Industry Standard Class 125/150 Slip-On Flanges

ProductsNominal Pipe SizeOutside Diameter (O)Thickness (T)Overall Thickness (Y)Hub Diameter (X)Inside Diameter (B)Approximate Weight (lbs)Number of Bolt HolesDiameter of Bolt HolesDiameter of Bolt Circle (C)
26125SOIS26 34.25 2.003.38 28.50 26.25 235 24 1.38 31.75
28125SOIS28 36.50 2.063.44 30.7528.25 270 28 1.38 34.00
30125SOIS30 38.75 2.13 3.50 32.75 30.25 305 28 1.38 36.00
32125SOIS32 41.75 2.25 3.63 35.00 32.25 375 28 1.63 38.50
34125SOIS34 43.75 2.31 3.6937.00 34.25 400 32 1.63 40.50
36125SOIS36 46.00 2.38 3.75 39.2536.25 450 32 1.63 42.75
38125SOIS38 48.75 2.38 3.7541.75 38.25 530 32 1.63 45.25
40125SOIS4050.75 2.50 3.88 43.75 40.25570361.63 45.25
42125SOIS42 53.00 2.63 4.00 46.00 42.25 650 361.63 49.50
44125SOIS44 55.252.63 4.00 48.00 44.25 690 40 1.63 51.75
46125SOIS4657.25 2.69 4.06 50.00 46.25 730 40 1.63 53.75
48125SOIS48 59.50 2.75 4.13 52.25 48.25 800 44 1.63 56.00
50125SOIS50 61.75 2.754.13 54.25 50.25 830 44 1.88 58.25
52125SOIS52 64.00 2.88 4.25 56.50 52.25 920 44 1.88 60.50
54125SOIS54 66.25 3.00 4.38 58.75 54.25 1025 44 1.88 62.75
60125SOIS60 73.00 3.13 4.50 65.25 60.25 1250 52 1.88 69.25
66125SOIS66 80.00 3.38 4.88 71.50 66.25 1625 52 1.88 76.00
72125SOIS72 86.50 3.50 5.00 78.50 72.25 1925 60 1.88 82.50
78125SOIS78 93.00 3.88 5.3884.50 78.25 2525 64 2.13 89.00
84125SOIS84 99.75 3.88 5.3890.50 84.25 260064 2.13 95.50
90125SOIS90 106.50 4.25 5.75 96.75 90.25 3150682.38 102.00
96125SOIS96 113.25 4.25 5.75 102.75 96.25 3275 68 2.38 108.50