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Flanges› Dimensions› SANS 1123› 4000 kPa Pressure› Type 02 Steel Welding Neck Flange

SANS 1123
4000 kPa Type 02 Steel Welding Neck Flange

SANS 1123 250 kPa Type 5 Flange Technical Drawing
DIMENSIONAL DATA
DN Pipe Outside
Diameter (OD) 		Outside Diameter
of Flange (D) 		Thickness of
flange minimum
(b) 		Boss Height (h) Diameter of
Raised Face (d3) 		Height of
Raised Face (f) 		Bolt Size (M) Number of Drilling
Holes (No.) 		Bolt Hole
diameter (d1) 		Pitch Circle
of Bolt
Holes (d) 		Neck Diameter (d2) Length of
Welding Neck (h1) 		Radius (r)
10 17,2 90 12 35 40 2 M12 4 14 60 28 6 4
15 21,3 95 14 38 45 2 M12 4 14 65 32 6 4
20 26,9 105 14 40 58 2 M12 4 14 75 40 6 4
25 33,7 115 16 40 68 2 M12 4 14 85 46 6 4
32 42,4 140 18 42 78 2 M16 4 18 100 56 6 6
40 48,3 150 18 45 88 3 M16 4 18 110 64 7 6
50 60,3 165 20 48 102 3 M16 4 18 125 75 8 6
65 76,1 185 22 52 122 3 M16 8 18 145 90 10 6
80 88,9 200 24 58 138 3 M16 8 18 160 105 12 8
100 114,3 235 24 65 162 3 M20 8 22 190 134 12 8
125 139,7 270 26 68 188 3 M24 8 26 200 162 12 8
150 168,3 300 28 75 218 3 M24 8 26 250 192 12 10
1751) 193,7 350 32 82 260 3 M24 12 26 295 218 15 10
200 219,1 375 34 88 285 3 M24 12 26 320 244 16 10
2251) 244,5 420 36 100 315 3 M30 12 33 355 275 18 12
250 273,0 450 38 105 345 3 M30 12 33 385 306 18 12
300 323,9 515 42 115 410 4 M30 16 33 450 362 18 12
350 355,6 580 46 125 465 4 M30 16 33 510 408 20 12
400 406,4 660 50 135 535 4 M36 16 39 585 462 20 12
450 457,0 685 52 140 575 4 M36 20 39 610 510 20 12
500 508,0 755 52 140 615 4 M36 20 39 670 562 20 12
1) Non-preferred size.

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