INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
3-Piece Threaded, Socket, Tube & Clamp End Ball Valves
DOC: IOM_FNW3PCBV_ ver_12-2007
Page 5 of 6
Body Bolt Torques (In-Lbs)*
Table 1
Valve Size
Valve Type/Class
1/4"
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
1000/800 WOG
86.74
86.74
86.74
104.08
104.08
130.11
147.45
277.56
607.16
607.16
824.00
2000/1500 WOG
86.74
86.74
95.50
95.50
95.50
194.45
194.45
399.35
-
-
-
Clamp/Tube Ends
-
-
200.03
200.03
200.03
399.97
399.97
399.97
499.98
899.94
899.94
* These torques are the minimums for proper body sealing. Additional force should not be needed. If
additional force is applied, the user is cautioned to not over tighten, especially to the point of causing the end
caps to bend or otherwise damaging the valve.
Body Bolt Tightening Sequence
Figure 1
General Construction Drawing
Figure 2
