SF350-12
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Cleaning SuperFlow® 350 Regulator Parts
SuperFlow® 350 Regulator
pressing with a thumb. The exhaust valve seat-
ing area should be free of dirt and corrosion to
ensure the valve can lay flat and seal properly.
NEVER lubricate the valve. Lubricating the
valve will cause dirt and particles to stick to the
valve and seat causing poor performance and wet
breathing.
2) Inlet valve: Check the condition of the rubber
seat for wear and/or deep grooves. If the orange
silicone seat surface is stained to a dark color,
this is an indication the air supply that was be-
ing used was dirty,
Check the condition of the inlet nipple. The in-
let nipple knife-edge must be in good condition,
free of nicks, chipped chrome or any damage. If
the inlet nipple knife-edge has nicks or missing
chrome, the inlet nipple as well as the soft seat
will require replacement. During annual over-
haul the inlet valve soft seat should be replaced.
3) Inlet Valve Soft Seat Replacement: To
replace the soft seat use a small screwdriver or
O-ring pick to pry the soft seat from the chrome
plated brass valve body. Using a sewing needle
or toothpick clean all old silicone sealant from
the vent hole in the bottom of the cup area, and
from the cupped area itself. Note: Replace the en-
tire inlet valve if any chrome is missing or if the
shaft is bent or thread damage is present.
4) Dab a small amount of silicone adhesive Dow
Corning
®
732 or equivalent on one side of the new
soft seat then press the seat into the cup area of
the inlet valve assembly then using a clean cloth,
wipe all excess silicone from the valve assembly.
It will take approximately 12 hours for full cure
of the silicone.
NOTE: After the silicone has completely cured,
double check the soft seat surface for excess
cured silicone & completely clean it off.
B
WARNING
Use silicone seal-
ant in a well venti-
lated area. Do not
breathe the fumes
from uncured sili-
cone sealant. These
fumes are danger-
ous and can cause
unconsciousness.
They can also cause
long term damage
to body tissue. Read
and follow all pre-
cautions listed on
the silicone sealant
tube and Material
Safety Data Sheet.
5) Diaphragm: Check to determine if rubber
has separated from the metal disc. Hold the di-
aphragm to a bright white light, while aggres-
sively pulling and stretching to reveal damage,
deterioration, or holes.
Diaphragms showing any indication of damage
should be replaced. The diaphragm should al-
ways be replaced during scheduled annual over-
hauls.
6) Inspect the whisker components. Replace the
whisker if it shows signs of wear, aging or any
damage.
For Helmets That May Be Upgradable To
A Quad-Valve Exhaust
The current whiskers of the Quad Valve™ are
much more rugged than the older latex double
exhaust system, will give a much longer service
life and provide better breathing performance
at depth. Older, latex double exhaust systems
should be replaced with the current Quad Valve™
exhaust system, or the Tri-Valve for the SL 27.
1.6 Cleaning SuperFlow
®
350
Regulator Parts
1.6.1 Precautions for Cleaning
The inlet valve of the SuperFlow
®
350 requires
frequent cleaning and lubrication due to the ex-
acting tolerances of the inlet valve mechanism.
Once familiar with this procedure the task can
be accomplished in about 10-15 minutes. The fol-
