V9055A,D MODULATING FLUID POWER GAS VALVE ACTUATOR
7. If the valve bonnet assembly is in good condition and is
not replaced, replace the bonnet seal. Do not reuse the
old bonnet seal. See Table 6 below for the seal number.
8. Coat seals with grease provided and position in valve
body/bonnet assembly.
9. Carefully seat the bonnet assembly on the valve body.
Be sure the seals are in their proper position. On those
valves with a spring below the disc, be sure the spring is
centered in the indentation on the inside of the valve
body.
10. After positioning the bonnet assembly, replace the
screws removed earlier.
NOTE: When replacing the bonnet assembly on the 4-
inch valve, draw it evenly into the valve body.
Finger-tighten the eight bolts. Draw the bonnet
assembly into the valve by tightening, in order,
bolts 1, 5, 7 and 3 (two turns each). Repeat
until the bonnet assembly is seated. Tighten
the remaining bolts. Torque the bolts as
follows:
11. Remount the actuator on the bonnet assembly. Tighten
the two set screws (50-60 inch pounds).
12. Replace the damper crank arm assembly.
13. Re-attach the wires removed from the actuator termi-
nals and turn on the electrical power.
14. With the gas still off, cycle the actuator to check for
proper mechanical operation.
CAUTION
Be sure to perform a bonnet seal and seat leak check
after installation.
Be sure to read and follow all instructions that come
with the actuators, valves, seal and bonnet kits.
**Each replacement assembly contains the bonnet assembly,
two rubber seals, and a tube of grease. It must be used only
on the type of valve indicated above.
Valve Size
Torque
3/4 in. (19 mm) to 1-1/2 in. (38 mm)
55 in.-lb.
2 in. (51 mm) to 4 in. (102 mm)
75 in.-lb.
Table 5. Replacement Bonnets for
V5055/V5097 Gas Valves.
Replacement
Bonnet**
Valve
Valve Size (in
inches)
133398AA
V5055A
V5097A
3/4, 1, 1-1/4, 1-1/2
133417AA
2, 2-1/2, 3
Not Available
(On-Off)
4
133398BA
V5055B
V5097B
3/4, 1, 1-1/4, 1-1/2
133417BA
2, 2-1/2, 3
Not Available
(Characterized Guide)
4
133398CA
V5055C
V5097C
3/4, 1, 1-1/4, 1-1/2
133417CA
2, 2-1/2, 3
136911CA
(Proof of Closure)
4
Not Available
V5055D
V5097D
3/4, 1, 1-1/4, 1-1/2
Not Available
2, 2-1/2, 3
136308BA
V5055E
V5097E
3/4, 1, 1-1/4, 1-1/2
Not Available
2, 2-1/2, 3
Table 6. Gas Valve Replacement Seals.
Replacement Seal
Assy #
Valve Size (in inches.)
133393A
3/4, 1, 1-1/4, 1-1/2
133392A
2, 2-1/2, 3
137253A
4
