116
© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318002
Chapter 7 - Overpressure Relief / Bleed Valve Overhaul Procedures
Kirby Morgan
®
37SS
Make sure the whisker spacers are in position before
tightening the screws that secure the whiskers.
The whiskers are fastened to the face port using two screws
on each side.
Only use a torque screwdriver to tighten the screws that
secure the whiskers to the face port.
7.17 Overpressure Relief / Bleed Valve
Overhaul Procedures
7.17.1 Overpressure Relief Valve
The relief/bleed valve should
always
be used on all
Emergency Gas Supply (EGS/bail-out) first stage
regulators to prevent the hose from rupturing in
the event the first stage pressure creeps. The Kirby
Morgan relief valve body is made of stainless steel.
Overpressure
Relief Valve
Seat
Spring
Adjustment
Screw
O-ring
Over Pressure Relief Valve Component breakdown
The basic components last a long time but the valve
should be disassembled, cleaned, and inspected at
least once a year or whenever it fails testing. The
valve should be tested monthly. Cleaning and over
-
haul is easily performed using a nylon toothbrush and
a
50/50
solution of vinegar and fresh water. Cleaning
for 15 minutes in an ultrasonic sink, if available, with
the
50/50
vinegar solution is highly recommended.
