, Shearing
Applications Requirements Seal Profiles Sealing Materials Applications Requirements Seal Profiles Sealing Materials
Component Mechanical VMQ Compressors High Speeds PTFE Rotary seals PTFE Hot and abrasive seals NBR Pumps and Valves Heavy Duty Rotary seals NBR conditions PTFE Lip seals HNBR Industrial Gearboxes Large Diameters O-rings PTFE Split Rotary seal FKM O-rings O-rings FKM FKM Wiper seals Gen Sets High Temperatures Heavy Duty Rotary seals NBR FFKM Piston seals Hot and abrasive AU Roller systems Bearing strip NBR conditions POM Heavy Duty Rotary seals Rod seals Easy installation FKM PA Winches Split Rotary seals Labyrinth seals and replacement HNBR PTFE Hydraulic seals Bespoke mechanical seals AU FKM O-rings PTFE NBR Heavy Duty Rotary seals Wiper seals Industrial Fans High Speeds FKM Hot and abrasive AU Split Rotary seal Ram systems Piston seals HNBR conditions POM Bearing strip V-rings PA NBR Rod seals High Temperatures Bespoke Mechanical seals PTFE Motors FKM Chemical resistance Labyrinth seals FKM PTFE O-rings O-rings NBR Wiper seals Shearing & Hot and abrasive AU Piston seals slitting lines conditions POM Bearing strip PA Rod seals PTFE Packaging Pulp, Paper and Print Processing Aggregates Applications Requirements Seal Profiles Sealing Materials Cement Processing / Sand Treatments / Plaster Board FKM Chemical compatibility Chemical Pulping Lines O-rings EPDM (Bleaching Agents) Aflas® Applications Requirements Seal Profiles Sealing Materials Aflas® FKM Terpolymers Chemical compatibility Heavy Duty Rotary seals Pumps and Valves O-rings HNBR Stacker Reclaimers / Aggressive / Dirty / Abrasive NBR Steam resistance Metal face seals EPDM Boring equipment environments HNBR Hydraulic seals FFKM Heavy Duty Rotary seals Glue/Doctor Rolls Aggressive media Bespoke Mechanical seals Application specific Large dimensions Split Rotary seals NBR Broad tolerances Metal Face seals NBR Screw Conveyors HNBR Paper Rolls High Speed Aggressive / Dirty / Abrasive O-rings Heavy Duty Rotary seals FKM AU High Misalignment environments Thermo-plastic labyrinth seals Heavy Duty Rotary seals FKM Impellers, Mixers Bespoke Mechanical seals Crushers Large dimensions Heavy Duty Rotary seals NBR Chemical compatibility PTFE Grinders Broad tolerances Split Rotary seals HNBR and Agitators Spring energised seals Ball Mills Aggressive / Dirty / Abrasive Metal Face seals AU O-rings Screening environments O-rings EPDM Printing Ink NBR Printing O-rings compatibility FKM FFKM 30 Products 31
Heavy Duty Rotary Lip Seals Elastomeric Lip Styles
Product Overview Profile Profile Features Profile Advantages Applications R1 -- Ground metal outer diameter -- Press fit metal OD for precise location in housing -- Industrial One of the most frequently used types of seal is the rotary lip seal, generally used for -- Spring loaded primary seal lip -- Metal insert gives seal more rigidity, specifically for larger sizes gearboxes sealing lubricating oil or grease in rotary shaft applications. This is achieved by: -- Additional reinforcing metal -- General Machinery insert ▪▪ Providing static sealing between the outer diameter of the seal and its housing.
▪▪ Sealing between the shaft and the main sealing lip when either static or dynamic. The radial load exerted by the sealing lip must be sufficient to retain the oil or R2 -- Ground metal outer diameter -- Press fit metal OD for precise location in housing -- As above grease, but not so high that excessive friction or wear occurs. -- Spring loaded primary seal lip -- Metal insert gives seal more rigidity, specifically for larger sizes -- Additional reinforcing metal -- The addition of a dust lip offers protection against low to medium insert dirt ingress The principal of this can be affected by the following basic parameters and must -- Additional dust lip always be taken into consideration when selecting the correct profile and material to enable the optimum performance: R70 -- Spring loaded primary seal lip -- Fabric reinforced outer diameter allows for easy installation and -- Industrial ▪▪ Shaft rotational speed and direction -- Fabric reinforced outer diameter removal gearboxes -- Can be supplied split for in-situ replacement -- Rolling mills ▪▪ Operating temperature -- Flexible sealing lip to accommodate shaft eccentricity -- Cranes / Winches -- General Machinery ▪▪ Application hardware details
▪▪ Medium being sealed both internally and externally R71 -- Spring loaded primary seal lip -- Fabric reinforced outer diameter allows for easy installation and -- As above -- Fabric reinforced outer diameter removal ▪▪ Pressure seen within sealed unit -- Additional dust lip -- Can be supplied split for in-situ replacement -- Flexible sealing lip to accommodate shaft eccentricity -- The addition of a dust lip offers protection against low to medium In addition to the heavy duty series of rotary seals in this dirt ingress brochure, comprehensive details of our complete rotary seal range may be found at http://www.pioneerweston.com R72 -- Machined metal outside diameter -- Robust construction for retaining grease -- Cement grinders -- Elastomer sealing lip with -- Low radial sealing force reduces seal wear -- Rolling mills moulded-in finger spring
R73 -- Machined metal outside diameter -- Press fit metal OD for precise location in housing -- Work / Back-up -- Steel re-enforcing ring -- Metal re-enforcing ring gives seal more rigidity rolls -- Spring loaded primary seal lip -- Retained garter spring along with flexible sealing lip copes with high -- Paper mills shaft to bore misalignment / run-out
R74 -- Machined metal outside diameter -- Press fit metal OD for precise location in housing -- As above -- Steel re-enforcing ring -- Metal re-enforcing ring gives seal more rigidity -- Spring loaded primary seal lip -- Retained garter spring along with flexible sealing lip copes with high -- Additional dust lip shaft to bore misalignment / run-out -- The addition of a dust lip offers protection against low to medium dirt ingress 32 Products 33
Imperial (English) Heavy Duty Seal Elastomeric Compound Reference W 900 800 75 R1 - F1 / 29 special feature if applicable Compound Hardness Material Polymer Types Colour Temperature Range Select for.. Material designator Reference (IRHD) Designator
F1 Nitrile rubber (NBR) N-70-194 Black 70 -35 to +110°C General purpose N1
ROTARY PROFILE V-75-27 Black 75 -20 to +200°C F1 R1 High temperature performance; V-85-195 Black 85 -20 to +200°C high speed applications F2 WIDTH† Fluorocarbon V-75-50 Brown 75 -20 to +200°C F3 0.75” (FKM, A-type)
V-80-271 Black 80 -51 to +200°C Specialist ultra-low temperature FKM F4 SHAFT DIameter† 8.00” Specialist FKM terpolymer developed V-80-88 Black 80 -15 to +200°C F5 for use with bio-fuels
† High and very low temperature; high HOUSIng diameter Silicone (VMQ) S-80-78 Red 80 -55 to +230°C S1 9.00” eccentricity High and low temperature capabilities; Polyacrylate (ACM) A-70-196 Black 70 -30 to +175°C A1 good compatibility with engine oils
imperial designator Hydrogenated nitrile H-80-40 Black 80 -40 to +180°C Abrasion resistance; high temperatures H1 (HNBR)
†Dimension rounded down to 2 decimal places then multiplied by 100 General purpose / large diameter NBR / Fabric - Black - -35 to +110°C N location
High temperature / large diameter FKM / Fabric - Black - -2 to +200°C F Metric location Other materials are available on request. R 120 x160 x 10 R70 - N / S special feature if applicable
Material Special Features Designator N - NBR / FABRIC Feature Function Selection Designator
Stainless steel spring Rust and acid resistant spring - 29 PROFILE R70 - SINGLE LIP Only available on metal cased seals, this Red 2 Sealant paint sealant paint helpts to seal against any housing imperfections Blue 3 WIDTH Split (Available only on Split to allow in-situ installation - S 10mm R70 and R71)
HOUSING DIameter 160mm
shaft diameter 120mm
metric designator 34 Products 35
Solid Body PTFE Seal Styles Imperial (English) W 600 500 50 R60 - M / E2 Profile Profile Features Profile Advantages Applications PTFE DESIGNATOR R60 -- Solid machined steel carrier -- Press fit metal OD for precise location in housing -- Large motors -- PTFE sealing element -- PTFE lip to combat greater shaft speeds, elevated temperatures and -- Industrial gearboxes E2 aggressive media -- Compressors -- Available as non- standard sizes with no tooling requirement CARRIER - MATERIAL DESIGNATOR M
PROFILE R81 R61 -- Solid machined steel carrier -- Press fit metal OD for precise location in housing -- Unvented applications
-- PTFE sealing element -- PTFE lip to combat greater shaft speeds, elevated temperatures and -- Pumps † aggressive media WIDTH -- Large electric motors 0.50” -- Suitable for higher pressures -- Compressors -- Available as non- standard sizes with no tooling requirement SHAFT DIAMETER† 5.00”
HOUSIng diameter† R62 -- Solid machined steel carrier -- Press fit metal OD for precise location in housing -- Large fans 6.00” -- Dual PTFE sealing elements -- PTFE lip to combat greater shaft speeds, elevated temperatures and aggressive media -- Ideal for applications where lubrication is minimal -- Available as non- standard sizes with no tooling requirement imperial designator Metric R 80 x 100 x10 R62 - S / E1 †Dimension rounded down to 2 decimal places then multiplied by 100
R63 -- Solid machined steel carrier -- Press fit metal OD for precise location in housing -- Submerged gearboxes PTFE DESIGNATOR -- Axially opposed PTFE sealing -- PTFE lip to combat greater shaft speeds, elevated temperatures and and generators E1 elements aggressive media -- Industrial gearboxes -- Seal for separation of two media or where liquid or viscous contaminant is present CARRIER - MATERIAL DESIGNATOR -- Available as non- standard sizes with no tooling requirement S
PROFILE R62 Bespoke variants available to meet specific application requirements. WIDTH PTFE Grades 10mm
Material Compound Coefficient Temperature PTFE Colour Select for.. Composition Reference of Friction Range Designator Solid Body HOUSIng diameter 100mm Glass and MoS Low wear, high life, 2 PF-200 Grey 0.06 / 0.10 -160 to +290°C E1 Carrier Materials reinforced PTFE reduced friction Shell Material Graphite Grey / Soft shafts, reduced Metal SHAFT DIAMETER PF-201 0.06 / 0.10 -200 to +250°C E2 Designator reinforced PTFE Black friction 80mm Mild Steel M Carbon-fibre Grey / Low wear, improved PF-293 - -100 to +250°C E3 reinforced PTFE Black deformation resistance Stainless Steel S Other materials are available on request. METRIC designator 36 Products 37
GS Split Metal Face Seals
The GS split seal is used in applications GSFD - double lip flanged Metal face seals offer bearing protection and lubricant retention on any relatively slow where installation and replacement moving housing assembly. These seals are constructed from two identical, tapered mandates that the surrounding hardware metal rings, loaded using elastomer seals. cannot be fully disassembled. Such designs excel under extreme environments, where the exclusion of contaminants such as sand, rock, mud and water is imperative, providing a robust efficient solution, Features and Benefits with long service life and low maintenance. ▪▪ Easy installation and removal ▪▪ Suitable for very large diameters Features and Benefits ▪▪ Robust design ▪▪ Corrosion and abrasion resistant seal rings ▪▪ Flange design allowing accurate ▪▪ Special seal and load ring materials to suit application requirements positioning ▪▪ Self-centring to compensate for shaft eccentricity or misalignment ▪▪ Short axial length ▪▪ Cost savings from extended machinery life ▪▪ Easy to assemble and minimal maintenance Applications ▪▪ Broad operation temperature range from -40oC to 200oC ▪▪ Large gearboxes Applications ▪▪ Lifting gear ▪▪ Conveyor systems Metal Ring Grades Maximum working conditions ▪▪ Boring equipment X C F Shaft speed 12 m/s ▪▪ Stacker / Reclaimers Pressure 0.5 bar ▪▪ Heavy plant and grinders Process Cast Cast Forged Temperature 100 °C
GSF - single lip flanged Selection and Material Specification Cost High Medium Low
Ensuring the correct material composition is paramount. Pioneer Weston can work Medium/ Wear Life High Low with the customer to analyse application requirements and recommend the most High Imperial (English) Corrosion Low/ suitable materials. The main factors in ensuring the correct selection are: size, High Low Resistance Medium GS 475 337 75 - N temperature, speed, pressure and media. Abrassion Medium/ High Medium Risistance High mATERIAL N – NBR Metal Face Seals part number breakdown F – FKM
WIDTH† AM5084 - C - NB 60 0.750” HARDNESS SHORE A SHAFT DIameter† 3.375” MATERIAL FAMILY DESIGNATORS NBR - NITRITE HOUSIng diameter† 4.75” metal ring c-cast iron type gsF / GSFD size reference †Dimension rounded down to 2 decimal places then multiplied by 100
For further details http://www.pioneerweston.com
38 Products 39
Weston Mechanical Seals Balanced Mechanical Seal
If speed, pressure and the working environment are above the norm then a Weston Type CBAF bespoke sealing arrangement could be the solution. This seal design includes a flange as an integral part of the seal body which positions Features and provides the means of bolting the assembly to a faced housing.
▪▪ Extremely flat precision lapped faces pressed together creating a The bolt sizes, PCD’s and flange dimensions can all be varied to suit customer primary seal. One rotating with the shaft and one stationary within a housing requirements making the seal truly versatile. Secondary seal (elastomeric compound or gasket material) ▪▪ The seal unit is stationary and mates with a rotary seal face mounted on the shaft. ▪▪ Mechanical loading device (e.g. spring) ▪▪ Balanced and unbalanced options Benefits Contamination exclusion and media retention is achieved via precision lapped faces ▪▪ Features Benefits
▪▪ Maximum seal life is achieved by the balanced sealing arrangements controlling Short axial length Reduces bearing overhang closing force, reducing wear and temperature Multiple compression springs Ensures even face load distribution Balanced Accommodates high pressure ▪▪ Improved shock load resistance from balanced seal Variable seal face materials Lesser lubricated regimes possible arrangements preventing separation of mating faces Fully contained assembly Easily fitted, no loose parts ▪▪ Face arrangements can cope better than Labyrinth type Spigot Location fit ensures concentricity arrangements with higher pressures and more aggressive Flange gasket Ensures leak free joint environments Flange Accurately positions seal Alternative elastomers / metals Full range of environments ▪▪ Weston Mechanical Seals can be fully submerged without leakage Applications ▪▪ Industrial gearboxes Standard Materials Primary seal Resin filled carbon Secondary seal (O-ring) Fluoroelastomer Retaining ring Springsteel Common face combinations are as follows: Compression springs Stainless steel Other metal parts Mild steel Material Combinations Select for... Flange gasket Asbestos free gasket Good for grease/oil applications on large Phosphor Bronze Vs Stellite® diameters Hardened steel contact ring
Stellite® face Vs Carbon Good in aqueous solutions Maximum Working Conditions General and cost effective combination, not Carbon Vs Hardened Steel suitable for water sealing applications Sliding speed 45 m/s Silicon Carbide Vs Silicon Special arrangements at higher speeds / pressures Pressure 25 bar Carbide and more aggressive environments Temperature 160°C Phosphor Bronze Vs Steel Used for large diameter applications PV value 400 bar/m/sec
Also available in non-flanged configurations
40 Products 41
Non-Balanced Mechanical Seal Non-Balanced Mechanical Seal
Type MRX Type MRZ This seal design includes a flange as an integral part of the seal body which positions The MRZ seal design is very compact and suitable for use where a good supply of and provides the means of bolting the assembly to a faced housing. The dynamic lubrication is available to the seal face. The dynamic sealing surface can mate directly sealing surface can mate directly to hardened faces on the customer’s hardware or a to hardened faces on the customer’s hardware or a Pioneer Weston supplied Pioneer Weston supplied contact ring. contact ring.
The bolt sizes, PCD’s and flange dimensions can all be varied to suit customer The seal, unlike the MRX style, has no location spigot or flange but is located by requirements making the seal truly versatile. means of a press fit on the O.D.
The seal is non-balanced, suitable only for low pressure use and is fitted with a The seal is non-balanced, suitable only for low pressure use and is fitted with a diaphragm which acts essentially as a static seal. diaphragm which acts as a static seal.
The diaphragm excludes sludge and slurry from the sealing mechanism that could The diaphragm excludes sludge and slurry from the sealing mechanism that could cause “hang up”. cause “hang up”.
The seal unit is stationary and mates with a rotary seal face, mounted on the shaft. The seal unit is stationary and mates with a rotary seal face, mounted on the shaft.
Features Benefits Features Benefits
Short axial length Reduces bearing overhang Short axial length Reduces bearing overhang Multiple compression springs Ensures even face load distribution Multiple compression springs Ensures even face load distribution Diaphragm Prevents clogging Diaphragm Prevents clogging Fully contained assembly Easily fitted, no loose parts Fully contained assembly Easily fitted, no loose parts Spigot Location fit ensures concentricity Interference O.D. fit Leak free joint Flexibly mounted seal face Copes with increased misalignment Flexibly mounted seal face Copes with increased misalignment
Standard Materials Standard Materials Primary seal Phosphor bronze Primary seal Phosphor bronze Diaphragm Fabric reinforced elastomer Diaphragm Fibre reinforced elastomer Seal body Aluminium alloy Seal body Aluminium alloy Compression springs Stainless steel Compression springs Stainless steel Driving pins Stainless steel Driving pins Stainless steel Flange gasket Asbestos free gasket
Maximum Working Conditions Maximum Working Conditions
Sliding speed 45 m/s Sliding speed 45 m/s Pressure 0.30 bar Pressure 0.30 bar Temperature 150°C Temperature 150°C PV value 15 bar/m/sec PV value 15 bar/m/sec 42 Products 43
Face Type Seal Vulc-O-ring
Type FTS Product overview Most FTS designs tend to be employed in the steel industry for shaft sizes ranging ERIKS has developed a very successful method of producing O-rings from from 100mm to 1000mm where they are fitted to roll necks on tube mills and extruded cord to a very high technical standard. continuous casters, protecting the roll bearings from the ingress of hot iron The main benefits of Vulc-O-rings are: scales and water. ▪▪ Moulds are not required resulting in cost savings Features No upper diameter restrictions such as moulding FTS designs comprise an un-balanced sealing arrangement where the dynamic sealing ▪▪ member is energised by pocket springs, assisted by the differential pressure of the ▪▪ No flash lines are present lubricating media (typically grease). All designs feature flange location. The dynamic ▪▪ Can be used in standard housings sealing surface mates to a Pioneer Weston supplied contact ring. ▪▪ Short lead times Benefits Face type seal with phosphor bronze sealing member against a Stellite® faced Positive containment of grease. contact ring Metric Vulc-O-rings Materials Phosphor bronze v’s Stellite® faced steel 1999.35 x 5.7 FPM 75 514206 - vulc
compound REFERENCE 514206
Hardness 75 °IRHD
material family designator FPM
nominal cross section 5.70 mm
nominal inner diameter 1999.35 mm Vulc-O-ring Materials
Material Family Compound Elastomer Colour Hardness °IRHD Designator Reference
Nitrile (NBR) NBR 366185 Black 75
Fluorocarbon (FKM) A Type FPM 514206 Black 75
Fluorocarbon (FKM) GF Type FPM 514141 Black 75
Silicone (VMQ) SIL 714206 Red 75
Ethylene Propylene Diene Monomer EPDM 559303 Black 75 44 Products 45
Spring Energised Seal E - V - 1 - A - 1 - M - 136 - E431 Product overview Cantilever material code The Spring Energised (SE) seal pressure activated seal, with assisted energisation E431 provided by corrosion-resistant metal spring. When the seal is in situ, the spring is under compression and applies force to seal’s sealing lips. This creates a tight dash SIZE Reference barrier to the seal to prevent gas or fluids from leaking. 136
The spring also provides resiliency to compensate for seal wear, gland spring load misalignment or eccentricity. While spring force provides adequate force for L – Light M – Medium sealing at low pressure, at high pressure the system pressure augments the H – Hard spring force to provide an even tighter seal. SE seals are precision machined Spring Pitch from PTFE, filled PTFE and other high performance polymers. SE seals work Spring material consistently under a wide array of temperatures and pressures. ERIKS offers 301 Stainless Steel over 100 jacket materials, 8 spring materials, and 5 spring designs to meet your sealing needs. Lip Configuration Rod and Piston Seals: A – Standard Spring Designation B – I.D. Scraper C – O.D. Scraper Spring Type Material Code Material Description D – Double Scraper 1 301 Stainless Steel Face Seals: A – Standard 6 316 Stainless Steel Helical Cantilever H Hastelloy® C-276 Seal type E Elgiloy® Rod and Piston Seals: 1– Standard heel rod seal 2 302 Stainless Steel 2 – Standard heel piston seal 3 – Extended heel rod seal Spiral Pitch 6 316 Stainless Steel 4 – Extended heel piston seal H Hastelloy® C-276 Face Seals: 5 – Internal face seal 2 302 Stainless Steel 6 – External face seal Helical H Hastelloy® C-276
Spring Type PTFE Grades V – Cantilever Material Wear Factor S – Spiral pitch Description Application Reference (K) H – Helical
Glass and Molybdenum Disulphide Dynamic / Static, Medium duty cycles E431 15 reinforced PTFE Hardened metal running surfaces product line E E471 Graphite reinforced PTFE 10 Dynamic, Medium duty cycles
E462 Carbon/Graphite reinforced PTFE 15 Dynamic, Medium duty cycles
Dynamic / Static, Medium to high duty cycles, E491 Polyester reinforced PTFE 2 Minimum 45 HRc running surface
E282Z Carbon/Graphite/PPS reinforced PTFE 1 Dynamic / Static, High duty cycles, Hardened metal running surfaces 46 Products 47
O-ring
Product Overview Imperial O-rings The most common type of static seal is the flexible elastomer O-ring. O-rings BS 214 NBR 70 - 36624 provide an affordable seal that in most cases are simple to install and subject to correct material selection, give acceptable life between maintenance checks. compound REFERENCE 36624 Available in a variety of materials to suit every sealing application, fully moulded
O-rings are manufactured to several international sizes standards, including hardness BS1806, BS4518, AS568 and ISO 3601. Alternatively non-standard custom 70 °IRHD ±5 sizes, up to 2.5m (8ft) diameter can be produced to specific requirements. material family designator NBR Nitrile
dash size REFERENCE† 214
type O-ring Standard Compounds BS1806, AS-568, ISO3601-1
Material † Hardness Temperature Compound O-rings are supplied to ISO3601-1 class 2 tolerances unless otherwise specified. Elastomer Colour Select for.. Family (IRHD) Range Reference Designator
Standard compound with good compression set Nitrile rubber values. Medium acrylonitrile content for use with Black 70 -30 to +120°C 36624 NBR Metric O-rings (NBR) hydraulic oils, alcohols, water, air, fuels and many other fluids. 139.3 X 5.7 FPM 75 - 51414 General purpose compound with very low Fluorocarbon compression set characteristics at high Black 75 -20 to +200°C 51414 FPM (FKM, A-type) temperatures. Chemically resistant to oils, greases compound REFERENCE and fuels. 51414
Silicone hardness Red 70 -60 to +220°C High and very low temperature 714177 SIL (VMQ) 75 °IRHD ±5
Good ageing characteristics in ozone and weather material family designator Polychloroprene environments, along with abrasion and flex- ® Black 70 -35 to +110°C 32906 CR FPM Viton (CR, Neoprene) cracking resistance. Offers resistance to fluorine- based refrigerants. nominal cross section Standard compound offering excellent 5.70 mm Polyurethane Black 70 -40 to +95°C performance in dynamic applications due to the 900270 AU (AU) materials inherent excellent wear resistance. nominal inner diameter 139.30 mm General purpose compound offering improved Hydrogenated nitrile temperature resistance over NBR grades. Good Black 70 -30 to +180°C 88625 HNBR (HNBR) oil, coolant and hydrocarbon resistance, with †O-rings are supplied to ISO3601-1 class 2 tolerances unless otherwise specified. excellent abrasion resistance. 48 Products 49
Heavy Duty Hydraulic Seal Profiles Wear rings / Bearing strip Rod Seals
Features Advantages Features Advantages
Fabric -- High compressive -- High side load UR Reinforced strength -- Outstanding alignment -- Efficient sealing -- High compressive -- Pressure activated efficiency modulus -- Low axial length requirement -- Axially located within -- Low hysteresis -- High pressure velocity groove -- Long life -- Rotation prevention rating (PV) factor -- Rectangular heal -- Low friction -- Low wear rate -- Cantilever sealing lip PTFE Styles -- Low friction -- Energy efficient ELS -- Pressure activated -- Self lubricating -- Dry running possible -- Efficient sealing -- Axially located within efficiency -- Low wear -- Long life groove -- Low hysteresis -- Rectangular heal -- Rotation prevention -- Cantilever sealing lip -- Low friction -- Positive energisation by -- Low pressure sealing low modulus material -- Long life and high -- Wear resistant, high pressure operation modulus jacket
Piston seals Wipers / Scrapers Features Advantages Features Advantages WSF DOP -- Low compression set for -- Efficient sealing -- Elastomeric energiser -- Pressure activated extended operating life efficiency -- Compliant, wear resistant -- Axially located within -- High sealing efficiency -- Low hysteresis sealing element groove -- High pressure operation -- Low axial length -- High strength anti- -- Combined scraping and with large diametral requirement, ideal for extrusion rings sealing clearances secondary sealing -- Cantilever sealing lip -- Low friction
DWO -- Low compression set for WSB -- Elastomeric energiser extended operating life
-- Compliant, wear resistant -- High sealing efficiency -- Press-fit sealing element -- Metallic insert location -- High pressure operation -- Excellent contaminant -- Extended scraping lip -- High strength anti- with large diametral exclusion extrusion rings clearances -- Integral bearing features -- Reduced axial length requirements
*O-ring and hardware dimensional details are available at: http://oring-groove-wizard.eriks.co.uk/diametergrooves.aspx 50 Additional Products and Services 51
V-rings Lip Seals for use in Autoclaves
V-rings are an elastomer axial seal for shafts and bearings, Pipeline closures offer a unique set of challenges to seals installed onto the shaft or counterface. This type of seal has making very specific sealing solutions necessary: been used widely for many applications and has proved to be Application conditions: reliable and effective against dust, dirt, water, oil splash and A Type other media. ▪▪ 50, 300, 600, 900, 1200, 1500 ASA pressure ratings ▪▪ Wide operating temperature ranges starting from -46°C ▪▪ Diverse fluid media ▪▪ Over-compression of the seal during door closure L Type ▪▪ Very high clearance gaps ▪▪ Low closure force requirements ▪▪ Low pressure sealing requirements S Type ▪▪ Fast activation required to accommodate pressure RME Type fluctuations ▪▪ Pressure trapping in groove ▪▪ Large diameters ▪▪ Uneven clearance gaps due to effects of gravity on heavy horizontally opening doors ▪▪ Rapid Gas Decompression resistance Specially designed lip seals with or without reinforcing elements Carbon Segment Seals may be used to meet this challenging combination of application requirements. Careful design optimisation using Finite Element Typically used in series for high speed rotary applications. Analysis is often critical to success. Carbon segment seals are energised by a garter spring and act as a leakage control device, allowing the generation of differential pressures. Typical uses would include staged rotary Laminar Seals compressors and turbines. Laminar seals are a labyrinth arrangement of metallic rings that when installed in series form a passive non-contact seal that meters the flow of grease under a positive pressure. Sequential rings interfere on the inner and outer diameters and are available as single or multi-wind versions. 52 Additional Products and Services 53
Component Mechanical Seals Bellow Seals Taper Spring Seals Bi-directional and extremely versatile, these bellow seals are An extremely popular and effective designed with no loose parts that could be damaged during design featuring positive uni-directional installation, and feature static sealing that cannot cause shaft wear drive via the spring, these seals are or fretting. Suitable for a wide range of applications, such as pumps, available in a wide range of sizes and mixers, agitators and compressors, they can also be used where a styles, and are used in many applications, previous seal has caused shaft damage. including pumps, mixers, agitators and compressors. Wide range of metric and imperial sizes ▪▪ All designs feature O-ring sealing on the For shafts from 8mm to 100mm ▪▪ shaft and positive spring drive. ▪▪ Faces: carbon, ceramic and silicon carbide ▪▪ Wide range of metric sizes ▪▪ For shafts from 10mm to 100mm ▪▪ Faces: carbon, ceramic, stainless steel and silicon carbide
Parallel Spring Seals Widely used as the standard upgrade from packing to Stationary Components mechanical seals, parallel spring seals are the mainstay for many Generally O-ring mounted stationary components, or seats, are industries. Using a rubber bellows to seal against the shaft and available in various materials to suit application requirements. provide drive to the face, they are suitable for use in applications ▪▪ Some designs feature a pin groove, providing positive drive such as water, food and chemical processing. Designs are also to the seal face. It is important to consider the application available with a balanced configuration to reduce heat and conditions and condition of the equipment when selecting a friction, extending seal life. stationary component ▪▪ Wide range of metric and imperial sizes ▪▪ The stationary component illustrated represents those ▪▪ For shafts from 10mm to 75mm commonly found in use today ▪▪ Faces: carbon, ceramic and silicon carbide 54 55
Other Brochures in this Series
Chemical Process Industry Oil and Gas Applications Agriculture and Earth Moving Applications Automotive and Transport Applications
ERIKS Sealing Technology ERIKS Sealing Technology ERIKS Sealing Technology Engineered Seals for Agriculture and Earth Moving Applications Polymer Sealing Solutions for the Chemical Process Industry ERIKS Sealing Technology Polymer Components for Automotive and Transportation Engineered Polymer Solutions for Oil & Gas Applications
Kitting and Bagging
ERIKS Sealing Technology can provide bespoke kits and aftermarket bagging of individual parts to service your industry requirements.
Our specially tailored kits are assembled and packaged with clearly marked part numbering and can be supplied with our own brand, or alternatively, customer specific branding.
We are able to offer kits that include a variety of our core product, ranging from Rotary Seals and O-rings to Hydraulic Seals, Washers and Gaskets. ERIKS Sealing Technology
ERIKS Sealing Technology offers a comprehensive range of high performance sealing products, supported by a world-class technical and logistical service to deliver the right seal on time to your critical applications.
ERIKS Sealing Technology ERIKS Sealing Technology Unit 5, Yorks Park 206 Cavendish Place Blowers Green Road Birchwood Park Dudley Warrington West Midlands Cheshire DY2 8UL WA3 6WU
Tel 0845 603 1221 Tel 01925 853000 Fax 0845 603 1441 Fax 01925 853030 www.eriks.co.uk
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