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British Standard MS Flanges

Table D Flanges

Nominal Size OD
mm. 		I.D.
mm.		 PCD
mm.		 No. of
Hole		 Hole
Size mm.		 Thickness
mm.
1/2" 95.00 23.00 66.50 4 14.00 4.50
3/4" 101.50 28.00 73.00 4 14.00 4.50
1" 114.00 35.00 82.50 4 14.00 4.50
1 1/4" 120.50 43.50 87.00 4 14.00 6.50
1 1/2" 133.00 49.50 98.50 4 14.00 6.50
2" 152.00 62.00 114.00 4 17.50 8.00
2 1/2" 165.00 78.00 127.00 4 17.50 8.00
3" 184.00 91.00 146.00 4 17.50 9.50
3 1/2" 203.00 103.50 165.00 4 17.50 9.50
4" 216.00 115.50 178.00 4 17.50 9.50
5" 254.00 143.00 209.50 8 17.50 12.50
6" 279.50 167.00 235.00 8 17.50 12.50
8" 336.50 222.00 292.00 8 17.50 12.50
10" 406.50 276.00 355.50 8 19.00 15.50
12" 457.00 326.00 406.50 12 19.00 15
14" 527.00 360.00 470.00 12 22.00 20
16" 577.50 --- 520.50 12 22.00 20
18" 641.00 --- 584.00 12 22.00 20

Table E Flanges

Nominal Size OD
mm. 		I.D.
mm.		 PCD
mm.		 No. of
Hole		 Hole
Size mm.		 Thickness
mm.
1/2" 95.00 23.00 66.50 4 14.00 6.50
3/4" 101.50 28.00 73.00 4 14.00 6.50
1" 114.00 35.00 82.50 4 14.00 7.00
1 1/4" 120.50 43.50 87.00 4 14.00 8.00
1 1/2" 133.50 49.50 98.50 4 14.00 8.50
2" 152.50 62.00 114.00 4 17.50 9.50
2 1/2" 165.00 78.00 127.00 4 17.50 10.00
3" 184.00 91.00 146.00 4 17.50 11.00
3 1/2" 203.00 103.50 165.00 8 17.50 12.00
4" 216.00 115.50 178.00 8 17.50 12.50
5" 254.00 143.00 209.50 8 17.50 14.00
6" 279.50 167.00 235.00 8 22.00 17.50
7" 305.00 -- 260.00 8 22.00 19.00
8" 336.50 222.00 292.00 8 22.00 19.00
9" 368.00 -- 324.00 12 22.00 20.50
10" 406.50 276.00 355.50 12 22.00 22.00
12" 457.00 326.00 406.50 12 25.00 25.00
14" 527.00 360.00 470.00 12 25.00 25.00

Table F Flanges

Nominal Size OD
mm. 		I.D.
mm.		 PCD
mm.		 No. of
Hole		 Hole
Size mm.		 Thickness
mm.
1/2" 95.00 23.00 66.50 4 14.00 9.50
3/4" 101.50 28.00 73.00 4 14.00 9.50
1" 120.50 35.00 87.00 4 17.50 9.50
1 1/4" 133.50 43.50 98.50 4 17.50 12.50
1 1/2" 139.50 49.50 104.50 4 17.50 12.50
2" 165.00 62.00 127.00 4 17.50 15.50
2 1/2" 184.00 78.00 146.00 8 17.50 15.50
3" 203.00 91.00 165.00 8 17.50 15.50
3 1/2" 216.00 103.50 178.00 8 17.50 19.00
4" 228.50 115.50 190.50 8 17.50 19.00
5" 279.50 143.00 235.00 8 22.00 22.00
6" 305.00 167.00 260.00 12 22.00 22.00
8" 368.00 222.00 323.50 12 22.00 25.00
10" 432.00 276.00 381.00 12 25.00 25.00
12" 489.00 326.00 438.00 16 25.00 28.00
14" 552.50 360.00 495.00 16 28.00 31.00
16" 609.50 -- 552.50 20 28.00 31.00
18" 673.00 -- 609.50 20 28.00 34.50

Table H Flanges

Nominal Size OD
mm. 		I.D.
mm.		 PCD
mm.		 No. of
Hole		 Hole
Size mm.		 Thickness
mm.
1/2" 114.00 23.00 82.50 4 17.50 12.50
3/4" 114.00 28.00 82.50 4 17.50 12.50
1" 120.50 35.00 87.00 4 17.50 14.00
1 1/4" 133.50 43.50 98.50 4 17.50 17.50
1 1/2" 139.50 49.50 104.50 4 17.50 17.50
2" 165.00 62.00 127.00 4 17.50 19.00
2 1/2" 184.00 78.00 146.00 8 17.50 19.00
3" 203.00 91.00 165.00 8 17.50 22.00
3 1/2" 216.00 103.50 177.50 8 17.50 22.00
4" 228.50 115.50 190.50 8 17.50 25.00
5" 279.50 143.00 235.00 8 22.00 28.00
6" 305.00 167.00 260.00 12 22.00 28.00
8" 368.00 222.00 323.50 12 22.00 31.00
10" 432.00 276.00 381.00 12 25.00 34.50
12" 489.00 326.00 438.00 16 25.00 38.00
14" 552.50 360.00 495.00 16 28.00 41.00
16" 609.50 -- 552.50 20 28.00 44.00
18" 673.00 -- 609.50 20 31.00 47.50