14 | Baker Hughes
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10. Release the pressure in the actuator. Use pointer (7) to set the
travel scale (9) to the actuator supply pressure so that the two
stem connectors come into contact. Then tighten the socket
head cap screws (5), hex nut (1), and lock nut (32).
11. Shut off the closed valve pressure and check that operation is
correct.
Table 5 - Position of Top Stem Connector
Table 6 - Auxiliary Pilot Plug Travel
Actuator
Size
Travel
“X”Actuator 87
“X”Actuator 88
in
mm
in
mm
in
mm
10
0.8
20
5.12
130.0
4.62
117.3
10
1.5
38
5.44
138.2
16
0.8
20
8.00
203.2
7.02
178.3
16
1.5
38
8.50
228.6
16
2.0
51
9.28
235.7
16
2.5
63.5
9.50
241.3
23
0.8
20
8.25
209.5
23
1.5
38
8.62
218.9
23
2.0
51
9.12
231.6
23
2.5
63.5
9.59
243.6
Valve Size
(inches)
Pressure Rating
Value A
in
mm
2
150, 300 or 600
0.1
2.5
2
900 or 1500
0.08
2
3 and 4
150, 300 or 600
900 or 1500
0.12
3
6
0.2
5
8
0.24
6
10, 12 and 16
0.275
7
Item No.
Description
1
Hex Nut
2
Stem Connector, Bottom
3
Cap Screw, Hex Head
●
4
Stem Connector, Top
●
5
Cap Screw, Socket Head
●
6
Connector Insert
7
Pointer
8
Screw, Pan Head
9
Scale, Travel
10
Actuator Stem
31
Yoke, Machining
●
32
Lock Nut
33
Yoke Nut
Table 7
● Not provided for Size 6 Actuator
