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Flange - Blind, ANSI Class 150, B16.5, RF (in)

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Flange - Blind, ANSI Class 150, B16.5, RF (in)

  • This datasheet is for blind flanges that have a raised face connection.
  • Dimensions per ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.
Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Number of Bolt Holes

NBH

Diameter of Bolt Holes

DBH

Bolt Circle Diameter

P

Approx Weight

(lb)

AW

1/2 3 1/2 1 3/8 7/16 4 5/8 2 3/8 2
3/4 3 7/8 1 11/16 1/2 4 5/8 2 3/4 2
1 4 1/4 2 9/16 4 5/8 3 1/8 2
1 1/4 4 5/8 2 1/2 5/8 4 5/8 3 1/2 2
1 1/2 5 2 7/8 11/16 4 5/8 3 7/8 3
2 6 3 5/8 3/4 4 3/4 4 3/4 3
2 1/2 7 4 1/8 7/8 4 3/4 5 1/2 7
3 7 1/2 5 15/16 4 3/4 6 9
3 1/2 8 1/2 5 1/2 15/16 8 3/4 7 13
4 9 6 3/16 15/16 8 3/4 7 1/2 17
5 10 7 5/16 15/16 8 7/8 8 1/2 20
6 11 8 1/2 1 8 7/8 9 1/2 26
8 13 1/2 10 5/8 1 1/8 8 7/8 11 3/4 45
10 16 12 3/4 1 3/16 12 1 14 1/4 70
12 19 15 1 1/4 12 1 17 110
14 21 16 1/4 1 3/8 12 1 1/8 18 3/4 131
16 23 1/2 18 1/2 1 7/16 16 1 1/8 21 1/4 170
18 25 21 1 9/16 16 1 1/4 22 3/4 209
20 27 1/2 23 1 11/16 20 1 1/4 25 272
22 29 1/2 25 1/4 1 13/16 20 1 3/8 27 1/4 333
24 32 27 1/4 1 7/8 20 1 3/8 29 1/2 411

 

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