Class 150
Nom. Pipe
Size
Flange Dia.
(0)
Flange Thick
(Q)
Hub Dia. At Base
(X)
Raised Face Dia. (RF)Hub Dia. at Weld Point
(H)
No.
of
Holes
Dia.
of
Bolts
Dia. Of
Bolt Circle (BC)
Bore
Dia.
(B)
Length
Thru Hub
(L)
1/2 3-1/2 7/16 1-3/16 1-3/8 0.84 4 1/2 2-3/8 0.62 1-7/8
3/4 3-7/8 1/2 1-1/2 1-11/16 1.05 4 1/2 2-3/4 0.82 2-1/16
1 4-1/4 9/16 1-15/16 2 1.32 4 1/2 3-1/8 1.05 2-3/16
1-1/4 4-5/8 5/8 2-5/16 2-1/2 1.66 4 1/2 3-1/2 1.38 2-1/4
1-1/2 5 11/16 2-9/16 2-7/8 1.90 4 1/2 3-7/8 1.61 2-7/16
2 6 3/4 3-1/16 3-5/8 2.38 4 5/8 4-3/4 2.07 2-1/2
2-1/2 7 7/8 3-9/16 4-1/8 2.88 4 5/8 5-1/2 2.47 2-3/4
3 7-1/2 15/16 4-1/4 5 3.50 4 5/8 6 3.07 2-3/4
3-1/2 8-1/2 15/16 4-13/16 5-1/2 4.00 8 5/8 7 3.55 2-13/16
4 9 15/16 5-5/16 6-3/16 4.50 8 5/8 7-1/2 4.03 3
5 10 15/16 6-7/16 7-5/16 5.56 8 3/4 8-1/2 5.05 3-1/2
6 11 1 7-9/16 8-1/2 6.63 8 3/4 9-1/2 6.07 3-1/2
8 13-1/2 1-1/8 9-11/16 10-5/8 8.63 8 3/4 11-3/4 7.98 4
10 16 1-3/16 12 12-3/4 10.75 12 7/8 14-1/4 10.02 4
12 19 1-1/4 14-3/8 15 12.75 12 7/8 17 12.00 4-1/2
14 21 1-3/8 15-3/4 16-1/4 14.00 12 1 18-3/4 13.25 5
16 23-1/2 1-7/16 18 18-1/2 16.00 16 1 21-1/4 15.25 5
18 25 1-9/16 19-7/8 21 18.00 16 1-1/8 22-3/4 17.25 5-1/2
20 27-1/2 1-11/16 22 23 20.00 20 1-1/8 25 19.25 5-11/16
24 32 1-7/8 26-1/8 27-1/4 24.00 20 1-1/4 29-1/2 23.25 6