ET 201i DC
INSTALLATION
0-5452
3-8
3.07 Victor Regulator
Pressure regulator (Figure 3-3) attached to the cylinder
valve reduce high cylinder pressures to suitable low
working pressures for welding, cutting, and other
applications.
LOW PRESSURE
GAUGE (DELIVERY)
HIGH PRESSURE
GAUGE (SUPPLY)
INLET
CONNECTION
OUTLET
CONNECTION
PRESSURE
ADJUSTING
SCREW
A-09414_AB
Figure 3-3: Victor CS Regulator
!
WARNING
Use the regulator for the gas and pressure for
which it is designed. NEVER alter a regulator for
use with any other gas.
NOTE!
Regulators purchased with open 1/8”, 1/4”, 3/8”,
or 1/2” NPT ports must be assembled to their
intended system.
1. Note the maximum inlet pressure stamped on the
regulator. DO NOT attach the regulator to a system
that has a higher pressure than the maximum rated
pressure stamped on the regulator.
2. The regulator body will be stamped “IN” or “HP” at the
inlet port. Attach the inlet port to the system supply
pressure connection.
3. Wrap pipe threads with Teflon tape 1 1/2 to 2 turns to
effect a seal. If other sealants are used, they must be
compatible with the gas that will be used in the system.
4. If gauges are to be attached to the regulator and the
regu lator is stamped and listed by a third party (i.e.
“UL” or “ETL”). The following requirements must be
met:
a) Inlet gauges over 1000 PSIG (6.87 mPa) shall
conform with the requirements of UL 404,
“Indicating Pressure Gauges for Compressed Gas
Service.”
b) Low pressure gauges must be UL recognized
for the class of regulator they are being used on
according to UL252A.
!
WARNING
DO NOT
use a regulator that delivers pressure
exceeding the pressure rating of the downstream
equipment unless pro visions are made to prevent
over-pressurization (i.e. system relief valve). Make
sure the pressure rating of the down stream equip-
ment is compatible with the maximum delivery
pressure of the regulator.
5. Be sure that the regulator has the correct pressure
rating and gas service for the cylinder used.
6. Carefully inspect the regulator for damaged threads,
dirt, dust, grease, oil, or other flammable substances.
Remove dust and dirt with a clean cloth. Be sure the
inlet swivel filter is clean and in place. Attach the
regulator (Figure 3-4) to the cylinder valve. Tighten
securely with a wrench.
!
WARNING
DO NOT attach or use the regulator if oil, grease,
flamma ble substances or damage is present! Have
a qualified repair technician clean the regulator or
repair any damage.
Art # A-09845
Figure 3-4: Regulator to Cylinder Valve
7. Before opening the cylinder valve, turn the regulator
adjusting screw counterclockwise until there is no
pressure on the adjusting spring and the screw turns
freely.
8. Relief Valve (where provided): The relief valve is
designed to protect the low pressure side of the
regulator from high pres sures. Relief valves are not
intended to protect down stream equipment from high
pressures.
!
WARNING
DO NOT tamper with the relief valve or remove it
from the regulator.
