Dimensions of Class 600 RF Orifice WN Flanges

Expired

Dimensions of Class 600 RF Orifice WN Flanges as per ASME B16.36.
Nominal Pipe Size, Diameter of Bolt Hole and Diameter of Stud Bolts are specified in inches.
All other dimensions are in "mm" unless noted otherwise.

Dimensions of Orifice WN Flanges

NPS
inch		 OD
of
Flange
(O)		 Dia
of
Raised
Face
(R)		 Min
Thk
of
Flange
(T)		 Weld
Neck
Length
(Y)		 Hub
Dia
at
Base
(X)		 Hub
Dia
at
End
(A)		 Weld
Neck
Bore
(B)		 Dia
of
Tap
(Tt)

Bolt
Circle

 No.
of
Bolt
Holes		 Dia
of
Bolt
Holes		 Dia
of
Bolts		 Stud
Bolt
Length
1 125 50.8 36.6 81 54 33.5 (1) 6.4 88.9 4 11/16 5/8 125
1-1/2 155 73 36.6 84 70 48.3 (1) 6.4 114.3 4 13/16 3/4 135
2 165 92.1 36.6 84 84 60.3 (1) 6.4 127 8 11/16 5/8 125
2-1/2 190 104.8 36.6 87 100 73 (1) 6.4 149.2 8 13/16 3/4 135
3 210 127 36.6 87 117 88.9 (1) 9.5 168.3 8 13/16 3/4 135
4 275 157.2 38.1 102 152 114.3 (1) 12.7 215.9 8 1 7/8 150
6 355 215.9 47.7 117 222 168.3 (1) 12.7 292.1 12 1-1/8 1 180
8 420 269.9 55.6 133 273 219.1 (1) 12.7 349.2 12 1-1/4 1-1/8 195
10 510 323.8 63.5 152 343 273 (1) 12.7 431.8 16 1-3/8 1-1/4 220
12 560 381 66.7 156 400 323.8 (1) 12.7 489 20 1-3/8 1-1/4 230
14 605 412.8 69.9 165 432 355.6 (1) 12.7 527 20 1-1/2 1-3/8 240
16 685 469.9 76.2 178 495 406.4 (1) 12.7 603.2 20 1-5/8 1-1/2 260
18 745 533.4 82.6 184 546 457.2 (1) 12.7 654 20 1-3/4 1-5/8 280
20 815 584.2 88.9 190 610 508 (1) 12.7 723.9 24 1-3/4 1-5/8 300
24 940 692.2 101.6 203 718 609.6 (1) 12.7 838.2 24 2 1-7/8 335

Note - (1) : Bore diameter of Orfice Flange (B) shall be specified by Purchaser.

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