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Bolt-Up Chart for Class 2500 Flange
Flange Bolts Length of Stud Bolts
Pipe Size Number
of Bolts
Diameter
of Bolts
Raised Face Ring Joint
Class 2500
Length of Stud Bolts
Pipe Size Number
of Bolts
Diameter
of Bolts
Raised Face Ring Joint
1/2 4 3/4 4 3/4 4 3/4
3/4 4 3/4 5 5
1 4 7/8 5 1/2 5 1/2
1 1/4 4 1 6 6
1 1/2 4 1 1/8 6 3/4 6 3/4
2 8 1 7 7
2 1/2 8 1 1/8 7 3/4 8
3 8 1 1/4 8 3/4 9
4 8 1 1/2 10 10 1/4
5 8 1 3/4 11 3/4 12 1/4
6 8 2 13 1/2 14
8 12 2 15 15 1/2
10 12 2 1/2 19 1/4 20
12 12 2 3/4 21 1/4 22