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1. Filter Installation:
EST4, ESL4 and ELC4 Models:
appropriate inlet port in the Body. To retain the Inlet Filter in the Body, flatten the Filter's
tubular ring with a flat bottom Punch.
ESS7 Models: Install the new Filter
2. Install the Inlet Nut
#222 to the Inlet Swivel threads.
3. If not already in place, mount the Inlet Plug (if one is being used) back in the Bench Vise.
Firmly attach the Inlet Swivel and Inlet Nut onto the Inlet Plug. If not using an Inlet Plug,
simply clamp the Body itself into the Vise using the hex on the back of the Body.
4. Either screw the Body onto the Inlet Swivel using the Leverage Bar Tool RT-180, or
tighten the Inlet Swivel into the Body using a Wrench and Socket, taking care not to
damage the Inlet Swivel hex. Torque the Inlet Swivel 20-25 ft-lbs.
5. Apply either Teflon® tape or Loctite® #222 to the Gauge(s)
[20], and install into the Body using a minimum of 10 ft-lbs. torque.
6. Preassemble the Relief Valve (if so equipped):
Assemble (or reassemble) the Relief Valve
lubricants or sealants. If your Regulator model has a Pipe Plug instead of a Relief Valve,
or if your Relief Valve is already assembled and tested, you can skip to STEP 10.
7. To ensure proper Relief Valve performance, perform the following test procedures before
assembling the Relief Valve in the Regulator.
a. Attach the Relief Valve to a 450 PSIG source of oil-free air or dry nitrogen.
b. Slowly pressurize the Relief Valve, increasing to the recommended blow-off pressure
listed below. Note that
pressure, in case you're unsure which Relief Valve you have.
Non-Vented Relief Valves:
If the Relief Valve vents before the minimum blow-off pressure is reached, then a
second Disc
[28E]
If it still vents, then the Spring
Vented Relief Valves:
If the Vented Relief Valve fails to vent within the recommended blow-off pressure,
reset the Adjusting Screw
sure you fully bleed off all pressure each time you test for blow-off pressure.
Regulator Max.
Delivery Pressure
15 PSIG
40 PSIG
125 PSIG
200 PSIG
8. When all testing is completed, bleed pressure off the Relief Valve. Install the Cap Nut
[28K]
on the Vented Relief Valve.
9. Apply either Teflon® tape or Loctite® #222 to the Relief Valve threads. Install the Relief
Valve into the Body and torque to a minimum of 10 ft-lbs.
ESS7/EST4/ESL4/ELC4
Install the new Inlet Filter screen
[3]
into the Inlet Swivel
[24]
onto the Inlet Swivel, and apply either Teflon® tape or Loctite®
VICTOR
Relief Valves are stamped with their nominal set
may be added.
[28F]
must be replaced.
[28J]
as necessary and perform this step again. Make
Mating Relief
Valve (Nominal)
30 PSIG
60 PSIG
200 PSIG
400 PSIG
- 22 -
[26]
by pressing in a Vise.
[29, 30]
[28]
as shown in DETAIL A.
Recommended
Blow-off Pressure
27 to 33 PSIG
55 to 66 PSIG
180 to 220 PSIG
360 to 440 PSIG
[3]
into the
and any Pipe Plugs
Use no
SECTION 3
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