Class 150 Steel Pipe Flanges

PipeSizeOCXAYYYTB1BB2rD
Outside
Diameter
of
Flange
Thickness
of Flange,
Minimum
Diameter
of Hub
Diameter
of
Weldneck
Threaded
Slip-On
Lap-JointWeld NeckThread
Length
Threaded
Flange,
Minimum
Slip-On,
Minimum
Lap-Joint,
Minimum
Weld neck / Socket
weld
Lap-Joint
Flange
Radius
Depth of Socket
1/23.50.441.190.840.620.621.880.620.880.90.620.120.38
3/43.880.51.51.050.620.622.060.621.091.110.820.120.44
14.250.561.941.320.690.692.190.691.361.381.050.120.5
1 1/44.620.622.311.660.810.812.250.811.71.721.380.190.56
1 1/250.692.561.90.880.882.440.881.951.971.610.250.62
260.753.062.38112.512.442.462.070.310.69
2 1/270.883.562.881.121.122.751.122.942.972.470.310.75
37.50.944.253.51.191.192.751.193.573.63.070.380.81
3 1/28.50.944.8141.251.252.811.254.074.13.550.38...
490.945.314.51.311.3131.314.574.64.030.44...
5100.946.445.561.441.443.51.445.665.695.050.44...
61117.566.631.561.563.51.566.726.756.070.5...
813.51.129.698.631.751.7541.758.728.757.980.5...
10161.191210.751.941.9441.9410.8810.9210.020.5...
12191.2514.3812.752.192.194.52.1912.8812.92120.5...
14211.3815.75142.253.1252.2514.1414.1813.250.5...
1623.51.4418162.53.4452.516.1616.1915.250.5...
18251.5619.88182.693.815.52.6918.1818.217.250.5...
2027.51.6922202.884.065.692.8820.220.2519.250.5...
24321.8826.12243.254.3863.2524.2524.2523.250.5...


Pipe SizeBOLTING PATTERN AND BOLT LENGTHS
Diameter of Bolt CircleDiameter of Bolt HolesNumber of BoltsDiameter of BoltsMachine Bolts
0.006 in
Raised Face
Stud Bolts
0.006 in
Raised Face
1/22.380.6240.522.5
3/42.750.6240.52.252.5
13.120.6240.52.252.75
1 1/43.50.6240.52.52.75
1 1/23.880.6240.52.53
24.750.7540.622.753.25
2 1/25.50.7540.6233.5
360.7540.623.253.75
3 1/270.7580.623.253.75
47.50.7580.623.253.75
58.50.8880.753.254
69.50.8880.753.54
811.750.8880.753.754.25
1014.251120.884.254.75
12171120.884.254.75
1418.751.121214.55.25
1621.251.121614.755.5
1822.751.25161.1256
20251.25201.125.56.25
2429.51.38201.2567
30361.38281.25
3642.751.62321.5
4249.51.62361.5
48561.62441.5
  
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