F-9615-H
July, 2009
Be sure this information reaches the operator.
You can get extra copies through your supplier.
INSTRUCTIONS for
H-14 & H-16
BACK-PRESSURE
CHECK VALVES
F-9615-H
These INSTRUCTIONS are for experienced operators. If you are not fully familiar
with the principles of operation and safe practices for oxy-fuel gas equipment, we
urge you to read our booklet “Precautions and Safe Practices for Welding, Cut-
ting and Heating,” Form 2035. The same information appears in the “Oxy-Acety-
lene Handbook” which may be purchased from any ESAB distributor. Do NOT
permit untrained persons to operate this equipment. Do NOT attempt to operate
this equipment until you have read and fully understand these instructions. If you
do not fully understand these instructions, contact your supplier for further infor-
mation.
The check valves covered by these instructions are listed by Underwriter’s Labo-
ratories only when using parts manufactured to ESAB Welding & Cutting Prod-
ucts specications on le with Underwriter’s Laboratories, Inc., and when they
are used in the gas service for which they are designed and listed. The use of
other parts that cause damage or failure to the equipment will void the
manufacturer’s warranty.
SPECIFICATIONS
Back-Pressure Max. Flow Operating
Check Valve For Use Capacity, Pressure Range Inlet Outlet Vent Overall Max.
Model Part No. With CFH (m
3
/hr) PSI (bars) Connections Connections Connection Height Diameter
This relief valve is not adjustable.
75
This relief valve is not adjustable.
The relief valve on the H-14 (P/N 11P31)
30 - 60 (2.1 - 4.1)
14 - 1/2”
(368mm)
3 ”
(76mm)
30 to 60
The H-16 (0558009235) is equipped with a relief
valve factory preset to relieve at 20 psig provid-
ing an operating pressure range of 8 to 15 psig.
This relief valve is not adjustable.
H-16
0558009235
Fuel Gas*
300 (20.7)
8 - 15 (0.55 - 1.0)
2
Fig. 1 – INSTALLATION SKETCH
0
0.5
1
1.5
2
2.5
0 50 100 150 200 250 300
Flow CFH
Pressure
Drop
PSIG
3
30 LB. GAUGE
1/4” N.P.T. PIPE
COUPLING
CONNECTION — 3390
1/4-IN. FUEL GAS
HOSE WITH
STANDARD FITTINGS;
LENGTH AS DESIRED
Fig. 3 – TEST GAUGE HOOK-UP
,
.
Before taking any action to repair, adjust or disas-
semble the H-14 or H-16 be sure you have closed
the station shuto valve in the supply line and
relieved all pressure.
A.
F-9615-H 07 / 2009 Printed in U.S.A.
11P63 (H14, P/N 11P31)
11P63 (H16, P/N 0558009235)
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1
-
2
-
3
-
4
ESAB OXWELD® H-14 & H-16 Back-Pressure Check Valves Troubleshooting instruction
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