Gasmizer Manual - Submarine Manufacturing and Products Ltd

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March 09 4.2 Layout and Operation - SAECO Valve 4.2.1 The Supply Actuated Exhaust Cut-off Valve is a safety device, which closes off the exhaust suction from the diver if his breathing gas supply pressure drops below a predetermined value. Its function is illustrated by the diagram below. 4.2.2 In the open position, diver gas supply pressure exerts a greater force on the plunger body than the springs, so the valve is held open. Fig 2 SAECO Valve Open OM002 Rev 5 Page 22 of 168 Chap 4
March 2009 4.2.3 If the diver gas supply pressure falls below a predetermined value, the springs will force the piston closed. An indicator is provided to show the status of the valve. Fig 3 SAECO Valve Closed 4.2.4 The SAECO valve should be adjusted so that it is fully closed when the gas supply pressure falls to 3.4 bar (50 psi) when bench tested on the surface. In practice the SAECO valve will close fully at higher supply pressures as a result of the negative pressure in the exhaust line. The adjustment procedure is described in Section 4.3. 4.3 Water Trap 4.3.1 The function of the water trap is to collect any free water, which may have entered the exhaust circuit. The water trap assembly is described in the diagrams overleaf. 4.3.2 The water trap consists of an acrylic housing, a negative pressure gauge, overpressure relief valve, negative pressure relief valve, drain valve and isolating valve. The acrylic body should be mounted in a prominent position in the bell, giving the bellman an unobstructed view. The isolation valve enables the lower part of the water trap to be isolated from the upper section and vented by one simple operation, allowing the water trap to be drained without interrupting gas recovery. Chap 4 Page 23 of 168 OM002 Rev 5
Page 1 and 2: Rev 5 OPERATING AND MAINTENANCE MAN
Page 3 and 4: March 2009 Approval Sheet DIVEX DOC
Page 5 and 6: March 2009 Table of Contents CHAPTE
Page 7 and 8: March 2009 Disclaimer NOTE Although
Page 9 and 10: March 2009 CHAPTER 1 INTRODUCTION C
Page 11 and 12: March 2009 Fig 1 Layout and Operati
Page 13 and 14: March 2009 setting of the regulator
Page 15 and 16: March 2009 Fig 5 HP Gas System Sche
Page 17 and 18: March 2009 at an early stage such t
Page 19 and 20: March 2009 1.9 Safety and Gas Quali
Page 21 and 22: March 2009 CHAPTER 2 SYSTEM INTERCO
Page 23 and 24: March 2009 Fig 2 Electric Gasmizer
Page 25 and 26: March 2009 CHAPTER 3 DIVER EQUIPMEN
Page 27 and 28: March 2009 CHAPTER 4 BELL EQUIPMENT
Page 29: March 2009 4.1.2 The overall layout
Page 33 and 34: March 2009 4.3.4 The negative press
Page 35 and 36: March 2009 accordingly. This is acc
Page 37 and 38: March 2009 4.8 Water Trap Inspectio
Page 39 and 40: March 2009 Fig 6 Pipework Schematic
Page 41 and 42: March 2009 Fig 8 Water Trap Assembl
Page 43 and 44: March 2009 Fig 10 SAECO Valve Assem
Page 45 and 46: March 2009 Fig 12 Outward Relief Va
Page 47 and 48: March 2009 Fig 14 Inward Relief Val
Page 49 and 50: March 2009 Fig 16 Float/Check Valve
Page 51 and 52: March 2009 CHAPTER 5 REPROCESSING U
Page 53 and 54: March 2009 Filters/Moisture Separat
Page 55 and 56: March 2009 range of trace contamina
Page 57 and 58: March 2009 Fig 4 Canister Assembly
Page 59 and 60: March 2009 Fig 6 Back pressure Regu
Page 61 and 62: March 2009 Fig 8 Receiver Adapter A
Page 63 and 64: March 2009 Fig 10 Flow Switch Assem
Page 65 and 66: March 2009 Fig 12 Pressure Regulato
Page 67 and 68: March 2009 CHAPTER 6 CONTROL CONSOL
Page 69 and 70: March 2009 sample is monitored and,
Page 71 and 72: March 2009 6.5 Make-Up Panel 11.The
Page 73 and 74: March 2009 The tools required for c
Page 75 and 76: March 2009 When performing necessar
Page 77 and 78: March 2009 Fig 6 Flow Switch Assemb
Page 79 and 80: March 2009 Fig 8 RP202 Regulator, P
Page 81 and 82:
March 2009 CHAPTER 7 VOLUME TANK CO
Page 83 and 84:
March 2009 CHAPTER 8 SYSTEM INSTALL
Page 85 and 86:
March 2009 8.2.4 Recommended Umbili
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March 2009 8.4 GASMIZER BELL CARD 8
Page 89 and 90:
March 2009 8.5 GASMIZER BELL CARD -
Page 91 and 92:
March 2009 8.5.4 Shutdown Procedure
Page 93 and 94:
March 2009 8.5.7 Gasmizer Response
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March 2009 PARTIAL PRESSURE OXYGEN
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March 2009 8.6 REGULATOR SETTING GU
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March 2009 8.7 REGULATOR SETTING GU
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March 2009 8.8 System Operation at
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March 2009 Remedy: Diving may be co
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March 2009 CHAPTER 9 GAS BOOSTER CO
Page 107 and 108:
March 2009 Dive Depth (m) Inlet Pre
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March 2009 9.1.4 Main Gas Circuit F
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March 2009 9.2 Booster Starter Cont
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March 2009 Period Every 2000 Hours
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March 2009 Approximate full load cu
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March 2009 Servicing Disassembly: 1
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March 2009 9.9.2 2 nd Stage Cylinde
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March 2009 Guide Ring Axial Thickne
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March 2009 Re-assembly: 1. Assemble
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March 2009 Disassembly: (Having dis
Page 127 and 128:
March 2009 9.11 Relief Valves Maint
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March 2009 Fig 6 K651/454 Compresso
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March 2009 K651/454 Compressor Part
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March 2009 Part No. Description Qty
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March 2009 A.i 4 1/4” Dia Cylinde
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March 2009 A.ii 2 5/8” Dia Cylind
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March 2009 Fig 9 2 5/8” Dia Cylin
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March 2009 Fig 10 Crankcase Assembl
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March 2009 A.v Suction Valve BU6024
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March 2009 A.vii Unloader Valve Ass
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March 2009 Fig 14 Cooler Water Pump
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March 2009 B.i Cooler (After cooler
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March 2009 APPENDIX D - AUXILIARY E
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March 2009 Part No. Description Qty
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March 2009 APPENDIX F - PRESSURE CO
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March 2009 Fig 20 Stage 2 - Relief
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March 2009 Chap 9 Page 151 of 168 O
Page 161 and 162:
March 2009 Dive Depth (m) Pressure
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March 2009 Fig 23 Belt Drive Tensio
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March 2009 168 CHAPTER 10 SPARES LI
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March 2009 168 Part Assembly - C107
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March 2009 168 Part Assembly - C108
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March 2009 168 Part No. Description
Page 173 and 174:
March 2009 168 Post 2004 (Divex Bui
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March 2009 168 VB602 VALVE,BALL, 3/
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