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

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This datasheet is for threaded flanges that have a raised face connection.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2" to 24".
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 150data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

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 1 3/16 5/8 5/8 4 5/8 2 3/8 2
3/4 3 7/8 1 11/16 1/2 1 1/2 5/8 5/8 4 5/8 2 3/4 2
1 4 1/4 2 9/16 1 15/16 11/16 11/16 4 5/8 3 1/8 2
1 1/4 4 5/8 2 1/2 5/8 2 5/16 13/16 13/16 4 5/8 3 1/2 3
1 1/2 5 2 7/8 11/16 2 9/16 7/8 7/8 4 5/8 3 7/8 3
2 6 3 5/8 3/4 3 7/16 1 1 4 3/4 4 3/4 5
2 1/2 7 4 1/8 7/8 3 9/16 1 1/8 1 1/8 4 3/4 5 1/2 7
3 7 1/2 5 15/16 4 1/4 1 3/16 1 3/16 4 3/4 6 8
3 1/2 8 1/2 5 1/2 15/16 4 13/16 1 1/4 1 1/4 8 3/4 7 11
4 9 6 3/16 15/16 5 5/16 1 5/16 1 5/16 8 3/4 7 1/2 13
5 10 7 5/16 15/16 6 7/16 1 7/16 1 7/16 8 7/8 8 1/2 15
6 11 8 1/2 1 7 9/16 1 9/16 1 9/16 8 7/8 9 1/2 19
8 13 1/2 10 5/8 1 1/8 9 11/16 1 3/4 1 3/4 8 7/8 11 3/4 30
10 16 12 3/4 1 3/16 12 1 15/16 1 15/16 12 1 14 1/4 43
12 19 15 1 1/4 14 3/8 2 3/16 2 3/16 12 1 17 64
14 21 16 1/4 1 3/8 15 3/4 2 1/4 2 1/4 12 1 1/8 18 3/4 85
16 23 1/2 18 1/2 1 7/16 18 2 1/2 2 1/2 16 1 1/8 21 1/4 93
18 25 21 1 9/16 19 7/8 2 11/16 2 11/16 16 1 1/4 22 3/4 120
20 27 1/2 23 1 11/16 22 2 7/8 2 7/8 20 1 1/4 25 155
22 29 1/2 25 1/4 1 13/16 24 3 1/8 3 1/8 20 1 3/8 27 1/4 159
24 32 27 1/4 1 7/8 26 1/8 3 1/4 3 1/4 20 1 3/8 29 1/2 210