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Flange - Weld Neck, ANSI Class 150, B16.5 RTJ (in)

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  • 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 rjf b16.5 150 400Data rtj b16.5 150 2500data wnf rjf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Bore

D

Diameter of Hub at Weld

H

Diameter of Hub at Base

J

Length of Hub

K

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 - - - - - - - - - - - - -
3/4 - - - - - - - - - - - - -
1 4 1/4 1/2 1.049 1.315 1 15/16 2 3/16 2 1/2 1 7/8 11/32 1/4 4 5/8 3 1/8
1 1/4 4 5/8 9/16 1.380 1.660 2 5/16 2 1/4 2 7/8 2 1/4 11/32 1/4 4 5/8 3 1/2
1 1/2 5 5/8 1.610 1.900 2 9/16 2 7/16 3 1/4 2 9/16 11/32 1/4 4 5/8 3 7/8
2 6 11/16 2.067 2.375 3 1/16 2 1/2 4 3 1/4 11/32 1/4 4 3/4 4 3/4
2 1/2 7 13/16 2.469 2.875 3 9/16 2 3/4 4 3/4 4 11/32 1/4 4 3/4 5 1/2
3 7 1/2 7/8 3.068 3.500 4 1/4 2 3/4 5 1/4 4 1/2 11/32 1/4 4 3/4 6
3 1/2 8 1/2 7/8 3.548 4.00 4 13/16 2 13/16 6 1/16 5 3/16 11/32 1/4 8 3/4 7
4 9 7/8 4.026 4.500 5 5/16 3 6 3/4 5 7/8 11/32 1/4 8 3/4 7 1/2
5 10 7/8 5.047 5.563 6 7/16 3 1/2 7 5/8 6 3/4 11/32 1/4 8 7/8 8 1/2
6 11 15/16 6.065 6.625 7 9/16 3 1/2 8 5/8 7 5/8 11/32 1/4 8 7/8 9 1/2
8 13 1/2 1 1/16 7.981 8.625 9 11/16 4 10 3/4 9 3/4 11/32 1/4 8 7/8 11 3/4
10 16 1 1/8 10.020 10.750 12 4 13 12 11/32 1/4 12 1 14 1/4
12 19 1 3/16 12.00 12.750 14 3/8 4 1/2 16 15 11/32 1/4 12 1 17
14 21 1 5/16 13.25 14.00 15 3/4 5 16 3/4 15 5/8 11/32 1/4 12 1 1/8 18 3/4
16 23 1/2 1 3/8 15.25 16.00 18 5 19 17 7/8 11/32 1/4 16 1 1/8 21 1/4
18 25 1 1/2 17.25 18.00 19 7/8 5 1/2 21 1/2 20 3/8 11/32 1/4 16 1 1/4 22 3/4
20 27 1/2 1 5/8 19.25 20.00 22 5 11/16 23 1/2 22 11/32 1/4 20 1 1/4 25
22 29 1/2 1 3/4 21.25 22.00 24 5 7/8 25 1/2 24 1/4 11/32 1/4 20 1 3/8 27 1/4
24 32 1 13/16 23.25 24.00 26 1/8 6 28 26 1/2 11/32 1/4 20 1 3/8 29 1/2

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