NECK FLANGES ACCORDING TO ANSI B16.5

class 150Ibs, nominal pressure PN 20

nominal diameter Inchesouter diameter of the pipeflangesnumber of holes
dzDzDodoHgD2sfillisterweight kgn
D1f
1/2"21,388,960,515,747,811,230,22,8035,11,60,484
3/4"26,798,669,915,752,312,738,12,9542,91,60,714
1"33,5108,079,215,755,614,249,33,4050,81,61,014
1 1/4"42,2117,388,915,757,215,758,73,5563,51,61,334
1 1/2"48,3127,098,615,762,017,565,03,7073,21,61,724
2"60,3152,4120,719,163,519,177,73,9591,91,62,584
2 1/2"73,2177,8139,719,169,922,490,45,25104,61,64,114
3"88,9190,5152,419,169,923,9108,05,45127,01,64,924
3 1/2"101,6215,9177,819,171,423,9122,25,70139,71,66,088
4"114,3228,6190,519,176,223,9134,95,95157,21,66,848
5"141,2254,0215,922,488,923,9163,66,95185,71,68,568
6"168,3279,4241,322,488,925,4192,07,10215,91,610,68
8"219,1342,9298,522,4101,628,4246,18,25269,71,617,68
10"273,1406,4362,025,4101,630,4304,89,30323,91,624,012
12"323,9482,6431,825,4114,331,8365,39,55381,01,636,512
14"355,6533,4476,328,4127,035,1400,1dimensions to negotiated412,81,648,412
16"406,4596,9539,828,4127,036,6457,2469,91,660,616
18"457,2635,0577,931,8139,739,6505,0533,41,668,316
20"508,0698,5635,031,8144,542,9558,8584,21,684,520
24"609,6812,8749,335,1152,447,8663,4692,21,6115,020

 

class 300Ibs, nominal pressure PN 50

nominal diameter Inchesouter diameter of the pipeflangenumber of holes
dzDzDodoHgD2sthreadweight kgn
D1f
1/2"21,395,266,515,752,314,238,12,8035,01,60,754
3/4"26,7117,382,515,757,115,747,72,9542,91,61,264
1"33,5123,988,915,762,017,553,83,4050,81,61,524
1 1/4"42,2133,398,515,765,019,063,53,5563,51,62,034
1 1/2"48,3155,4114,315,768,320,669,83,7073,11,62,894
2"60,3165,1127,019,169,822,384,03,9091,91,63,48
2 1/2"73,2190,5149,319,176,225,4100,05,20104,61,65,178
3"88,9209,5168,119,179,228,4117,35,45127,01,66,938
3 1/2"101,6228,6184,119,181,030,2133,35,70139,71,68,678
4"114,3254,0200,119,185,831,7146,05,95157,21,611,28
5"141,2279,4234,922,498,535,0177,86,45185,61,615,18
6"168,3217,5269,722,498,536,5206,27,10215,91,619,112
8"219,1381,0330,222,4111,241,1260,38,25269,71,629,912
10"273,1444,5387,325,4117,347,7320,59,25323,81,642,716
12"323,9520,7450,825,4130,050,8374,69,50381,01,661,816
14"355,6584,2514,328,4142,753,8425,4dimensions to negotiated412,71,685,820
16"406,4647,7571,528,4146,057,1482,6469,91,610620
18"457,2711,2628,631,8158,760,4533,4533,41,613124
20"508,0774,7685,831,8162,063,5587,2584,21,615824
24"609,6914,4812,835,1168,169,8701,5692,11,623024

 

class 600Ibs, nominal pressure PN 110

nominal diameter Inchesouter diameter of the pipeflangenumber of holes
dzDzDodoHgD2sfillisterweight kgn
D1f
1/2"21,395,366,515,758,720,638,1dimension to negotated35,16,40,874
3/4"26,7117,382,519,163,622,147,842,96,41,454
1"33,5124,088,919,168,423,953,850,86,41,764
1 1/4"42,2133,498,619,172,92763,563,56,42,494
1 1/2"48,3155,4114,322,476,328,869,973,26,43,494
2"60,3165,1127,019,179,631,884,191,96,44,368
2 1/2"73,2190,5149,422,485,634,8101,1104,66,46,438
3"88,9209,6168,122,48938,2117,3127,06,48,538
3 1/2"101,6228,6184,225,492,341,5133,4139,76,410,78
4"114,3273,1215,925,410844,5152,4157,26,417,48
5"141,2330,2266,728,4120,750,9189,0185,76,429,28
6"168,3355,6292,128,4123,754,2222,3215,96,434,912
8"219,1419,1349,331,8139,862273,1269,76,453,912
10"273,1508,0431,835,1158,869,9342,9323,96,486,516
12"323,9558,8489,035,1161,872,9400,1381,06,410320
14"355,6603,3527,138,1171,576,3431,8412,86,412220
16"406,4685,8603,341,1184,282,6495,3469,96,417020
18"457,2743,0654,144,5190,689546,1533,46,420420
20"508,0812,8723,944,5196,995,3609,6584,26,425424
24"609,6939,8838,250,8209,6108717,6692,26,435824

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