Flange - Weld Neck, ANSI Class 900, B16.5 (in)

Written by Matt Milbury. Posted in Weld Neck Flange Datasheets

Flange - Weld Neck, ANSI Class 900, ASME B16.5, 1/4" Raised Face (in)

his datasheet is for weld neck flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to 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 wnf b16.5 400 2500data wnf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

D

Diameter of Hub at Weld

H

Diameter of Hub at Base

J

Length of Hub

K

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(lb)

1/2 4 3/4 1 3/8 7/8 * 0.840 1 1/2 2 3/8 4 7/8 3 1/4 7
3/4 5 1/8 1 11/16 1 * 1.050 1 3/4 2 3/4 4 7/8 3 1/2 7
1 5 7/8 2 1 1/8 * 1.315 2 1/16 2 7/8 4 1 4 9
1 1/4 6 1/4 2 1/2 1 1/8 * 1.660 2 1/2 2 7/8 4 1 4 3/8 10
1 1/2 7 2 7/8 1 1/4 * 1.900 2 3/4 3 1/4 4 1 1/8 4 7/8 14
2 8 1/2 3 5/8 1 1/2 * 2.375 4 1/8 4 8 1 6 1/2 25
2 1/2 9 5/8 4 1/8 1 5/8 * 2.875 4 7/8 4 1/8 8 1 1/8 7 1/2 36
3 9 1/2 5 1 1/2 * 3.500 5 4 8 1 7 1/2 32
3 1/2 - - - - - - - - - - -
4 11 1/2 6 3/16 1 3/4 * 4.500 6 1/4 4 1/2 8 1 1/4 9 1/4 51
5 13 3/4 7 5/16 2 * 5.563 7 1/2 5 8 1 3/8 11 86
6 15 8 1/2 2 3/16 * 6.625 9 1/4 5 1/2 12 1 1/4 12 1/2 110
8 18 1/2 10 5/8 2 1/2 * 8.625 11 3/4 6 3/8 12 1 1/2 15 1/2 187
10 21 1/2 12 3/4 2 3/4 * 10.750 14 1/2 7 1/4 16 1 1/2 18 1/2 268
12 24 15 3 1/8 * 12.750 16 1/2 7 7/8 20 1 1/2 21 372
14 25 1/4 16 1/4 3 3/8 * 14.00 17 3/4 8 3/8 20 1 5/8 22 562
16 27 3/4 18 1/2 3 1/2 * 16.00 20 8 1/2 20 1 3/4 24 1/4 685
18 31 21 4 * 18.00 22 1/4 9 20 2 27 924
20 33 3/4 23 4 1/4 * 20.00 24 1/2 9 3/4 20 2 1/8 29 1/2 1164
22 - - - - - - - - - - -
24 41 27 1/4 5 1/2 * 24.00 29 1/2 11 1/2 20 2 5/8 35 1/2 2107

* To be specified by purchaser.