Emerson Fisher DSV1000, Instruction Manual

Page: 12 / 20

Instruction Manual
D104727X012
DSV1000 Valve
June 2022
12
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
•
m
(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 CLASS
VALVE BODY HEAVY HEX NUT TORQUE (1)
PACKING BOX HOUSING SOCKET
HEAD CAP SCREW TORQUE (1)
N•m ft•lbf N•m ft•lbf
6
150 255 188 81 60
300 255 188 81 60
600 525 387 81 60
8
150 376 277 81 60
300 525 387 81 60
600 711 524 81 60
10
150 376 277 81 60
300 376 277 81 60
600 941 694 81 60
12
150 376 277 81 60
300 711 524 81 60
600 1267 934 81 60
14
150 525 387 81 60
300 525 387 81 60
600 1660 1224 81 60
16
150 525 387 81 60
300 711 524 81 60
600 2126 1568 81 60
20
150 711 524 81 60
300 1267 934 81 60
600 3305 2437 153 113
24
150 941 694 153 113
300 2777 2048 153 113
600 5782 4264 247 182
1. Fasteners must be lubricated to achieve proper preload.