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Although we have selected the valve for its reli-
ability and quality, inspection and maintenance of
this valve must be done regularly. It is very easy to
disassemble and inspect. (A rebuild kit for this valve
is Part #525-330).
Gas Flow To Air Train
Main Gas Supply
Gas Flow To Regulator
WARNING
The one way valve must be tested daily, prior
to the commencement of diving operations.
Failure of one way valve could cause serious
injury or death. Follow the procedures for
testing the valve in this manual.
The emergency gas comes from a tank of compressed
gas worn by the diver. It enters the system through
the Emergency Gas valve when the diver turns the
control knob on. The flow then enters the side block.
Both sources of gas flow through the same passage in
the side block body to two exits. One exit is always
open to supply gas to the demand regulator assembly.
The other exit is to the defogger valve (free-flow
valve) assembly.
The diver controls the flow of gas through the defog-
ger system with the control knob. The gas enters the
helmet and flows through the air train which directs
the gas onto the face port to help eliminate or clear
fogging of the faceplate that forms from the diver's
warm breath.
The flow continues out through the water dump (hel-
met exhaust) valve, or into the oral nasal by means of
the valve, then into the regulator and out through the
regulator exhaust to the Quad-Valve™ whiskers. The
diver can breathe from this flow of gas if the demand
regulator malfunctions.
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
Auxiliary L.P. Port
Returning to the side block assembly: the other pas-
sage for gas is to the demand regulator. It goes to a
bent tube assembly that connects to the inlet nipple of
the demand regulator. The flow of gas in the demand
regulator assembly is controlled by the inlet valve
that supplies gas to the diver on inhalation "demand"
only, and shuts off during the exhalation cycle.
The SuperFlow
demand regulator senses the start
®
of the divers inhalation and opens the inlet valve,
matching the diver's need. The regulator continues
to match the diver's inhalation as the rate increases,
peaks, then ebbs and stops.
When the diver exhales, the supply gas stays off
as the exhalation gas flows through the regulator
body, out the regulator exhaust valve, through the
Quad-Valve™ whiskers, and out into the water. The
whiskers deflect the exhaust bubbles away from the
face port to keep the diver's view clear.
All KMDSI Helmets and Band Masks are equipped
with a multi-turn demand regulator adjustment knob.
This adjustment knob allows the diver to make cor-
rections to compensate for a wide range of incoming
gas supply pressures. See the section in this chapter
regarding appropriate supply pressures.
The SuperFlow
®
SuperLite
Demand Regulator
®
17B
15
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