Emerson Fisher HP Instruction Manual page 5

Instruction Manual
D104480X012
7. Apply nickel-based anti-seize lubricant to stem (key 46) and two jam nuts (key 47). Lock nuts together by threading
in opposite directions. See table 1 for recommended jam nut (key 47) torque values.
8. Install the stem/nut assembly (key 46, key 47) into the bonnet (key 18) such that the side with the two locked nuts
is opposite of the packing box bore and will be inside the body cavity when fully installed.
Table 1. Recommended Nut Torque for Hex Jam Nuts (Key 47)
VALVE SIZE, NPS
All
STEM SIZE
1
1-1/4
2
HP Control Valve Startup Trim
NOMINAL TORQUE
N•m
380
750
3025
July 2019
ft•lbf
280
550
2230
5