Instruction Manual

Instruction Manual
D103175X012
GX Valve and Actuator
August 2011
24
D Date of maintenance
D Trim material
D Port diameter
D Flow capacity (C
v
/K
v
)
D Flow characteristic
D Actuator Action ATO/ATC
Bellows Maintenance
This section provides instruction on the replacement of the bellows / stem assembly (see key 49 in figure 23).
1. Remove the actuator, bonnet assembly as described in the Replacing Packing section (steps 1 through 10).
2. Remove the plug/stem assemblies as described in the Valve Trim Disassembly section (steps 2 through 6).
3. To install the new bellows / stem assembly (key 49), perform the Valve Trim Assembly (step 3).
Figure 6. Fisher GX Handwheel Assembly
GE11642-1
AIR-TO-CLOSE, SPRING-TO-OPEN AIR-TO-OPEN, SPRING-TO-CLOSE
STUD AND
NUT (4)
STUD AND
NUT (4)
LOCKING
SCREW
LOCKING
SCREW