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SPRING LOADED BACK PRESSURE VALVE
User manual
DAN-20064957
8.4
Mechanical assembly
8.4.1
Valve torque specifications
User manual
40
www.Daniel.com
Figure 8-1: Using the piston to remove the seat ring from the 150/300 lb
cylinder
8. Turn the cylinder over with the ports on top when removing the high pressure seat
ring. Remove the set screw from the seat ring. Turn the seat ring counterclockwise
to remove the seat ring and then remove the O-ring from the cylinder.
Table 8-1: Valve cylinder head to body (stud-nut) torque specifications
Valve size (in)
Flange rating (lbs)
2
150
300
600
3
150
300
600
4
150
300
600
Planned maintenance
Num. bolts
Min. torque (lbs/ft)
6
6
6
15
6
67
6
15
6
40
8
49
8
13
8
35
8
100
August 2019
51
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