Kirby Morgan SuperFlow 350 Regulator User manual
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-1
SuperFlow® 350 Regulator SuperFlow® 350 Regulator & Exhaust System Post Dive Cleaning & Sanitizing
SuperFlow®350 Regulator
Contents
SF350-1 1.1 SuperFlow®350 Regulator
& Exhaust System Post Dive
Cleaning & Sanitizing
SF350-1 1.1.1 Post Dive Disassembly
SF350-3 1.1.2 Sanitizing
SF350-3 1.1.3 Post Dive Reassembly
SF350-4 1.1.4 Special Regulator Tools
for SuperFlow®350
SF350-4 1.2 SuperFlow®350 Demand
Regulator
SF350-4 1.2.1 General Regulator
Information
SF350-4 1.2.2 SuperFlow®350 Demand
Regulator Test for Correct
Adjustment, Fully Assembled
SF350-5 1.2.3 Inspection of
SuperFlow®350 Regulator
Body Interior
SF350-6 1.2.4 SuperFlow®350 Demand
Regulator Bias Adjustment
Servicing, Demand Regulator
on the Helmet
SF350-8 1.2.5 Reassembly of the
SuperFlow®350 Regulator
Adjustment System
SF350-8 1.3 Regulator & Exhaust
System Overhaul
SF350-8 1.3.1 SuperFlow®350
Demand Regulator Removal
from Helmet or Mask
SF350-9 1.4 SuperFlow®350 Regulator
Disassembly
SF350-11 1.5 Inspection of SuperFlow®
350 Demand Regulator Parts
SF350-12 1.6 Cleaning SuperFlow®350
Regulator Parts
SF350-12 1.6.1 Precautions for Cleaning
SF350-13 1.6.2 Cleaning Instructions
SF350-13 1.7 Reassembly of the
SuperFlow®350 Demand
Regulator
SF350-19 1.7.1 Tuning the SuperFlow®
350 Regulator
SF350-21 1.7.2 SuperFlow®350
Regulator Steady Flows
When Pressured Up: Special
Tools Used (No P/N 525-620
KMDSI Tool Kit)
SF350-23 1.7.3 SuperFlow®350
Regulator Exhaust Valve
Replacement
1.1 SuperFlow®350 Regulator &
Exhaust System Post Dive Cleaning
& Sanitizing
Purpose
This procedure should be performed at comple-
tion of diving operations and/or whenever the
helmet is to be used by another diver.
Tools required:
• ¼inch Flat Blade Attachment on Torque
Screwdriver
• Small Phillips Screwdriver
• Clean Wiping Rag
• Nylon Tooth Brush
• Spray Bottle with Mild Dish Soap Solution
• Spray Bottle with Antiseptic Cleaner
1.1.1 Post Dive Disassembly
1) Remove the demand regulator clamp by re-
moving the clamp screw. Lift off the regulator
cover and diaphragm.
SF350-2 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
SuperFlow® 350 Regulator & Exhaust System Post Dive Cleaning & Sanitizing SuperFlow® 350 Regulator
Remove the regulator cover to inspect the diaphragm.
2) Remove the nose clearing device by loosening
the packing nut removing the knurled knob and
sliding the shaft out through the oral nasal.
3) Remove the microphone from the oral nasal
mask then remove the oral nasal mask from the
helmet.
4) Remove the oral nasal valve and body. Remove the microphone so you can
remove the oral nasal mask.
5) Using a small Phillips screwdriver, carefully
remove the two clamps, screws & nuts then pull
the whiskers away from the water dump body.
The exhaust valve inserts are recessed on one side to accept the exhaust valves so they sit ush in the inserts.
The exhaust valves must be installed properly in the inserts or they will not seal or perform properly.
Correct INCORRECT
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-3
SuperFlow® 350 Regulator SuperFlow® 350 Regulator & Exhaust System Post Dive Cleaning & Sanitizing
Remove the valve seats and valves. Remove the
tie wrap holding the water dump components in
place, then remove the valve, seat and sealing O-
ring.
6) Using the soap solution, wet the exhaust
valves, water dump valve, the valve seats and all
surfaces exposed to the diver’s exhaled breath.
The water dump valve can be difcult to see so
take extra care to be sure it is cleaned. Agitate
surfaces with the rag and/or brush, then rinse
with freshwater.
Make sure the solution ows through the rear of
the regulator where the oral nasal mask attaches
to the mount nut. This will help to ensure the ex-
haust valve in the regulator gets cleaned.
7) After cleaning with soap solution, carefully in-
spect everything that has been cleaned for any
signs of deterioration or damage. Replace any
components in question.
Inspect the exhaust valves on a regular basis.
1.1.2 Sanitizing
Sanitizing is done to minimize the spread of
germs. The helmet should be sanitized daily
when used by one diver, and between dives when
used by multiple divers.
To maximize germ killing action, all internal sur-
faces that come in contact with exhaled breath
need to be thoroughly wetted with the sanitizing
solution and kept wet for at least ten minutes
then thoroughly rinsed.
See "1.3 General Cleaning & Inspec-
tion Procedures" on page GENPRE-4 for detailed
sanitization instructions.
1.1.3 Post Dive Reassembly
1) Wipe clean the surfaces where the parts will
t, make sure all parts are clean, then re-install
the water dump components. Do not lubricate
any of the parts. Parts must be installed dry.
2) Reinstall the oral nasal mask onto the regu-
lator mount nut, then lightly lubricate the nose
block shaft with silicone. Install and secure by
wrapping the knob with a rag, tightening with
pliers while holding the padded end.
Lightly tighten the packing nut. Tighten only
enough so that it cannot be loosened by hand.
3) Install the microphone into the oral nasal
mask. Reinstall the oral nasal valve body and
valve. Check to make sure the oral nasal valve is
installed so the valve opens into the mask.
4) Reinstall both whisker valves ensuring the
valves open outward away from the regulator
body. They must be installed in the correct ori-
entation.
BWARNING
The exhaust valve inserts must be
installed in the correct orientation in
exhaust main body. If the inserts are
installed backwards, the diver will be
unable to exhale. This could lead to
suffocation and death.
BWARNING
The exhaust valves must be correctly
installed in the exhaust valve inserts
or they will not seal correctly. This
could lead to a backow of water into
the helmet, which could expose the
diver to any contaminants that are in
the surrounding water. Depending on
the contaminants, this could lead to
serious personal injury or death.
5) Install the left and right whiskers then inspect
and install the tie wraps or whisker clamps.
SF350-4 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
Place whisker clamps around the grooves in each
of the two whiskers. Before doing the nal tight-
ening of the whisker clamps, make sure that the
parting line on the bottom of the wings is lined
up with the parting line on the main body. For
the SL 27 helmet ONLY, make sure that the
parting line on the bottom of the whisker wings
is " behind the parting line on the main body.
Properly re-align the port and starboard wings to
the main body.
6) Install the diaphragm and regula-
tor cover. Tighten the screw see "Torque
Specs" on page APNDX-19 for correct torque using
a torque screwdriver.
1.1.4 Special Regulator Tools for
SuperFlow®350
Five special tools should be used for maintenance
and adjustment of the demand regulator assem-
bly; the inlet valve holder, regulator adjustment
wrench, socket wrench, castle wrench, and reg-
ulator mount nut socket wrench. These three
wrenches make regulator adjustment much
easier. The tools come in a convenient pouch
with instructions, (P/N 525-620). This tool kit
ships standard with every Kirby Morgan helmet
equipped with the SuperFlow®350 regulator.
1.2 SuperFlow®350 Demand
Regulator
1.2.1 General Regulator Information
While the regulator systems on all Kirby Mor-
gan helmets are simple and highly reliable, the
breathing resistance will increase if the demand
regulator on your helmet is not maintained or
adjusted properly. The demand regulator must
receive regular maintenance to assure the best
performance possible. However, in the event the
demand regulator is damaged, there is always a
backup supply of steady ow gas available from
the defogger valve.
For the gas inlet valve and adjustment system to
operate properly, the components in the demand
regulator MUST be in good condition and MUST
be periodically inspected and adjusted.
Five special tools, the inlet valve holder (P/N
525-616), the regulator adjustment wrench (P/N
525-611), the socket wrench (P/N 525-612), the
castle wrench (P/N 525-618) and the regulator
mount nut socket wrench (P/N 525-625) should
be used to work on the SuperFlow®350 regulator
whenever possible.
Disassembly, assembly, and adjustment can be
done without these tools, but the work is much
easier if these tools are used. The above ve tools
are available together along with a tool case. The
“Tool Kit with Pouch” is Part #525-620. This kit
is included with each new Kirby Morgan helmet
that is equipped with the SuperFlow®350 regula-
tor.
Tool Kit with pouch - Part #525-620.
1.2.2 SuperFlow®350 Demand Regulator
Test for Correct Adjustment, Fully
Assembled
To maintain optimum performance of the de-
mand 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 (www.divelab.com) for
the latest procedures for set-up.
Check the regulator for adjustment and proper
function with the assembly complete, and sup-
plied with a breathing gas supply pressure of 135
to 150 p.s.i.g.
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-5
SuperFlow® 350 Regulator SuperFlow® 350 Demand Regulator
NOTE: 135 to 150 p.s.i.g. over ambient is the
standard supply pressure to be used when ad-
justing all KMDSI helmets and band-masks
equipped with the SuperFlow® 350 regu-
lator. See "Supply Pressure Requirements
& Tables" on page APNDX-4 for recommended
pressures during use.
NOTE: When storing the helmet for any length
of time, ensure that the regulator adjustment
knob is turned “out” fully counterclockwise to
avoid stressing the bias springs and removes un-
necessary pressure on the inlet valve seat. This
will prolong the life of both the inlet valve, seat,
and bias springs.
1) Rotate the regulator adjustment knob in, to-
wards the regulator body.
2) Ensure the supply pressure is connected and
properly adjusted to 135 to 150 p.s.i.g.
3) Turn on the gas supply.
4) Rotate the adjustment knob out counterclock-
wise slowly, until a slight steady ow develops.
5) Slowly rotate the adjustment knob in clock-
wise, until the free ow stops. Lightly depress
the purge button several times and ensure the
gas ow has stopped.
6) Lightly depress the purge button. There should
be between ” and ⅛” free travel in the button
before gas ow starts. When the button is fully
depressed, a strong surge of gas must be heard.
7) If the purge button travels less than ” or
greater than ⅛” before free ow is heard, the de-
mand regulator requires internal adjustment,
per "1.7.1 Tuning the SuperFlow®350 Regulator"
on page SF350-19.
1.2.3 Inspection of SuperFlow®350
Regulator Body Interior
Tools required:
• ¼inch Flat Blade Attachment on Torque
Screwdriver
1) Remove the demand regulator clamp by re-
moving the clamp screw.
Remove the demand regulator clamp.
2) Lift off the regulator cover and diaphragm.
3) Cleanthediaphragmwiththesoapysolution,per
"1.3 General Cleaning & Inspection Procedures"
on page GENPRE-4 and wipe dry. Inspect the dia-
phragm for holes, tears or any signs of deteriora-
tion by holding it up to a white light and stretch-
ing and pulling. Check for a good bond between
the metal disc and the silicone. Replace the dia-
phragm if any doubt exists as to its integrity.
BWARNING
Use only replacement diaphragms
manufactured by Kirby Morgan. Use
of other diaphragms may degrade per-
formance and may cause increased
breathing resistance. This can lead to
fatigue and the inability to work at full
capacity.
4) Inspect the interior of the demand regula-
tor body for damage, corrosion and cleanliness.
Clean the interior of the regulator body if nec-
essary per "1.1 Overpressure Relief Valve Over-
haul Procedures" on page OPRV-1.
5) Reinstall the diaphragm, cover, and clamp.
Makesurethemetal parts arecleananddry. Do not
lubricate the diaphragm. Tighten the clamp screw
to the recommended torque, see "Torque Specs"
onpageAPNDX-19forcorrecttorqueusingatorque
screwdriver.
NOTE: Older regulator clamps, when properly
SF350-6 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
DIAPHRAGM
LOCK NUT
SPACER
COVER
CLAMP
INLET VALVE
INLET NIPPLE
REGULATOR BODY
PISTON
SPACER
ADJUSTMENT
SHAFT
ADJUSTMENT
KNOB
PACKING NUT
EXHAUST
VALVE
EXHAUST
FLANGE
RETAINING PIN
ROLLER LEVER
WASHER
torqued, had a gap of approximately 1/32” to
1/16” between the retaining clamp surfaces when
fully tightened. All current clamps when prop-
erly torqued, have little or no gap between the
retaining clamp surfaces.
1.2.4 SuperFlow®350 Demand Regulator
Bias Adjustment Servicing, Demand
Regulator on the Helmet
NOTE: This procedure should be used when re-
placing the O-ring on the adjustment shaft and/
or cleaning and lubricating the shaft threads dur-
ing eld repairs. Start at the adjustment knob
end of the regulator:
Tools required:
• ¾inch Open-end Wrench Attachment on
Torque Wrench
• inch Punch & Small Block of Wood
• Ball-Peen Hammer
• Regulator Adjustment Tool Kit, Part #525-
620
• Torque Wrench
1) Unscrew the regulator adjustment knob until
it stops. If the knob wobbles as you turn it, or
is extremely hard to turn, the shaft is bent and
needs to be replaced.
The SuperFlow®350 regulator assembly.
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-7
SuperFlow® 350 Regulator SuperFlow® 350 Demand Regulator
Shake out the spacer, spring set, and piston.
Screw the regulator adjustment knob out for removal.
2) Loosen the nut, then rotate the adjustment
knob counterclockwise until the adjustment knob
and the adjustment shaft are free.
3) Remove the spacer, springs, and piston. At this
point the threads can be cleaned and lubricated
as well as the adjustment shaft.
4) Punch out the retaining pin using a " punch.
Use a block of wood with a ¼" hole drilled through
it to support the knob. Position the knob so the
roll pin is over the hole. The adjustment knob can
be held against the wood block allowing the roll
pin to be driven into the ¼" hole.
5) Remove the adjustment knob, the washer and
O-ring.
NOTE: If the spacer and the spring set are stuck,
this could indicate corrosion or possible saltwater
intrusion into the adjustment tube and assembly,
or that the adjustment tube is bent. The demand
regulator should be removed from the helmet,
cleaned and inspected, per "1.3.1 SuperFlow®
350 Demand Regulator Removal from Helmet or
Mask"onpageSF350-8orforstainlesssteelhelmets
with the stainless pod, per "1.1.4 Removal of Reg-
ulator Alone" on page POD-4.
6) Carefully inspect all parts for corrosion, pay-
ing particular attention to threaded surfaces and
the spring set. Clean and lightly lubricate parts
per "1.3 General Cleaning & Inspection Proce-
dures" on page GENPRE-4.
Inspect the washer and o-ring.
NOTE: Carefully inspect the adjustment shaft to
ensure it is straight, Check for damaged threads.
SF350-8 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Regulator & Exhaust System Overhaul SuperFlow® 350 Regulator
Replace the adjustment shaft and O-ring if any
damage is found.
7) Replace washer.
8) Replace the O-ring.
9) Inspect the inside of the adjustment tube on
the regulator body to be sure there is no corro-
sion and the adjustment assembly can travel
freely. Ensure the alignment tube is not bent or
misaligned from impact, and that the threads are
clean.
NOTE: If the inside of the adjustment tube is
corroded, this indicates saltwater intrusion into
the adjustment tube and assembly. The demand
regulator requires removal from the helmet and
cleaning per "1.3.1 SuperFlow® 350 Demand
Regulator Removal from Helmet or Mask" on
page SF350-8 .
1.2.5 Reassembly of the SuperFlow®350
Regulator Adjustment System
Tools required:
• ¾inch Open-end Wrench Attachment on
Torque Wrench
• Silicone grease, or oxygen compatible grease
if used for oxygen service.
1) Lightly lubricate the piston and spacer and
place the piston back in the regulator adjustment
tube, followed by the spring set, and spacer.
2) Lightly lubricate the adjustment shaft end
and threads, install the washer and the lightly
lubricated O-ring on the adjustment shaft.
3) Slip the packing nut over the adjustment shaft
followed by the adjustment knob.
4) Hold the shaft and rotate the knob until the
pin holes line up. Use the inlet valve holder from
the regulator tool kit to accurately align these
holes. Using a small hammer drive the retaining
pin back into place, until it is ush with the sur-
face of the adjustment knob.
5) Screw the adjustment knob assembly clock-
wise back into the regulator body leaving enough
packing nut exposed to place the wrench on it.
NOTE: Ensure the adjustment shaft rotates
smoothly.
6) Thread the packing nut onto the regulator
body and tighten with the ¾” torque wrench
see "Torque Specs" on page APNDX-19 for correct
torque, turn the knob all the way in and all the
way out making sure there is no interference.
7) With the inlet valve stem depressed into the
regulator body, insert the lever feet between the
washer and spacer then release the pressure on
the inlet valve.
1.3 Regulator & Exhaust System
Overhaul
1.3.1 SuperFlow®350 Demand Regulator
Removal from Helmet or Mask
Tools required:
• Torque Wrench and 1 ⅜inch Socket
• ¼inch Flat Blade Attachment on Torque
Screwdriver
• Torque Wrench and inch Open-end At-
tachment
• Torque Wrench and inch Open-end At-
tachment
• Torque Wrench and ⅞inch Open-end At-
tachment
• ⅞inch Open-end Wrench
• And/or P/N 525-625 Regulator Mount Socket
Wrench (in 525-620 Tool Kit).
1) To remove the regulator from the helmet or
mask, the bent tube should be disconnected rst.
The bent tube assembly should be loosened at the
side block and disconnected from the regulator.
It may now be swiveled out of the way or com-
pletely removed.
2) Remove the whiskers from the port retainer by
removing the screws. Take care not to lose the
spacers, kidney plates or zinc anodes.
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-9
SuperFlow® 350 Regulator SuperFlow® 350 Regulator Disassembly
3) Remove the nose block device per "1.2.1 Nose
Block Assembly Removal" on page FCPRT-5.
4) Remove the oral nasal mask.
5) The regulator mount nut is removed along
with the sealing O-ring.
The regulator mount nut must be
removed to remove the regulator.
For Quad-Valve Equipped Helmets
6) Cut the tie wrap that connects the regulator
body to the Quad Valve cover.
For All Helmets
7) Now the regulator assembly can be pulled out
of the helmet.
8) The center section of the exhaust whisker,
named the exhaust main body has a tie wrap
holding it in place. Remove the tie wrap then
stretch the body off the regulator exhaust ange.
9) Older model double or single exhaust whiskers
are removed similarly.
1.4 SuperFlow®350 Regulator
Disassembly
Tools required:
• ¼inch Flat Blade Screwdriver on Torque
Wrench
• ⅞inch Open-end Attachment on Torque
Wrench
• ¾inch Open-end Attachment on Torque
Wrench
• inch Punch
• ⅞inch Open-end Wrench
• Small Ball Peen Hammer
• KMDSI Tool Kit Part #525-620
• Silicone Adhesive, Dow Corning®732 or
Equivalent
• Minimum Recommended Replacement Parts
for Annual Overhaul:
• Inlet valve Soft Seat 510-580
• Adjustment shaft O-ring 510-011
• Adjustment Shaft Washer 520-032
• Lock Nut 530-303
• Diaphragm 510-553
• Inlet Nipple O-ring 510-014
• Exhaust valve 510-552
Or order the “Soft Goods Kit” appropriate for
your model helmet/mask.
1) Remove the screw for the regulator cover and
clamp.
2) Remove the regulator cover and the dia-
phragm.
3) Adjustment knob removal is started by un-
screwing the adjustment knob until it stops.
4) The packing nut is now exposed enough to use
a wrench on it for removal. As the nut is backed
off, also unscrew the knob.
5) The O-ring and washer will remain on the ad-
justment shaft.
6) Tilt the regulator so that the spacer, spring
SF350-10 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
SuperFlow® 350 Regulator Disassembly SuperFlow® 350 Regulator
set, and piston fall out of the adjustment tube of
the regulator.
NOTE: If the spacer and the spring set are stuck,
this indicates possible corrosion or saltwater in-
trusion into the adjustment tube or the adjust-
ment tube may be bent. This occurs if the helmet
is dropped on the adjustment knob or the adjust-
ment knob otherwise impacts against a rigid ob-
ject. Repairs must be made by a trained KMDSI
technician.
7) On the adjustment knob, drive out the retain-
ing pin using a " punch. Use a block of wood
with a ¼" hole drilled through it to support the
knob. Position the knob so the retaining pin is
over the hole. The adjustment knob can be held
against the wood block allowing the retaining pin
to be driven into the ¼” hole.
8) Remove the inlet nipple from the regulator
body. The O-ring should be replaced if a sched-
uled overhaul is being performed.
9) Place the castle wrench in the inlet nipple side
of the demand regulator over the soft seat of the
inlet valve to prevent the inlet valve from rotat-
ing.
The Castle Wrench and inlet valve.
Install the socket wrench from the KMDSI Tool
Kit (Part #525-620) through the adjustment tube
and engage the lock nut on the inlet valve. Loos-
en and remove the lock nut by rotating the socket
wrench counterclockwise.
BCAUTION
The inlet valve adjustment nut must
never be reused. Reuse of the adjust-
ment nut will not allow the regulator to
maintain proper adjustment.
10) Tilt the regulator and drop out the inlet valve
and washer.
11) The spacer and lever will now fall out of the
regulator body.
SuperFlow®350 regulator body with roller lever assembly and inlet valve.
JAM NUT
ROLLER LEVER
SPACER
REGULATOR BODY
WASHER
INLET NIPPLE
VALVE SEAT
O-RING
INLET VALVE
LOCK NUT
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-11
SuperFlow® 350 Regulator Inspection of SuperFlow® 350 Demand Regulator Parts
NOTE: Ensure that the washer comes out with
the other components. It may remain in place
due to corrosion.
12) Remove the screws that hold the exhaust
ange in position. Remove the ange and gasket
from the regulator body.
13) Remove the exhaust valve from the exhaust
ange prior to reassembly.
1.5 Inspection of SuperFlow®350
Demand Regulator Parts
After the regulator has been disassembled, clean
and inspect all parts. Any parts showing signs
of wear, damage or deterioration should be re-
placed. If this is an annual overhaul KMDSI rec-
ommends replacement of the inlet valve seat, lock
nut, O-ring on inlet valve, O-ring on adjustment
shaft, washer on the adjustment shaft. A rebuild
kit is available for replacement parts (Part #525-
309), or order the “Soft Goods Kit” appropriate
for your model helmet/mask.
If any parts show any signs of damage, deterio-
ration or any damaged threads, the part should
be replaced. The lock nut must never be reused.
Reuse of the lock nut will not allow the regulator
to maintain proper adjustment.
1) Exhaust valve: Ensure the silicone exhaust
valve shows no signs of damage, brittleness or
any deformities. The exhaust valve should lay
at against the seat. If conducting an Annual
Overhaul, the exhaust should be replaced. En-
sure the seat spokes that hold the exhaust valve
are smooth, even and not bent, and that the
chrome plating is intact.
The exhaust valve must be in good condition.
Slight bends in the spokes may be removed by
REGULATOR BODY
PISTON
SPACER
SHAFT
WASHER
O-RING
PACKING NUT
SPRING SET
RETAINING PIN
ADJUSTMENT KNOB
Adjustment end of the SuperFlow®350 regulator.
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 at 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.
BWARNING
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-
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-13
SuperFlow® 350 Regulator Reassembly of the SuperFlow® 350 Demand Regulator
lowing procedure is intended as a routine main-
tenance of the inlet valve mechanism. If an an-
nual overhaul is being done, replacement of all
O-rings is required.
1.6.2 Cleaning Instructions
1) If the inlet valve soft seat appears to be in
good condition, clean and re-lubricate. Replace
the seat if needed as per "1.5 Inspection of Su-
perFlow®350 Demand Regulator Parts" on page
SF350-11
2) Carefully clean all regulator components us-
ing a solution of dish soap and water, remove cor-
rosion by soaking for 15-30 minutes in a solu-
tion of vinegar and water. A tube brush should
be used to clean the inside of the regulator body.
BCAUTION
Use only mild soap such as hand dish
washing soap. Use only a tube brush
that does not have an exposed metal
tip, or use an all plastic brush. A tube
brush with hard metal components
could scratch the plated surfaces
Use care not to scratch the metal surfaces with
the end of the tube brush. Use a soft nylon brush
on all other surfaces. After cleaning rinse thor-
oughly with warm fresh water and blow or air
dry.
3) Lay out all components and carefully inspect
using a bright white light, for signs of damage.
Replace any components in question. Re-clean
any components that show signs of contamina-
tion.
When completing a scheduled overhaul, always
replace the diaphragm, exhaust valves and O-
rings. Replace any and all components that show
signs of wear or damage.
1.7 Reassembly of the SuperFlow®
350 Demand Regulator
1) Install the exhaust ange, gasket, and screws
onto the regulator body. Use Loctite®222 to se-
cure the screws. Tighten the screws see "Torque
Specs" on page APNDX-19 for correct torque.
BWARNING
The gasket that sits between the
regulator exhaust ange and regula-
tor body must be in place. Without
this gasket, the regulator will leak and
drowning could result.
The gasket must be installed between
the ange and regulator body.
Be sure to use Loctite®to install the
screws in the regulator body.
SF350-14 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Reassembly of the SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
The screws that hold the ange on the
regulator body should be tightened, see "Torque
Specs" on page APNDX-19 for correct torque.
If the ange is tightened too much, the gasket
will protrude into the exhaust valve opening and
interfere with proper regulator performance.
2) Trim off any excess material from the gasket
that might interfere with the operation of the ex-
haust valve.
3) Install the new exhaust valve into the regu-
lator and trim off any excess stem that may in-
terfere with the movement of the lever or inlet
valve.
The exhaust valve is installed on
the outside of the ange.
The stem of the exhaust valve that sticks into
the regulator body must be trimmed.
4) While using the castle wrench to hold the inlet
valve, insert the valve into the bent tube end of
the regulator body. Place the washer sharp side
down, then the spacer over the end of the inlet
valve stem. As an alternate procedure, the wash-
er and spacer may be placed in the recess in the
inside of the regulator body before inserting the
inlet valve stem.
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-15
SuperFlow® 350 Regulator Reassembly of the SuperFlow® 350 Demand Regulator
Special note on whisker clamps: There is no left or
right whisker clamp. Both clamps are identical.
If the clamps are not oriented correctly, it will be very
difcult to tighten the screws that secure them. There
is also a good possibility that the clamp will come
off of the whisker, reducing the effectiveness of the
exhaust system in keeping the breathing system dry.
BWARNING
If the whisker clamps are not installed
properly, the exhaust valves will leak.
This leads to a chance of backow
into the regulator through the exhaust
valve. In contaminated water diving,
this is a serious emergency.
Whisker Assembly Details
This Screw Head Is Down
Whisker Clamp
Step Facing Towards Regulator
Nut
Nut
This Screw Head Is Up
SF350-16 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Reassembly of the SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
BCAUTION
Be sure the washer and spacer in-
stalled on the inlet valve shaft are in-
stalled in the correct sequence. If they
are not, the regulator will not perform
properly.
5) Using the socket wrench from the tool kit, run
the lock nut onto the inlet valve stem approxi-
mately 1 ½ to 2 turns, leaving enough slack to al-
low installation of the lever. With the inlet valve
pressed in, the washer and spacer must be loose
on the inlet valve stem so the lever can be in-
stalled.
6) Check the roller lever. The lever legs MUST
be parallel to each other and free of any nicks or
burrs. Check them with a straight edge and align
them if necessary by carefully bending them with
pliers.
7) With the inlet valve stem depressed into the
regulator body, insert the feet of the roller lever
between the washer and spacer, then release the
pressure on the inlet valve.
8) Hold the inlet valve with the castle wrench so
that it cannot rotate, tighten the nut until three
threads are visible past the nut. This will be ac-
ceptable for initial set up.
9) While holding the lever down, install the
inlet nipple with its O-ring on, into the regu-
lator body. Using the torque wrench, tight-
en the inlet nipple see "Torque Specs" on
page APNDX-19 for correct torque. Make sure
the jam nut is completely threaded on to the inlet
nipple.
10) Lightly lubricate the piston and spacer. In-
stall the piston, spring set and spacer into the
adjustment tube of the regulator body, sequence
as shown in the blow-apart drawing.
11) For the adjustment shaft, lightly lubricate
the new O-ring then install it and the new wash-
er onto the shaft.
12) Slide the packing nut onto the adjustment
shaft, then slip the knob onto the end of the shaft.
Hold the shaft and rotate the knob until the pin-
holes line up. Use the inlet valve holder - the “L”
shaped tool (or a ” punch), from the regulator
tool kit to accurately align these holes.
13) Install the retaining pin by tapping it in with
a small hammer until it is ush with the outer
surface of the knob.
Install the retaining pin into the adjustment knob.
14) Lightly lubricate the end of the shaft and the
threads with the appropriate lubricant. Thread
the adjustment shaft clockwise, using the ad-
justment knob, into the regulator tube until the
packing nut can be started.
Back out the adjustment knob once the packing
nut is engaged on the demand regulator body to
access the packing nut with the torque wrench.
Using a torque wrench, tighten the packing nut
see "Torque Specs" on page APNDX-19 for correct
torque.
15) Rotate the adjustment knob in i.e., clock-
wise, several turns, then recheck the torque one
more time. Ensure the adjustment shaft rotates
smoothly and there is no binding.
For Quad-Valve Exhaust
16) Stretch the Quad-Valve main exhaust body
onto the exhaust ange of the regulator. Install a
tie wrap and tighten. Cut and discard protruding
end of tie wrap. Rotate as needed so the port and
starboard whiskers can be installed.
For Tri-Valve Exhaust
17) Stretch the Tri-Valve®main exhaust body
onto the exhaust ange of the regulator. Rotate
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-17
SuperFlow® 350 Regulator Reassembly of the SuperFlow® 350 Demand Regulator
as needed so the port and starboard whiskers can
be installed.
For Older Double Exhaust Or Single Ex-
haust
18) For the older double exhaust or single ex-
haust, stretch the exhaust whisker onto the ex-
haust ange of the regulator. Fasten the double
exhaust to the regulator with a tie wrap and
tighten.
BWARNING
The exhaust valves must be correctly
installed in the exhaust valve inserts
or they will not seal correctly. This
could lead to a backow of water into
the helmet, which could expose the
diver to contaminants in the water.
Depending upon the properties of the
contaminants, this could lead to seri-
ous personal injury or death.
For All Helmets
Inspect the whisker exhaust valve inserts for
damage and contamination. Install new valves
ensuring they are installed onto the correct side
of the inserts.
19) Install the inserts with exhaust valves into
the Quad-Valve main exhaust body. Refer to the
notation or marks made when the parts were dis-
assembled.
BWARNING
The exhaust valve inserts must be
installed in the correct orientation in
the Tri/Quad Valve exhaust main body.
If the inserts are installed backwards,
the diver will be unable to exhale. This
could lead to suffocation and death.
For Helmets Equipped With Tie-Wraps
20) Install the left and right whiskers then in-
spect and install the tie-wraps.
For Helmets Equipped With Whisker
Clamps
21) Install the left and right whiskers then in-
spect and install the whisker clamps.
Place whisker clamps around the grooves on each
of the two whiskers. Before doing the nal tight-
ening of the whisker clamps, make sure that the
parting line on the bottom of the wings is lined
up with the parting line on the main body. For
the SL 27 helmet ONLY, make sure that the
parting line on the bottom of the whisker wings
is " behind the parting line on the main body.
Note the step on the inside of the whisker
clamps. These must be oriented in the correct
position to retain the whisker properly.
Properly re-align the port and starboard wings to
the main body.
For All Helmets
22) Pre install a tie wrap as shown onto the whis-
ker main body. This will make installation much
easier and ensure a good seal.
Pre-install the tie wrap.
SF350-18 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Reassembly of the SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
For Helmets Equipped With The Stain-
less Steel Quad-Valve Pod
23) Insert the regulator into the pod and align
by stretching the main Quad Valve exhaust body
onto the quad exhaust extension on the pod.
Insert the regulator into the pod.
Carefully tighten the tie wrap, making sure it is
completely in the groove. Trim the tie wrap as
close as possible. Check for good t.
Carefully tighten tie wrap.
For All Helmets
24) Inspect the regulator mount nut for contami-
nants and damage. Use a tooth brush to clean
threads as needed. Lightly lubricate and install
the sealing O-ring, then thread the regulator
mount nut onto the regulator, nger tight.
The port and starboard whiskers should align
with the whisker covering the main body so that
the parting lines are in alignment (except in the
SL 27 helmet, where the parting lines on the
bottom of the whiskers should be 5/16" behind the
mold line on the main body). You can also make
marks on the whiskers with a felt tip pen.
25) Carefully inspect the bent tube for damage
and contaminants. The bent tube must be free
of dents and compressions deeper than ⅛” and
should not have deep scratches or sever corro-
sion. Replace the bent tube if questionable. In-
stall the bent tube assembly nger tight before
nal tightening of the regulator mount nut.
NOTE: If this maintenance is during an annual
overhaul, replace the Teon® ring at the side
block end of the bent tube and the O-ring at the
demand regulator inlet side of the bent tube.
Lightly lubricate the O-ring on the bent tube as-
sembly. Slide the O-ring end of the bent tube as-
sembly into the regulator inlet nipple until the
side block end is aligned with the threads for the
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006 SF350-19
SuperFlow® 350 Regulator Reassembly of the SuperFlow® 350 Demand Regulator
bent tube mount nut. Rotating clockwise, thread
the large nut on the bent tube assembly onto the
inlet nipple 1 to 2 threads.
Ensure that the Teon®ring is in place and en-
gage the bent tube nut to the side block fully un-
til it is hand tight. You may need to gently rock
the regulator body and/or the bent tube to fully
engage the side block nut.
Next, fully engage (clockwise) the large nut on
the bent tube into the regulator inlet until hand
tight. This will ensure the nut is bottomed on the
shoulder of the bent tube. Do not tighten further.
Loosen the jam nut on the regulator inlet
(counterclockwise), and engage the jam nut
fully to the large nut on the bent tube. Us-
ing a torque wrench and an ⅞” open end
wrench hold the large nut on the regulator
end of the bent tube and tighten the jam nut
see "Torque Specs" on page APNDX-19 for correct
torque.
26) Ensuring the O-ring is in place, use a
torque wrench with a 1 ⅜" socket and an
extension to tighten the regulator mount
nut to see "Torque Specs" on page APNDX-19
for correct torque. Next, using a torque
wrench with an adapter, torque the bent tube
nut to the side block see "Torque Specs" on page
APNDX-19 for correct torque.
27) Attach the whisker to each side of the face
port retainer using the screws, zinc anodes or
kidney plates and spacers, use Loctite®222.
Using a torque wrench with a at blade screw-
driver adapter, carefully torque these screws
see "Torque Specs" on page APNDX-19 for correct
torque.
The Quad Valve must be properly connected to the
regulator and the quad exhaust extension on the pod.
28) Adjust the regulator following instructions in
"1.7.1 Tuning the SuperFlow®350 Regulator" on
page SF350-19.
29) Make sure the diaphragm & mating surfaces
are clean and free of lubricant.
30) Install the diaphragm, cover and screw. Af-
ter all adjustments and ne tuning are complete,
tighten the screw see "Torque Specs" on page
APNDX-19 for correct torque using a torque screw-
driver.
1.7.1 Tuning the SuperFlow®350
Regulator
1) If not already done, remove the clamp, cover
and diaphragm.
2) Screw the adjustment knob (clockwise) all the
way in, towards the regulator body.
3) Pressurize the regulator to between 120-150
p.s.i.g. of supply pressure.
4) Screw the adjustment knob out (counterclock-
wise) until the regulator starts to free ow, then
screw the adjustment knob in (clockwise) until
the free-ow just stops. Depress the lever several
times to ensure the free-ow has stopped.
If the free ow does not stop, the lock nut is too
tight. If the roller lever is sloppy (loose) the lock
nut is too loose.
5) Insert the inlet valve holding tool into the bal-
SF350-20 © MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Reassembly of the SuperFlow® 350 Demand Regulator SuperFlow® 350 Regulator
ance hole on the inlet tube. Push forward on the
tool to stop the inlet valve stem from turning. Ad-
just the nut until the free ow stops and there is
inch (1.5 mm) to ⅛inch (3.0 mm) of free play
at the end of the lever.
Insert the inlet valve holding tool into
the balance hole on the inlet tube.
6) Remove the inlet valve holder tool.
7) Put the diaphragm and cover in place, de-
pressing the cover tightly to simulate a properly
tightened clamp.
Push down on the regulator cover to
simulate a tightened clamp.
8) Depress the purge button in the center of the
cover.
NOTE: (Reference, instructions following) Before
bending the lever, double check the adjustments.
The lever rarely requires bending. Usually levers
require bending only when improperly serviced,
or if damaged during disassembly.
9) There must be inch (1.5 mm) to ⅛inch (3.0
mm) of free travel before the purge button actu-
ates, resulting in a slight ow of gas. If a slight
ow of gas develops with the purge button de-
pressed less than inch (1.5 mm), the lever will
require bending down.
If the purge button travels further than a ⅛inch
(3.0 mm) before gas ow starts, the lever will re-
quire bending upward.
Test the response of the purge button.
10) To bend the lever up, remove the lever and
carefully place it in a vice. Grip the lever from
the side with a pair of long nosed pliers and bend
the roller end up with your nger. Bend it only a
small amount at a time.
NOTE: Be very careful to not place undue stress
on the lower legs of the lever as this will disgure
the feet and cause spongy operation.
11) To bend the lever down, place the disk end of
the KMDSI ¼ inch wrench onto the at area of
the adjustment tube within the regulator, sliding
the disk as far as possible under the lever. With
your nger, slightly bend the lever down over the
disk to the desired height. Be careful not to bend
the lever too far! Bend it slightly then check it.
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