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SLT-60 Surface-Supplied Diving System

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SLT-60 Surface-Supplied Diving System SLT-60 Surface-supplied diving system Ordering information SLT60 complete set 2.80.3530 The SLT-60 is a surface supplied diving system designed to Compliance simultaneously support two divers conducting heavy work The Surface-supplied diving system SLT 60 has been manu- to a depth up to 60 msw, carrying out all manner of un- factured in accordance with the German standard DIN 58642 derwater work including conducting surveys, maintenance, for hose supplied diving apparatus as well as the 1993/2000 defect rectification, cutting and welding etc. The system EN 250 HSE & NPD regulations for Diving equipment. It also may be used for all underwater maintenance work and complies fully with the new European standard for Surface may be used for diving in both polluted and cold waters. Demand Diving Equipment. Decompression underwater Divers would normally use breathing air for most diving operations. Switching over from air to oxygen for decom- pression purposes during ascent is manually possible by means of the air/oxygen selection valves. A safety blocking system prevents the operator from switching to oxygen be- fore the diver has ascended to a safe depth of seven me- tres. Should the diver attempt to descend while breathing oxy- gen, the supply of oxygen is automatically switched over to air once the diver reaches the 9m mark. This is a safety fea- ture working against accidentally supplying the diver with oxygen should he descend to an unsafe depth. V-A Major components 10. Bailout Set. 1. The DCP with Gas supply System. 11. Demand Diving helmets. 2. Oxygen Supply System. 12. Diver’s Dry suits. 3. Air Supply System. 4. Communication System. For a complete list of the contents, please ask IHC Hytech. 5. Depth Monitoring System. 6. Inflator System. 7. Diver’s Umbilical (100m). 8. Diver’s Safety Harness. 9. Buoyancy Aid. 1. SLT60 Dive Control Panel 2. Oxygen supply system The DCP is built into a rugged transport case made from hard The DCP is equipped with an independent low-pressure oxy- plastic material. The case is fitted with two lifting handles gen supply line located above the two main supply lines on in either end and is supplied with a wall mounting bracket. the lower panel. The oxygen supply line is connected to each All of the components are mounted onto the stainless steel diver’s supply line at the Gas Selection Valves. These valves front plates, which are marked with flow lines and labels. The offer both automatic and manual functions. A High Pressure gas supply lines are colour-coded and are configured to allow (HP) regulator, fitted to a HP (200 bar) oxygen cylinder, is con- each line to be used separately and independently for each nected to the DCP by means of a flexible low pressure (LP) diver. hose (5m) and quick fit couplings. Oxygen is supplied to the panel at a pressure of 11.5 bar. The front plates can be removed for inspection and main- tenance by loosening the securing bolts located around the edges of the plates. The lid of the control panel is secured with wires on either side to keep it open during operation. The SLT 60 DCP is designed for two divers. Two flexible high- pressure hoses fitted with DIN 200 bar connections are -con nected to the high-pressure inlets. Each diver has his own independent supply line incor- porating a high performance twostage pressure re- ducing system. The 2 main supply lines are intercon- nected at a point by means of a crossover line fitted with a 90° quarter turn ball valve. The crossover valve is situated at the intermediate pressure level (24 bar). SLT60 DCP Dive control panel 3. Air supply system 6. Inflator system The two high pressure (HP) supply lines lead from the HP The SLT 60 is equipped with a separate inflator system, which inlets to two fixed pressure reducers, which are factory ad- supplies both the dry suit inflator valve and the buoyancy aid justed to 24 bar. A HP gauge displays the Inlet pressure. Gas inflator valve. The inflator hose in the diver’s umbilical is -at flows past a non-return valve and to a line connecting the tached to a quick coupling in the DCP, which has its own se- two supply lines. The line is fitted with a shut-off (crossover) parate shut-off valve. valve. The air supplied from either one of the two supply li- nes is adequate to supply two divers working at a maximum At the diver end of the Inflator hose, the hose terminates in depth of 60 m. a ‘Y-Piece’ to which the short inflator hoses for the Buoyancy Aid and the Dry-Suit are attached. Accordingly the diver can Two HP and 2 Medium Pressure (MP) gauges show the va- fill both devices with air from the surface supply. lues of the incoming air supply sources. The reduced pres- sure supply lines lead to the two ‘Depth tracking’ pressure 7. Diver umbilicals reducers.. The diver’s umbilical provides the divers with life support and communication systems as well as essential diver services 4. Diver communication system such as power and communication. The twisted rope-play The SLT 60 2-Diver diverphone is a stationary unit which is structure of the umbilical gives the umbilical great tensional built into the lid of the control panel. The diverphone is sui- strength and does away with the need for additional safety table for full duplex communications and is fitted with mili- ropes. tary style connectors. The supply umbilicals are 100 m in length which is adequate Both divers and tenders have their own separate volume con- for most diving operations down to 60 meters where slack trols for independent operation. A connection switch allows and spare length is required on the surface. both divers and their tenders to talk freely with each other on an open system should the need arise. The SLT 60 Diverphone has a built in rechargeable 12-volt battery and charger unit. Voltage selection is fully automatic. 5. Depth monitoring system The depth of each diver can be read on the two precision depth gauges. (See next figure). The depth gauge is connec- ted to the depth measuring hose in the diver’s umbilical, which ends in the divers chest area. The water pressure, equivalent to the diver’s depth, is dis- The SLT 60 umbilical is a twisted rope-play unit consisting of played on the gauge. Small bore hoses connect the depth four components: monitoring hoses to the depth tracking reducers and the oxy- • The main air supply hose (3/8”) gen limitation valve in the oxygen supply line. The operation • The suit inflation hose (1/4”) of the depth monitoring system is automatic once the diver • The depth measuring hose (1/4”) enters the water. The minimum flow rate is adjusted for a • Combined video decent rate of 18 m / min. All components are salt water-resistant, have a polyurethane (PU) outer jacket and are colour coded. The twisted rope-play structure of this umbilical eliminates the necessity to tape together all the various cables and hoses as well as gi- ving the umbilical a tidy appearance. Depth gauges 8. Divers safety harness number of other components and accessories such as the The emergency air cylinders (Bailout Set) and the diver’s communications system, the free flow valve, the welding vi- umbilical are attached to the divers safety harness, which is sor, video cameras and underwater lamp units. made of salt water resistant materials. The harness is built in a jacket style and has a single waist strap fitted with a buck- 12. Diving suits le, three crutch straps and two adjustable shoulder straps. The standard SLT 60 dry suit (Viking Pro-HD) is fitted with a neoprene rubber neck seal, a dry yoke as well as suit inflation and exhaust valves. The suit comes with a standard Dry- Ring cuff system for use with dry rubber gloves. The neck ring is donned separately and is not attached to the dry suit. A dry yoke suit is especially useful when diving in cold or contami- nated waters. Air is fed to the dry suit via the suit inflation hose to compensate for a loss of buoyancy resulting from in- creasing depth. The air also provides an air cushion to keep the diver warm and eliminate squeezing by the suit. Harness Buoyancy aid 9. Buoyancy aid The diver’s safety harness is also fitted with a Buoyancy Aid. It is designed to assist the diver during ascent from great depths without him having to overexert himself. The Buoyan- cy Aid has 20.4 kg lift capacity and is connected to the suit in- flation hose supply system in the umbilical. A ‘Y’- Piece splits the gas supply to both the diver’s suit inflation valve and the Buoyancy Aid. 10. Bailout set The bailout set (emergency air system) consists of two 4-li- ter - 200 bar steel air cylinders. The bailout set is carried on the diver’s back and is attached to the safety harness. An im- mediate supply of breathing air available to the diver in the SLT60 used in desert conditions event of a failure of the umbilical supply. The Bailout Set is mounted in a heavy-duty fibre glass hou- sing which is attached to the diver’s harness by means of a stainless steel Quick-snap mounting bracket. The cylinders are located with the valves at the bottom (back mounted) where the diver can easily reach the valves on either side.
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