Instruction Manual
D100397X012
ES Valve
July 2017
11
15. Mount the actuator on the valve assembly and reconnect the actuator and valve stem according to the procedure
in the appropriate actuator instruction manual.
Trim Maintenance
WARNING
Refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
CAUTION
In the following applicable procedures, to avoid damaging parts, do not grip the bellows shroud or other parts of the
stem/bellows assembly. Grip only the flat areas on the stem where it extends out of the top of the bellows shroud.
Except where indicated, key numbers in this section are referenced in figure 13 for standard NPS 1/2 through 6
constructions, figure 14 for NPS 8 ES valves, figure 15 for Whisper Trim III cage detail, and figure 16 for WhisperFlo
trim.
Disassembly
1. Remove the actuator and the bonnet according to steps 1 through 6 of the Replacing Packing procedure of the
Maintenance section.
Table 4. Recommended Torque for Packing Flange Nuts (Not for Spring‐Loaded Packing)
VALVE STEM DIAMETER
PRESS‐URE
RATING
GRAPHITE TYPE PACKING PTFE TYPE PACKING
Minimum Torque Maximum Torque Minimum Torque Maximum Torque
mm Inches NSm LbfSin NSm LbfSin NSm LbfSin NSm LbfSin
9.5 3/8
CL125,
150
3 24 5 48 1 12 3 24
CL250,
300
4 36 7 60 2 18 3 30
CL600 5 48 8 72 3 24 4 36
12.7 1/2
CL125,
150
5 48 8 72 3 24 4 36
CL250,
300
7 60 10 84 3 30 5 42
CL600 10 84 14 120 5 42 7 60
19.1 3/4
CL125,
150
11 96 16 144 5 48 8 72
CL250,
300
14 120 20 180 7 60 10 90
CL600 20 180 30 264 10 90 15 132
25.4 1
CL300 24 216 37 324 12 108 16 144
CL600 34 300 50 444 16 144 24 216
31.8 1‐1/4
CL300 33 288 49 432 16 144 24 216
CL600 45 396 66 588 22 192 33 288
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