GX Valve and Actuator
Instruction Manual
Form 5770
June 2006
12
GE02918-5
A
A
G
B
B
H
D
F
E
C
C
C
D
F
E
SIZE DN15, 20, 25
(0.5, 0.75, 1-INCH)
SIZE DN40, 50, 80, 100
(1.5, 2, 3, 4-INCH)
A
B
C
C
D
E
F
J
SIZE DN150
(6-Inch)
Figure 4. Seat Ring Removal and Installation Tool
Table 5. Seat Ring Removal and Installation Tool Dimensions
Valve Size
A
B
C
D
E
F
O
G
O
H
J
O
DN
Inch
mm
15, 20, 25
0.5, 0.75, 1
24
15
15.2
9
54
40
45
10
- - -
40
1.5
36
20
2X 13.2
7.5
58
53
- - -
- - -
- - -
50
2
46
28
2X 13.2
7.5
63
63
- - -
- - -
- - -
80
3
60
36
2X 15.2
8.5
100
93
- - -
- - -
- - -
100
4
70
44
2X 17.2
9.5
114
113
- - -
- - -
- - -
150
6
100
50
2X 43
10.5
170.5
174
- - -
- - -
153
Table 6. Packing Follower Torque
Valve Size
Packing
Style
Torque
N
S
m
(lbf
S
ft)
Packing
Style
Torque
N
S
m
(lbf
S
ft)
DN15, 20,
25, 40, and
50
PTFE
10 (7.4)
ULF
35 (26)
DN80 and
100
PTFE
23 (17)
ULF
50 (37)
DN150
PTFE
36 (26)
ULF
68 (50)
22. Thread the stem lock adjustor (key 27) up until it
is the rated travel distance specified in table 2 from
the actuator rod (key 22). Thread the locknut
(key 28) up against the stem locknut and tighten.
23. Stroke the actuator rod until it contacts the stem
adjuster nut (key 27) and install the stem connector
halves and travel indicator (keys 23, 24, and 26) with
the cap screws (key 25). Install the stem connector
