ASME/ANSI B16.5 Class 150 BL

ASME/ANSI B16.5 Class 150 BL ASME/ANSI B16.5 Class 150 BL
Nominal Pipe Size  Outside Diameter of Flange Diameter of Raised Face Thickness of Flanges Min. Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approximate Weight kgs
NPS O R tf W I n  
1/2 90 34.9 9.6 60.3 15.9 4 0.44
3/4 100 42.9 11.2 69.9 15.9 4 0.64
1 110 50.8 12.7 79.4 15.9 4 0.90
1 1/4 115 63.5 14.3 88.9 15.9 4 1.13
1 1/2 125 73.0 15.9 98.4 15.9 4 1.50
2 150 92.1 17.5 120.7 19.1 4 2.38
2 1/2 180 104.8 20.7 139.7 19.1 4 4.09
3 190 127.0 22.3 152.4 19.1 4 4.97
3 1/2 215 139.7 22.3 177.8 19.1 8 6.20
4 230 157.2 22.3 190.5 19.1 8 7.18
5 255 185.7 22.3 215.9 22.2 8 8.83
6 280 215.9 23.9 241.3 22.2 8 11.55
8 345 269.9 27.0 298.5 22.2 8 20.07
10 405 323.8 28.6 362.0 25.4 12 28.87
12 485 381.0 30.2 431.8 25.4 12 44.18
14 535 412.8 33.4 476.3 28.6 12 59.07
16 595 469.9 35.0 539.8 28.6 16 76.36
18 635 533.4 38.1 577.9 31.8 16 94.51
20 700 584.2 41.3 635.0 31.8 20 123.94
24 815 692.2 46.1 749.3 34.9 20 187.90


Standards, Dimensions & Weight of Blind flanges

What is the use of a blind flange

Most common flange types

Regardless of custom sizing or specifications, the fundamental design of most flanges falls under six common styles created to close, connect, cover, or support pipes and pipe systems.



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