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Flange - Threaded, ANSI Class 400, B16.5 (in)

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Flange - Threaded, ANSI Class 400, B16.5 (in)

  • 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.
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 6 3/16 1 3/8 5 3/4 2 1 7/16 4.63 8 1 7 7/8 26
5 11 7 5/16 1 1/2 7 2 1/8 1 11/16 5.69 8 1 9 1/4 31
6 12 1/2 8 1/2 1 5/8 8 1/8 2 1/4 1 13/16 6.75 12 1 10 5/8 44
8 15 10 5/8 1 7/8 10 1/4 2 11/16 2 8.75 12 1 1/8 13 67
10 17 1/2 12 3/4 2 1/8 12 5/8 2 7/8 2 3/16 10.88 16 1 1/4 15 1/4 91
12 20 1/2 15 2 1/4 14 3/4 3 1/8 2 3/8 12.94 16 1 3/8 17 3/4 129
14 23 16 1/4 2 3/8 16 3/4 3 5/16 2 1/2 14.19 20 1 3/8 20 1/4 191
16 25 1/2 18 1/2 2 1/2 19 3 11/16 2 11/16 16.19 20 1 1/2 22 1/2 253
18 28 21 2 5/8 21 3 7/8 2 3/4 18.19 24 1 1/2 24 3/4 310
20 30 1/2 23 2 3/4 23 1/8 4 2 7/8 20.19 24 1 5/8 27 378
22 33 25 1/4 2 7/8 25 1/4 4 1/4 3 1/16 22.19 24 1 3/4 29 1/4 464
24 36 27 1/4 3 27 5/8 4 1/2 3 1/4 24.19 24 1 7/8 32 539

 

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