» Flange & Fitting » ASME B16.47 Series B Flanges Class 75

ASME B16.47 Series B Flanges Class 75

September 5, 2019

Technical drawings

75LB WN Flange b16.47 sb drawing

Typical drawing for 75# welding neck flange with RF, in accordance with ASME B16.47 Series B.

75LB BL Flange b16.47 sb drawing

Typical drawing for class 75 blind flange with RF, in accordance with ASME B16.47 Series B.

Dimensions

NPSDKGX
26760723.9705676
28815774.7756727
30865825.5806778
32915876.3857829
34965927.1908879
361035992.2965935
3810851043.01016986
4011351093.810671037
4211851144.611181087
4412501203.311751140
4613001254.112261191
4813551304.912761241
5014051355.713271294
5214551409.713781345
5415101460.514291397
5615751520.814861451
5816251571.615371502
6016751622.415881553
*D: outside diameter of flange; K: diameter of bolt circle; G: outside diameter of raised face; X: diameter of hub of  WN flange. All dimensions are in mm units.

NPSATBLTWNY
26661.931.931.957
28712.731.931.960
30763.531.931.964
32814.335.033.568
34865.136.633.572
36915.940.935.084
38966.743.036.687
401017.543.036.691
421068.346.338.294
441119.147.741.4103
461169.949.343.0106
481220.752.544.6110
501271.554.146.2114
521322.355.746.2119
541373.158.947.8124
561423.960.449.3133
581474.762.050.9137
601525.565.254.1143
*A: diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange; Y: length through hub of WN; t: 2mm height of RF for Class 75 Series B flange. All dimensions are in mm units.

NPSndlr
26363/45/88
28403/45/88
30443/45/88
32483/45/88
34523/45/88
36407/83/410
38407/83/410
40447/83/410
42487/83/410
443617/810
464017/810
484417/810
504417/810
524817/810
544817/810
56401-1/8111
58441-1/8111
60441-1/8111
* n: number of bolt holes; d: diameter of bolt hole; l: diameter of bolt; r: minimum fillet radius for WN. d and l are in inch units,while r is in mm unit.

ASME B16.47 Series A Flanges, by Class
150300400600900-
ASME B16.47 Series B Flanges, by Class
75150300400600900
*Click to view the dimensions for ASME B16.47 Series B welding neck flanges and blind flanges of each pressure rating.

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