ASTM CLASS 150 THREADED FLANGES

Nominal Pipe SizeOutside Diameter (O)Thickness (T)Raised Face Diameter (R)Length Thru Hub (Y)Hub Diameter (X)Approximate Weight (lbs)Bolt Circle (C)Number of HolesDiameter of Holes
1/2 3.50 0.44 1.38 0.63 1.19 1 2.38 4 0.63
3/4 3.88 0.50 1.69 0.63 1.50 2 2.75 4 0.63
1 4.25 0.56 2.00 0.69 1.94 2 3.13 4 0.63
1 1/4 4.63 0.63 2.50 0.81 2.31 2 3.50 4 0.63
1 1/2 5.00 0.69 2.88 .88 2.56 3 3.88 4 0.63
2 6.00 0.75 3.63 1.00 3.06 5 4.75 4 0.75
2 1/2 7.00 0.88 4.13 1.13 3.56 7 5.50 4 0.75
3 7.50 0.94 5.00 1.19 4.25 8 6.00 4 0.75
3 1/2 8.50 0.94 5.50 1.25 4.81 11 7.00 8 0.75
4 9.00 0.94 6.19 1.31 5.31 13 7.50 8 0.75
5 10.00 0.94 7.31 1.44 6.44 15 8.50 8 0.88
6 11.00 1.00 8.50 1.56 7.56 19 9.50 8 0.88
8 13.50 1.13 10.63 1.75 9.69 30 11.75 8 0.88
10 16.00 1.19 12.75 1.94 12.00 43 14.25 12 1.00
12 19.00 1.25 15.00 2.19 14.38 64 17.00 12 1.00
14 21.00 1.38 16.25 2.25 15.75 90 18.75 12 1.13
16 23.50 1.44 18.50 2.50 18.00 98 21.25 16 1.13
18 25.00 1.56 21.00 2.69 19.88 130 22.75 16 1.25
20 27.50 1.69 23.00 2.88 22.00 165 25.00 20 1.25
22 29.50 1.81 25.25 3.13 24.25 185 27.25 20 1.38
24 32.00 1.88 27.25 3.25 26.13 220 29.50 20 1.38