Flange - Threaded, ANSI Class 600, 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 b16.5 400 2500data 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

Diameter of Bore

S

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 1 1/2 7/8 5/8 0.93 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1 7/8 1 5/8 1.14 4 3/4 3 1/4 3
1 4 7/8 2 11/16 2 1/8 1 1/16 11/16 1.41 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 2 1/2 1 1/8 13/16 1.75 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 2 3/4 1 1/4 7/8 1.99 4 7/8 4 1/2 7
2 6 1/2 3 5/8 1 3 5/16 1 7/16 1 1/8 2.50 8 3/4 5 9
2 1/2 7 1/2 4 1/8 1 1/8 3 15/16 1 5/8 1 1/4 3.00 8 7/8 5 7/8 13
3 8 1/4 5 1 1/4 4 5/8 1 13/16 1 3/8 3.63 8 7/8 6 5/8 16
3 1/2 9 5 1/2 1 3/8 5 1/4 1 15/16 1 9/16 4.13 8 1 7 1/4 21
4 10 3/4 6 3/16 1 1/2 6 2 1/8 1 5/8 4.63 8 1 8 1/2 37
5 13 7 5/16 1 3/4 7 7/16 2 3/8 1 7/8 5.69 8 1 1/8 10 1/2 63
6 14 8 1/2 1 7/8 8 3/4 2 5/8 2 6.75 12 1 1/8 11 1/2 80
8 16 1/2 10 5/8 2 3/16 10 3/4 3 2 1/4 8.75 12 1 1/4 13 3/4 115
10 20 12 3/4 2 1/2 13 1/2 3 3/8 2 9/16 10.88 16 1 3/8 17 177
12 22 15 2 5/8 15 3/4 3 5/8 2 3/4 12.94 20 1 3/8 19 1/4 215
14 23 3/4 16 1/4 2 3/4 17 3 11/16 2 7/8 14.19 20 1 1/2 20 3/4 259
16 27 18 1/2 3 19 1/2 4 3/16 3 1/16 16.19 20 1 5/8 23 3/4 366
18 29 1/4 21 3 1/4 21 1/2 4 5/8 3 1/8 18.19 20 1 3/4 25 3/4 476
20 32 23 3 1/2 24 5 3 1/4 20.19 24 1 3/4 28 1/2 612
22 34 1/4 25 1/4 3 3/4 26 1/2 5 1/4 3 7/16 22.19 24 1 7/8 30 5/8 643
24 37 27 1/4 4 28 1/4 5 1/2 3 5/8 24.19 24 2 33 876