FLANGE - ORIFICE, WELD NECK, ANSI CLASS 2500, B16.36 (IN)

flange - orifice, weld neck, ansi class 300, b16.36 (in)
  • Dimensions to ASME B16.36 - Orifice Flanges
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.
  • All dimensions except "Thickness of Flange C sizes 1" are the same as a Weld Neck.
  • Approximate weight is based on a orifice flange union which is a set of flanges, plate not included.
Pipe Size (NPS) Outside Diameter of Flange A Diameter of Raised Face B Thickness of Flange C Diameter of Bore D Diameter of Hub at Weld H Diameter of Hub at Base J Length of Hub K Number of Bolt Holes Diameter of Bolt Holes Bolt Circle Diameter P Approx. Weight Per Union (lb)
1/2 - - - - - - - - - - -
3/4 - - - - - - - - - - -
1 6 1/4 2 1 1/2 * 1.315 2 1/4 3 1/2 4 1 4 1/4 -
1 1/4 7 1/4 2 1/2 1 1/2 * 1.660 2 7/8 3 3/4 4 1 1/8 5 1/8 -
1 1/2 8 2 7/8 1 3/4 * 1.900 3 1/8 4 3/8 4 1 1/4 5 3/4 -
2 9 1/4 3 5/8 2 * 2.375 3 3/4 5 8 1 1/8 6 3/4 -
2 1/2 10 1/2 4 1/8 2 1/4 * 2.875 4 1/2 5 5/8 8 1 1/4 7 3/4 -
3 12 5 2 5/8 * 3.500 5 1/4 6 5/8 8 1 3/8 9 -
3 1/2 - - - - - - - - - - -
4 14 6 3/16 3 * 4.500 6 1/2 7 1/2 8 1 5/8 10 3/4 -
5 16 1/2 7 5/16 3 5/8 * 5.563 8 9 8 1 7/8 12 3/4 -
6 19 8 1/2 4 1/4 * 6.625 9 1/4 10 3/4 8 2 1/8 14 1/2 -
8 21 3/4 10 5/8 5 * 8.625 12 12 1/2 12 2 1/8 17 1/4 -
10 26 1/2 12 3/4 6 1/2 * 10.750 14 3/4 16 1/2 12 2 5/8 21 1/4 -
12 30 15 7 1/4 * 12.750 17 3/8 18 1/4 12 2 7/8 24 3/8 -


Datasheets and dimensional information



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