Emerson Fisher DSV1000 Instruction Manual page 12

DSV1000 Valve
June 2022
17. Specific to the DSV1000 NPS 6 CL150 construction, inject lubricant into the spring hole of the follower trunnion
(key 42) and install the grounding spring (key 40) by pressing firmly into place (see figure 6).
a. Lubricate and install the O-ring (key 41) in the gland of the follower trunnion.
b. Lubricate the body follower bore and install the follower trunnion assembly.
c. Apply anti-seize lubricant to the socket head cap screws (key 43) and tighten in a star pattern to 81 N
(60 ft lbf).
•
18. Apply anti-seize lubricant to the packing box housing socket head cap screws (key 10). Thread in all fasteners, but
do not tighten.
19. The packing box holes for the straight pins (key 7) were originally staked at the factory. Use a file to remove the
deformed material at the top of each pin hole to allow the pin to slide by with minimal interference. Lubricate the
straight pins (key 7) and drive each through the packing box housing and into the valve body. When properly
installed and bottomed out, the pin top surface will be slightly below the packing box top surface. Stake all pins in
place making sure the packing box housing material has been deformed within the bore to prevent the pins from
disengaging.
20. Tighten the socket head cap screws (key 10) in a star pattern to the appropriate torque specification (see table 4).
Reinstall the two plastic packing box plugs (key 39) into their respective jack bolt counterbores to prevent
environmental ingress.
21. Install the packing components as detailed in the Packing Maintenance section of this manual.
22. Install the valve shaft key (key 29), flat washer (key 30) and hex head bolt (key 31). The purpose of the washer and
hex bolt is to prevent the key from migrating axially out of the keyway in-service.
Table 4. Torque Values
VALVE SIZE, NPS
6
8
10
12
14
16
20
24
1. Fasteners must be lubricated to achieve proper preload.
12
VALVE BODY HEAVY HEX NUT TORQUE
CLASS
N•m
150 255
300 255
600 525
150 376
300 525
600 711
150 376
300 376
600 941
150 376
300 711
600 1267
150 525
300 525
600 1660
150 525
300 711
600 2126
150 711
300 1267
600 3305
150 941
300 2777
600 5782
PACKING BOX HOUSING SOCKET
(1)
HEAD CAP SCREW TORQUE
ft•lbf N•m
188 81
188 81
387 81
277 81
387 81
524 81
277 81
277 81
694 81
277 81
524 81
934 81
387 81
387 81
1224 81
387 81
524 81
1568 81
524 81
934 81
2437 153
694 153
2048 153
4264 247
Instruction Manual
D104727X012
m
•
(1)
ft•lbf
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
113
113
113
182