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Flanges› Dimensions› BS EN› BS EN 1092-1› Type 21 Integral Flange PN 6

BS EN 1092-1
Type 21 Integral Flange PN 6

BS EN 1092-1 Integral Flange PN 2.5 Technical Drawing
DIMENSIONAL DATA
DN Outside Diameter
(D) 		Diameter of
Bolt Circle (K) 		Diameter of
Bolt Hole (L) 		Bolting
Number 		Bolting
Size 		Outside
Diameter
of Neck (A) 		Flange
Thicknes (C2) 		Flange
Thicknes (C3) 		Neck
Diameters (N3) 		Corner
Radius (R1)
10 75 50 11 4 M10 17,2 12 12 20 4
15 80 55 11 4 M10 21,3 12 12 26 4
20 90 65 11 4 M10 26,9 14 14 34 4
25 100 75 11 4 M10 33,7 14 14 44 4
32 120 90 14 4 M12 42,4 14 14 54 6
40 130 100 14 4 M12 48,3 14 14 64 6
50 140 110 14 4 M12 60,3 14 14 74 6
65 160 130 14 4 M12 76,1 14 14 94 6
80 190 150 18 4 M16 88,9 16 16 110 8
100 210 170 18 4 M16 114,3 16 16 130 8
125 240 200 18 8 M16 139,7 18 18 160 8
150 265 225 18 8 M16 168,3 18 18 182 10
200 320 280 18 8 M16 219,1 20 20 238 10
250 375 335 18 12 M16 273,0 22 22 284 12
300 440 395 22 12 M20 323,9 22 22 342 12
350 490 445 22 12 M20 355,6 22 22 392 12
400 540 495 22 16 M20 406,4 22 22 442 12
450 595 550 22 16 M20 457,0 22 22 494 12
500 645 600 22 20 M20 508,0 24 24 544 12
600 755 705 26 20 M24 610,0 30 30 642 12
700 860 810 26 24 M24 711,0 30 30 746 12
800 975 920 30 24 M27 813,0 30 30 850 12
900 1 075 1 020 30 24 M27 914,0 34 34 950 12
1000 1 175 1 120 30 28 M27 1 016,0 38 38 1 050 16
1200 1 405 1 340 33 32 M30 1 219,0 42 42 1 264 16
1400 1 630 1 560 36 36 M33 1 422,0 56 56 1 480 16
1600 1 830 1 760 36 40 M33 1 626,0 63 63 1 680 16
1800 2 045 1 970 39 44 M36 1 829,0 69 69 1 878 16
2000 2 265 2 180 42 48 M39 2 032,0 74 74 2 082 16
2200 2 475 2 390 42 52 M39 2 235,0 81 81 — 18
2400 2 685 2 600 42 56 M39 2 438,0 87 87 — 18
2600 2 905 2 810 48 60 M45 2 620,0 91 91 — 18
2800 3 115 3 020 48 64 M45 2 820,0 101 101 — 18
3000 3 315 3 220 48 68 M45 3 020,0 102 102 — 18
3200 3 525 3 430 48 72 M45 3 220,0 106 106 — 20
3400 3 735 3 640 48 76 M45 3 420,0 110 110 — 20
3600 3 970 3 860 56 80 M52 3 620,0 124 124 — 20
TABLE NOTE

a) To be specified by the purchaser.

b) For flanges Type 21, the outside hub diameter approximately corresponds to the outside pipe diameter. The nominal values of dimensions A, N3 and R1, and their tolerances, are included for guidance only.

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