Form FVC 045 - Rev. 1
Reassembly Procedure
REFER TO FIGURE 1 FOR THE FOLLOWING STEPS:
Step 1:
Install O-Ring (4) into groove on Stem (2).
Step 2:
Lubricate Stem threads with a small amount of thread lubricant and install Stem into Body (1). Place Handwheel (5) onto flats
of Stem (2) and rotate clockwise (cw) until stem intersects Body seat. Note: Do not use a wrench on the Handwheel to seat
valve. The valve will seat properly using one hand to tighten.
Step 3:
Install Bonnet (3) over Stem (2) and thread onto Body bonnet threads. Torque the Bonnet (3) to 25 ft-lbs.
Step 4:
Place Handwheel (5) on flats of Stem (2) and secure with Panhead Screw (6) and Washer (7).
Step 5:
Test valve with air to be bubble tight before returning to service.
Installation of New or Repaired Liquid Level Vent Valves
Step 1:
Apply Teflon tape or pipe sealant on male pipe threads of valve. Place valve in Closed position.
Step 2:
Install Bleed Valve and Pressure Gage into side body ports.
Step 3:
Install complete valve assembly in to tank or piping, taking care to not overtighten.
Step 4:
Open valve and check for leaks at all threaded connections.
BLEED VALVE
BODY TO STEM SEAT
3/4" NPT
2
A
FIGURE 1
1
1/4" NPT
3-PLACES
A
4
5
7
6
3
MODEL AL404
QTY.
NO.
2 1
1 1
3 1
BONNET
BODY
STEM
DESCRIPTION
SEAL KIT NO. 404-0022
PAN HEAD SCREW
STEM SEAL O-RING
HANDWHEEL
*
5 1
4 1
6 1
7 1
*
WASHER
VIEW AA
PRESSURE GAGE
1-3/4"
1-3/8"
(CLOSED)
(OPEN)
2-9/32"
2-1/16"
