OPW 623V Pressure / Vacuum Vent
Page 2
OPW 623V Pressure / Vacuum Vent Valve
INSTALLATION INSTRUCTIONS:
Step1.
Deburr and thoroughly clean vent pipe. Apply pipe
dope to vent pipe threads. Pipe dope to be a non-
hardening, gasoline resistant pipe thread seal
compound.
Step 2:
(See Figure 1)
Screw the vent assembly onto the vent pipe and
torque to 35 ft.-lbs minimum to 55 ft-lbs maximum.
Use the flats on the pipe adaptor only,
Do not wrench
on the composite valve assembly.
NOTE: NEVER PAINT OR COVER THE VENT
Vent Pipe
Pipe Dope
Vent
Assembly
Operation and Maintenance:
Annual maintenance is required to keep the vent
operating satisfactorily. Remove and inspect filter
screens – clean or replace as necessary.
Upper Screen Maintenance
1. Remove vent top by depressing tabs as indicated
in Fig. 2, and lift top upward. Screen will slip up
and out of valve.
2. Clean or replace filter screen (P/N H14895M) as
necessary and reinstall Fig. 3.
3. Reinstall vent top by reinserting into the body. Be
sure the tabs are inside the valve body, and then
rotate top until the tabs snap into place
PUSH
Vent Top
Upper
Screen
Pipe
Adaptor
Valve
Body
Figure 1
Figure 3
Figure 2
