Overview of Primary Product

V5055A-F INDUSTRIAL GAS VALVES
60-2307—16 8
WARNING
Electrical Shock Hazard and Explosion Hazard.
Can cause serious injury, death or property
damage.
1. Turn off gas supply before starting installation.
2. Disconnect power supply for valve actuator before
beginning installation to prevent electrical shock and
equipment damage.
3. Be sure the valve is installed so the arrow on
the valve points in the direction of gas flow.
(Gas pressure helps to close the valve.)
Location
Install the valve in the gas supply line downstream from the
pressure regulator. The valve and actuator may be mounted in
any position that allows sufficient clearance for installation and
for repair or replacement.
1. The valve position indicators should be easily visible with
the valve and actuator in the final position.
2. The final position of the valve and actuator must allow for
damper linkage, if used.
IMPORTANT:
Allow room for turning the valve body (actuator not
attached) onto the gas piping. Swing dimensions,
measured from the center of the pipe are:
3/4 through 1-1/2 in. valves: 4 in. (101.6 mm).
2 through 3 in. valves: 5 in. (127.0 mm).
4 in. valves: 7 in. (177.8 mm).
Mounting (Figs. 4 through 6)
WARNING
Explosion Hazard.
Can cause serious injury, death or property
damage.
If flow is not in the direction of the arrow on the valve
body, the valve may not shut off.
1. Use new, properly reamed, pipe, free from chips.
2. Do not thread pipe too far (Fig. 4). Valve distortion or
malfunction may result from excess pipe in the valve.
Fig. 4. Preparing the pipes.
3. Remove the protective caps from the ends of the valve.
Do not attach the valve actuator until the valve body
installation is complete.
4. Apply good quality pipe dope resistant to action of
LP gas, putting a moderate amount on the male threads
only. Use dope sparingly; if pipe dope lodges on the
valve seat, it will prevent proper closure.
5. Install valve with the gas flow in the direction indicated by
the arrow on the casting.
6. Apply a parallel jaw wrench only to the flat next to the
pipe being inserted (Fig. 5). A wrench applied to the
valve body itself, or to the end farthest from the pipe
being inserted, may distort the casting, causing a
malfunction. Do not use the valve for a lever.
7. Be sure the gas flow is in the same direction as the arrow
on the bottom of the valve body.
8. Use two threaded companion flanges, two gaskets
(included with valve), and 16 bolts (with washers and
nuts) for mounting a 4 in.-V5055 Valve. Mount a
threaded flange and gasket on each end of the valve as
shown in Fig. 6. Then screw the pipes into the threaded
flanges. Apply dope sparingly, and use wrenches and
vises properly as shown in Fig. 4 and 5.
9. Make sure the power supply is disconnected from
the valve actuator. Then mount the actuator on the valve
body and complete the electrical and linkage
connections following the instructions packed with the
actuator.
OPERATION AND CHECKOUT
Operation
A V5055 Industrial Gas Valve is operated by a V4055, V4062,
or V9055 Fluid Power Gas Valve Actuator. The valve opens
when the actuator is energized, and closes when power is
removed. When closed, the valve seals off against the
rated close-off pressure with no power applied. For further
information, refer to the Instructions for the actuator.
INCORRECT:
CORRECT:
TWO CLEAN
THREADS,
MODERATE
AMOUNT
OF DOPE
EXCESS DOPE MAY BLOCK
DISK OFF
VALVE
SEAT
LOOSE
CHIPS
NORMAL
FULL
THREAD
CORRECT:
NORMAL
FULL
THREAD
REAM PIPE,
BLOW OUT
CHIPS (TO AVOID
LODGING ON SEAT)
TOO LONG,
DISTORTS
VALVE SEAT
INCORRECT:
TOO LONG,
DISTORTS
VALVE SEAT
M9571
1
1
USE PIPE DOPE RESISTANT TO ACTION OF LP GAS.