Kirby 37 appendix SuperFlow Stainless Balanced Regulator, 102

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Kirby Morgan 37 & 57

7.12SuperFlow 450

Stainless Balanced Regulator

7.12.1 General

The SuperFlow 450 is another high performance regulator from Kirby Morgan. This is an exception- ally compact, but high performance regulator.

7.12.1SuperFlow 450 Demand RegulatorTest for Correct Adjustment, Fully Assembled

To maintain optimum performance of the demand regulator, it should be checked for proper function and adjustment prior to commencement of diving each diving day, in accordance with the KMDSI Daily Set Up and Functional Checklist. See the Dive Lab website for the latest checklists at www.divelab. com.

Check the regulator for adjustment and proper func- tion with the assembly complete, and supplied with a breathing gas supply pressure of 135 to 150 p.s.i.g.

NOTE: 135 to 150 p.s.i.g. over ambient is the stan- dard supply pressure to be used when adjusting all KMDSI helmets and band-mask equipped with the SuperFlow 450 regulator.

NOTE: When storing the helmet for any length of time, ensure that the Flex Knob (190) is turned “out” fully counterclockwise to avoid stressing the bias springs. This will prolong the life of both the inlet valve, seat, and bias spring.

1)Rotate the Flex Knob in, towards the regulator body, until a clicking can be heard with each revo- lution of the knob. This is an audible indication the adjustment spring tension is as tight as it will get. The adjustment knob will never bottom out or stop turning in this direction, so listen carefully for this indicating click.

2)Ensure the supply pressure is connected and prop- erly adjusted to 135 to 150 p.s.i.g.

3)Turn on the gas supply.

4)Rotate the Flex Knob out counterclockwise slowly, three full turns.

5)Lightly depress the purge button several times and ensure the gas flow is stable.

6)Push in gently on the cover of the regulator. There should be 1/4” free travel in the button before gas flow starts. When the button is fully depressed, a strong surge of gas must be heard.

7)If the purge button travels less than 1/4 inch or greater than 1/4 inch before free flow is heard, the demand regulator requires internal adjustment, per this chapter.

102	© Copyright 1970-2008 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 080508001

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Contents Kirby Morgan 37 IntroductionOne Way Valve Tighten to 150 inch lbs Newton Meters with a torque wrench Correct assembly order of the one way valveGeneral Side Block AssemblySide Block Assembly Removal Separating the Side Block Assembly from the Helmet ShellAir Train Gasket Thin putty knife helps to remove the side blockComponents of the Side Block & Air Train To suffocation Could lead to drowningDiver cannot use the free flow system as Source of breathing air. This could leadDefogger Valve Disassembly of the Defogger ValveCleaning and Lubricating Clean all the metal parts to remove saltsReassembly of the Defogger Valve Side Block assembly and it’s associated partsRemove the valve stem Emergency Valve AssemblyValve Body Valve Stem Washer Packing nut Reassembly of Emergency ValvePacking Knob Lock nut Spring Leak Testing the EGS Valve Inspection of Bent Tube Assembly Bent Tube AssemblyRemoval of the Bent Tube Assembly Kirby Morgan 37 Installation Bent Tube Assembly Tool Kit with pouch SuperFlow Demand RegulatorGeneral Regulator Information Remove the demand regulator clamp Screw the regulator adjustment knob out for removalInspect the washer and o-ring Reassembly of the SuperFlow 350 Regulator Adjustment SystemShake out the spacer, spring set, and piston Regulator mount nut must be removed to remove the regulator SuperFlow 350 Demand Regulator Removal from HelmetDemand Regulator Kirby Morgan 37 Disassembly of the SuperFlowSuperFlow 350 regulator assembly Castle Wrench and inlet valve On the silicone sealant tube and Material Kirby Morgan 37 Inspection of SuperFlowDemand Regulator Parts Use silicone sealantPage Valve seat Adjustment end of the SuperFlow 350 regulator Install the retaining pin in the adjustment knobKirby Morgan 37 Test the response of the purge button Kirby Morgan 37 Tuning the SuperFlow 350 RegulatorUse the disk end of the Kmdsi wrench to bend the lever down Page Press the cover over the diaphragm Inspection of Oral/Nasal Oral/NasalOral Nasal General Information Oral/Nasal RemovalKirby Morgan 37 Oral/Nasal Replacement Exploded view of the Quad-Valve exhaust system Quad-Valve Exhaust AssemblyQuad-Valve Assembly Removal Page Whiskers must be aligned properly on the exhaust main body SuperFlow Regulator Exhaust Valve ReplacementQuad-Valve Assembly Installation Water Dump Valve Removal Water Dump Valve ReplacementWater Dump Exhaust Body Water Dump Valve Body Removal101 Reinstalling the Quad-Valve Exhaust Assembly102 SuperFlow Stainless Balanced Regulator103 Kirby Morgan 37 Adjusting the SuperFlowRemove the bent tube and the bent tube adapter 104 105 Bent tube adapterExploded view of SuperFlow 450 regulator 106 107 108 Install the o-ring in the bent tube adapter109 Kirby Morgan 37 SuperFlow 450 Regulator RemovalBe sure to remove and set aside the whisker spacers 110 Kirby Morgan 37 SuperFlow 450 DisassemblySuperFlow 450 flex knob assembly 111 RingDetails of the SuperFlow 450 main tube and associated parts Exhaust valve insert Retainer ring Kirby Morgan 37 AssemblySuperFlow 450 Regulator Regulator Body113 Install the inlet valve in the main tube114 115 Tighten the cover hand tightMake sure the lock clip fully engages the packing nut 116 Kirby Morgan 37 SuperFlow 450 Regulator Installation117