Figure 3. Stud Bolts for Installation (also see table 5)
WAFER BODY OR LUGGED BODY
WITH DRILLED THROUGH HOLES
Table 5. Hex Head Screw, Stud Bolt and Cap Screw Data
Number of
Valve Size,
Valve
Through
NPS
Rating
Holes
150
14
300
150
16
300
150
18
300
150
20
300
150
24
300
Number of
Valve Size,
Valve
Through
NPS
Rating
Holes
150
14
300
150
16
300
150
18
300
150
20
300
150
24
300
Number of
Valve Size,
Valve
Through
NPS
Rating
Holes
150
14
300
150
16
300
150
18
300
150
20
300
150
24
300
1. Threaded engagement in accordance with ASME B31.3 "Chemical Plant and Petroleum Refinery Piping."
2. Bolting lengths are base on installation of valve between standard raised face flanges utilizing flange gaskets with a final compression thickness of 0.125 inch. When gaskets used have a final
compression thickness less than 0.125 inch, reduce bolting lengths shown by 0.25 inch.
8
A
Wafer Bodies or Lugged Bodies with Drilled Through Holes