Flange - Blind, ANSI Class 600, B16.5, RF (in)

Written by Matt Milbury on . Posted in Blind Flange Datasheets

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.

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

NBH

Diameter of Bolt Holes

DBH

Bolt Circle Diameter

P

Approx. Weight

(lb)

AW

1/2 3 3/4 1 3/8 9/16 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 4 3/4 3 1/4 4
1 4 7/8 2 11/16 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 4 7/8 4 1/2 8
2 6 1/2 3 5/8 1 8 3/4 5 10
2 1/2 7 1/2 4 1/8 1 1/8 8 7/8 5 7/8 15
3 8 1/4 5 1 1/4 8 7/8 6 5/8 20
3 1/2 9 5 1/2 1 3/8 8 1 7 1/4 29
4 10 3/4 6 3/16 1 1/2 8 1 8 1/2 41
5 13 7 5/16 1 3/4 8 1 1/8 10 1/2 68
6 14 8 1/2 1 7/8 12 1 1/8 11 1/2 86
8 16 1/2 10 5/8 2 3/16 12 1 1/4 13 3/4 140
10 20 12 3/4 2 1/2 16 1 3/8 17 321
12 22 15 2 5/8 20 1 3/8 19 1/4 295
14 23 3/4 16 1/4 2 3/4 20 1 1/2 20 3/4 378
16 27 18 1/2 3 20 1 5/8 23 3/4 527
18 29 1/4 21 3 1/4 20 1 3/4 25 3/4 665
20 32 23 3 1/2 24 1 3/4 28 1/2 855
22 34 1/4 25 1/4 3 3/4 24 1 7/8 30 5/8 1000
24 37 27 1/4 4 24 2 33 1250