Class 2500 flanges - NPS 1 to 12 - Orifice welding neck

Standard ASME B 16.36 - 1996
Description Class 2500 flange - NPS 1 - Orifice welding neck - Raised face
Part number ASME B 16.36 - OWNF - C2500 - NPS 1 - B 15.22 - RF
Mass 6.5 kg
Note Raised face
Product selection
Selector NPS (inch) Flange Ø (mm) Flange thickness (mm) Total thickness (mm) Number of drillings Fixing Ø (mm) Drillings Ø (mm) Weight (kg)
1 1 159 38.1 91.9 4 108 25.4 6.5
2 1 1/2 203 44.5 111.3 4 146 31.8 13
3 2 235 50.8 127 8 171.5 28.5 19
4 2 1/2 267 57.2 142.7 8 196.9 31.8 24
5 3 305 66.5 168.1 8 228.6 35 43
6 4 356 76.2 190.5 8 273 41.1 66
7 6 483 108 273.1 8 368.3 53.8 172
8 8 552 127 317.5 12 438.2 53.8 261
9 10 673 165.1 419.1 12 539.8 66.5 485
10 12 762 184.2 463.6 12 619.3 73.2 730
NPS (inch)
Flange Ø (mm)
Flange thickness (mm)
Total thickness (mm)
Number of drillings
Fixing Ø (mm)
Drillings Ø (mm)
Weight (kg)