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  Flange Diamensions
 
 
Flange Dimensions
 
Class 150 Valve Flanges
Size NPS(") 1/2 3/4 1 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 24
Size DN(mm) 15 20 25 40 50 65 80 100 150 200 250 300 350 400 450 500 600
RFD RAISED FACE DIA 35 43 51 73 92 105 127 157.5 216 270 324 381 413 470 533.5 584.5 692.5
B BORE DIA 12.5 19 25.4 38 51 64 76 102 152 203 254 305 336 387 438 489 591
O OUT SIDE DIA 89 98 108 127 152.5 178 191 229 279.5 343 406.5 482.5 533.5 597 635 698.5 813
C THICKNESS 10 10.5 11.2 14.5 16 17.5 19 24 25.5 28.5 30.5 32 35 36.5 40 43 47.5
P PCD 60.5 70 79.5 98.5 120.5 139.5 152.5 190.5 241.5 298.5 362 432 476.5 540 578 635 749.5
N No. OF HOLES 4 4 4 4 4 4 4 8 8 8 12 12 12 16 16 20 20
D DRILL DIA 16 16 16 16 19 19 19 19 22 22 25 25 28 28 32 32 35
 
Class 300 Valve Flanges
Size NPS(") 1/2 3/4 1 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 24
RFD RAISED FACE DIA 35 43 51 73 92 105 127 157.5 216 270 324 381 413 470 533.5 584.5 692.5
B BORE DIA 12.5 19 25.4 38 51 64 76 102 152 203 254 305 336 387 432 483 584
O OUT SIDE DIA 95.5 117.5 124 156 165 190.5 209.5 254 317.5 381 444.5 521 584 648 711 775 914.5
C THICKNESS 14.5 16 17.5 20.5 22.5 25.5 28.5 32 36.5 41.5 47.5 51 54 57.5 60.5 63.5 70
P PCD 67.5 82.5 89 114.5 127 149 168.5 200 270 330 387.5 451 514.5 571.5 628.5 686 813
N No. OF HOLES 4 4 4 4 8 8 8 8 12 12 16 16 20 20 24 24 24
D DRILL DIA 16 19 19 22 19 22 22 22 22 25 28 32 32 35 35 35 41
 
Class 600 Valve Flanges
Size NPS(") 1/2 3/4 1 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 24
RFD RAISED FACE DIA 35 43 51 73 92 105 127 157.5 216 270 324 381 413 470 533.5 584.5 692.5
B BORE DIA 12.5 19 25.4 38 51 64 76 102 152 203 254 305 336 387 432 483 584
O OUT SIDE DIA 95.5 117.5 124 156 165 190.5 209.5 273 355.5 419 508 559 603.5 686 743 813 940
C THICKNESS 14.5 16 17.5 22.5 25.5 29 32 38 48 56 63.5 66.5 70 76 83 89 102
P PCD 67 82.5 89 114.5 127 149 168.5 216 292 349.5 432 489 527 603.5 654 724 838
N No. OF HOLES 4 4 4 4 8 8 8 8 12 12 16 20 20 20 20 24 24
D DRILL DIA 16 19 19 22 19 22 22 25 28 32 35 35 38 41 45 45 51
 
Class 900 Valve Flanges
Size NPS(") 1/2 3/4 1 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 24
RFD RAISED FACE DIA 35 43 51 73 92 105 127 157.5 216 270 324 381 413 470 533.5 584.5 692.5
B BORE DIA 12.5 17.5 22 35 48 57 73 98 146 191 238 283 311 356 400 445 534
O OUT SIDE DIA 121 130 149.5 178 216 244.5 241.5 292 381 470 546 610 641.5 705 787.5 857 1041
C THICKNESS 22.5 25.5 28.5 32 38 41 38 44.5 56 63.5 70 79 86 89 102 108 140
P PCD 82.5 89 104 124 165 190.5 190.5 235 317.5 394 470 833.5 559 616 686 749 902
N No. OF HOLES 4 4 4 4 8 8 8 8 12 12 16 20 20 20 20 20 20
D DRILL DIA 22 22 25 28 25 28 25 32 32 38 38 38 41 45 50 54 67
 
Class 1500 Valve Flanges
Size NPS(") 1/2 3/4 1 1½ 2 2½ 3 4 6 8 10 12 14 16 18 20 24
RFD RAISED FACE DIA 35 43 51 73 92 105 127 157.5 216 270 324 381 413 470 533.5 584.5 692.5
B BORE DIA 12.5 17.5 22 35 47.5 57 70 92 135.5 178 222 263.5 289 330 371.5 416 498.5
O OUT SIDE DIA 121 130 149.5 178 216 244.5 267 311 394 483 584 673 749.5 826 914.5 984 1168
C THICKNESS 22.5 25.5 28.5 32 38 41 48 54 83 92 108 124 133.5 146 162 178 203
P PCD 82.5 89 102 124 165 190.5 203 241.5 317.5 394 483 571.5 635 705 775 832 991
N No. OF HOLES 4 4 4 4 8 8 8 8 12 12 12 16 16 16 16 16 16
D DRILL DIA 22 22 25 28 25 28 32 35 38 45 51 54 60 67 73 79 92
 
 
 
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