Materials & Manufacturing Service Engineers

Pipe Size (NPS)Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500Pipe Size (NPS)
# of Bolts Bolt Diameter Stud Bolt Length # of BoltsBolt DiameterStud Bolt Length# of BoltsBolt DiameterStud Bolt Length# of BoltsBolt DiameterStud Bolt Length# of BoltsBolt DiameterStud Bolt Length# of BoltsBolt DiameterStud Bolt Length# of BoltsBolt DiameterStud Bolt Length
1/2 4 1/2 2 1/4 4 1/2 2 1/2 4 1/2 3 4 1/2 3 4 3/4 4 1/4 4 3/4 4 1/4 4 3/4 4 3/4 1/2
3/4 4 1/2 2 1/2 4 5/8 3 4 5/8 3 1/2 4 5/8 3 1/2 4 3/4 4 1/2 4 3/4 4 1/2 4 3/4 5 3/4
1 4 1/2 2 1/2 4 5/8 3 4 5/8 3 1/2 4 5/8 3 1/2 4 7/8 5 4 7/8 5 4 7/8 5 1/2 1
1 1/4 4 1/2 2 3/4 4 5/8 3 1/4 4 5/8 3 3/4 4 5/8 3 3/4 4 7/8 5 4 7/8 5 4 1 6 1 1/4
1 1/2 4 1/2 2 3/4 4 3/4 3 1/2 4 3/4 4 1/4 4 3/4 4 1/4 4 1 5 1/2 4 1 5 1/2 4 1 1/8 6 3/4 1 1/2
2 4 5/8 3 1/4 8 5/8 3 1/2 8 5/8 4 1/4 8 5/8 4 1/4 8 7/8 5 3/4 8 7/8 5 3/4 8 1 7 2
2 1/2 4 5/8 3 1/2 8 3/4 4 8 3/4 4 3/4 8 3/4 4 3/4 8 1 6 1/4 8 1 6 1/4 8 1 1/8 7 3/4 2 1/2
3 4 5/8 3 1/2 8 3/4 4 1/4 8 3/4 5 8 3/4 5 8 7/8 5 3/4 8 1 1/8 7 8 1 1/4 8 3/4 3
3 1/2 8 5/8 3 1/2 8 3/4 4 1/4 8 7/8 5 1/2 8 7/8 5 1/2 - - - - - - - - - 3 1/2
4 8 5/8 3 1/2 8 3/4 4 1/2 8 7/8 5 1/2 8 7/8 5 3/4 8 1 1/8 6 3/4 8 1 1/4 7 3/4 8 1 1/2 10 4
5 8 3/4 3 3/4 8 3/4 4 3/4 8 7/8 5 3/4 8 1 6 1/2 8 1 1/4 7 1/2 8 1 1/2 9 3/4 8 1 3/4 11 3/4 5
6 8 3/4 4 12 3/4 4 3/4 12 7/8 6 12 1 6 3/4 12 1 1/8 7 1/2 12 1 3/8 10 1/4 8 2 13 1/2 6
8 8 3/4 4 1/4 12 7/8 5 1/2 12 1 6 3/4 12 1 1/8 7 1/2 12 1 3/8 8 3/4 12 1 5/8 11 1/2 12 2 15 8
10 12 7/8 4 1/2 16 1 6 1/4 16 1 1/8 7 1/2 16 1 1/4 8 1/2 16 1 3/8 9 1/4 12 1 7/8 13 1/4 12 2 1/2 19 1/4 10
12 12 7/8 4 3/4 16 1 1/8 6 3/4 16 1 1/4 8 20 1 1/4 8 3/4 20 1 3/8 10 16 2 14 3/4 12 2 3/4 21 1/4 12
14 12 1 5 1/4 20 1 1/8 7 20 1 1/4 8 1/4 20 1 3/8 9 1/4 20 1 1/2 10 3/4 16 2 1/4 16 - - - 14
16 16 1 5 1/4 20 1 1/4 7 1/2 20 1 3/8 8 3/4 20 1 1/2 10 20 1 5/8 11 1/4 16 2 1/2 17 1/2 - - - 16
18 16 1 1/8 5 3/4 24 1 1/4 7 3/4 24 1 3/8 9 20 1 5/8 10 3/4 20 1 7/8 12 3/4 16 2 3/4 19 1/4 - - - 18
20 20 1 1/8 6 1/4 24 1 1/4 8 24 1 1/2 9 1/2 24 1 5/8 11 1/4 20 2 13 3/4 16 3 21 1/4 - - - 20
22 20 1 1/4 6 1/2 24 1 1/2 8 3/4 24 1 5/8 10 24 1 5/8 12 - - - - - - - - - 22
24 20 1 1/4 6 3/4 24 1 1/2 9 24 1 3/4 10 1/2 24 1 7/8 13 20 2 1/2 17 1/4 16 3 1/2 24 1/4 - - - 24

 


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