Flange - Blind, ANSI Class 2500, B16.5, RF (in)

Written by Matt Milbury. Posted in Blind Flange Datasheets

Flange - Blind, ANSI Class 2500, ASME B16.5, 1/16" Raised Face Datasheet

This datasheet is for flanges that have a Raised Face end connection.  Additional in depth information about these kinds of flanges can be found on the Raised Face Flange page.

  • 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.

data bf b16.5 400 2500data bf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx Weight

(lb)

1/2 5 1/4 1 3/8 1 3/16 4 7/8 3 1/2 7
3/4 5 1/2 1 11/16 1 1/4 4 7/8 3 3/4 10
1 6 1/4 2 1 3/8 4 1 4 1/4 12
1 1/4 7 1/4 2 1/2 1 1/2 4 1 1/8 5 1/8 18
1 1/2 8 2 7/8 1 3/4 4 1 1/4 5 3/4 25
2 9 1/4 3 5/8 2 8 1 1/8 6 3/4 39
2 1/2 10 1/2 4 1/8 2 1/4 8 1 1/4 7 3/4 56
3 12 5 2 5/8 8 1 3/8 9 86
3 1/2 - - - - - - -
4 14 6 3/16 3 8 1 5/8 10 3/4 133
5 16 1/2 7 5/16 3 5/8 8 1 7/8 12 3/4 223
6 19 8 1/2 4 1/4 8 2 1/8 14 1/2 345
8 21 3/4 10 5/8 5 12 2 1/8 17 1/4 533
10 26 1/2 12 3/4 6 1/2 12 2 5/8 21 1/4 1025
12 30 15 7 1/4 12 2 7/8 24 3/8 1464