弯头尺寸标准及壁厚系列等级

管件的种类和代号,,,,DN与NPS对照表,,,,,,,,,,,,,,,

品种,类别,代号,,DN,NPS,注：NPS,,,,,,,,,,,,,

45°弯头,长半径,45E(L),,15,1//2,大于4时,,,,,,,,,,,,,

弯头,长半径,90E(L),,20,3//4,DN=25X,,,,,,,,,,,,,

,短半径,90E(S),,25,1,（NPS）,,,,,,,,,,,,,

,长半径异径,90E(L)R,,32,11//4,,,,,,,,,,,,,,

180°弯头,长半径,180E(L),,40,11//2,,,,,,,,,,,,,,

,短半径,180E(S),,50,2,,,,,,,,,,,,,,

异径接头,同心,R(C),,65,21//2,,,,,,,,,,,,,,

（大小头）,偏心,R(E),,80,3,,,,,,,,,,,,,,

三通,等径,T(S),,90,31//2,,,,,,,,,,,,,,

,异径,T(R),,100,4,,,,,,,,,,,,,,

四通,等径,CR(S),,公称尺寸DN100，外径为Ⅰ系列，壁厚等级Sch40，材料牌号15CrMo的90°短半径弯头,,,,,,,,,,,,,,,

,异径,CR(R),,DN100-Sch40-15CrMo90E（S）GB/T12459,,,,,,,,,,,,,,,

管帽,,C,,公称尺寸DN100X80，外径为Ⅱ系列，壁厚等级Sch80，材料牌号16Mn的同心异径接头,,,,,,,,,,,,,,,

翻边短接,长型,SE(L),,DN100X80ⅡSch80-16MnR（C）GB/T12459,,,,,,,,,,,,,,,

,短型,SE(S),,公称尺寸DN150，外径为Ⅰ系列，壁厚等级4.5mm，材料0Cr18Ni9的长半径弯头,,,,,,,,,,,,,,,

,,,,DN1150-4.5-0Cr18Ni990E(L)GB/T12459,,,,,,,,,,,,,,,

与管件连接的无缝钢管壁厚分级表,,,,,,,,,,,,,,,,,,,

公称尺寸,,外径,公,称,壁,厚,,,,,,,,,,,,,

DN,PN,,Sch5S,Sch10S,Sch40S,Sch80S,Sch10,Sch20,Sch30,STD,Sch40,Sch60,XS,Sch80,Sch100,Sch120,Sch140,Sch160,XXS

6,1//8,10.3,,1.24,1.73,2.41,,,,1.73,1.73,,2.41,2.41,,,,,

8,1//4,13.7,,1.65,2.24,3.02,,,,2.24,2.24,,3.02,3.02,,,,,

10,3//8,17.1,,1.65,2.31,3.2,,,,2.31,2.31,,3.2,3.2,,,,,

15,1//2,21.3,1.65,2.11,2.77,3.73,,,,2.77,2.77,,3.73,3.73,,,,4.78,7.47

20,3//4,26.7,1.65,2.11,2.87,3.91,,,,2.87,2.87,,3.91,3.91,,,,5.56,7.82

25,1,33.4,1.65,2.77,3.38,4.55,,,,3.38,3.38,,4.55,4.55,,,,6.35,9.09

32,11//4,42.2,1.65,2.77,3.56,4.85,,,,3.56,3.56,,4.85,4.85,,,,6.35,9.7

40,11//2,48.3,1.65,2.77,3.68,5.08,,,,3.68,3.68,,5.08,5.08,,,,7.14,10.15

50,2,60.3,1.65,2.77,3.91,5.54,,,,3.91,3.91,,5.54,5.54,,,,8.74,11.07

65,21//2,73,2.11,3.05,5.16,7.01,,,,5.16,5.16,,7.01,7.01,,,,9.53,14.02

80,3,88.9,2.11,3.05,5.49,7.62,,,,5.49,5.49,,7.62,7.62,,,,11.13,15.24

90,31//2,101.6,2.11,3.05,5.74,8.08,,,,5.74,5.74,,8.08,8.08,,,,,

100,4,114.3,2.11,3.05,6.02,8.56,,,,6.02,6.02,,8.56,8.56,,11.13,,13.49,17.12

125,5,141.3,2.77,3.4,6.55,9.53,,,,6.55,6.55,,9.53,9.53,,12.7,,15.88,19.05

150,6,168.3,2.77,3.4,7.11,10.97,,,,7.11,7.11,,10.97,10.97,,14.27,,18.26,21.95

200,8,219.1,2.77,3.76,8.18,12.7,,6.35,7.04,8.18,8.18,10.31,12.7,12.7,15.09,18.26,20.62,23.01,22.23

250,10,273,3.4,4.19,9.27,※12.7,,6.35,7.8,9.27,9.27,2.7,12.7,15.09,18.26,21.44,25.4,28.58,25.4

300,12,323.8,3.96,※4.57,※9.53,※12.7,6.35,6.35,8.38,9.53,10.31,14.27,12.7,17.48,21.44,25.4,28.58,33.32,25.4

350,14,355.6,3.96,※4.78,,,6.35,7.92,9.53,9.53,11.13,15.09,12.7,19.05,23.83,27.79,31.75,35.71,

400,16,406.4,4.19,※4.78,,,6.35,7.92,9.53,9.53,12.7,16.66,12.7,21.44,26.19,30.96,36.53,40.49,

450,18,457,4.19,※4.78,,,6.35,7.92,11.13,9.53,14.27,19.05,12.7,23.83,29.36,34.93,39.67,45.24,

500,20,508,4.78,※5.54,,,6.35,9.53,12.7,9.53,15.09,20.62,12.7,26.19,32.54,38.1,44.45,50.01,

550,22,559,4.78,※5.54,,,6.35,9.53,12.7,9.53,,22.23,12.7,28.58,34.93,41.28,47.63,53.98,

600,24,610,5.54,6.35,,,6.35,9.53,14.27,9.53,17.48,24.61,12.7,30.96,38.89,46.02,52.37,59.54,

650,26,660,,,,,7.92,12.7,,9.53,,,12.7,,,,,,

700,28,711,,,,,7.92,12.7,15.88,9.53,,,12.7,,,,,,

750,30,762,6.35,7.92,,,7.92,12.7,15.88,9.53,,,12.7,,,,,,

800,32,813,,,,,7.92,12.7,15.88,9.53,17.48,,12.7,,,,,,

STD为标准管壁厚系列代号，XS为加强管壁厚系列代号，XXS为特加强管壁厚系列代号,,,,,,,,,,,,,,,,,,,

Sch数字后带S者为ASMEB36.19M标准中规定数据;不带者为ASMEB36.10M标准中规定数据,,,,,,,,,,,,,,,,,,,

带※的壁厚数据，在ASMEB36.19M标准中注明与ASMEB36.10M不同,,,,,,,,,,,,,,,,,,,

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,长半径弯头尺寸,,,,,,短半径弯头尺寸,,,,等径三通和四通尺寸,,,,,,,,

公称尺寸,坡口处外径,D,中心至端面,,,公称尺寸,坡口处外径,D,中心至端面,,公称尺寸,坡口处外径,D,中心至端面,,,,,

DN,Ⅰ系列,Ⅱ系列,90°弯头A,45°弯头B,,DN,Ⅰ系列,Ⅱ系列,90°弯头A,,DN,Ⅰ系列,Ⅱ系列,管程C,出口M,,,,

15,21.3,18,38,16,,25,33.7,32,25,,15,21.3,18,25,25,,,,

20,26.9,25,38,19,,32,42.4,38,32,,20,26.9,25,29,29,,,,

25,33.7,32,38,22,,40,48.3,45,38,,25,33.7,32,38,38,,,,

32,42.4,38,48,25,,50,60.3,57,51,,32,42.4,38,48,48,,,,

40,48.3,45,57,29,,65,73,76,64,,40,48.3,45,57,57,,,,

50,60.3,57,76,35,,80,88.9,89,76,,50,60.3,57,64,64,,,,

65,73,76,95,44,,90,101.6,,89,,65,73,76,76,76,,,,

80,88.9,89,114,51,,100,114.3,108,102,,80,88.9,89,86,86,,,,

90,101.6,,133,57,,125,141.3,133,127,,90,101.6,,95,95,,,,

100,114.3,108,152,64,,150,168.3,159,152,,100,114.3,108,105,105,,,,

125,141.3,133,190,79,,200,219.1,219,203,,125,141.3,133,124,124,,,,

150,168.3,159,229,95,,250,273,273,254,,150,168.3,159,143,143,,,,

200,219.1,219,305,127,,300,323.9,325,305,,200,219.1,219,178,178,,,,

250,273,273,381,159,,350,355.6,377,356,,250,273,273,216,216,,,,

300,323.9,325,457,190,,400,406.4,426,406,,300,323.9,325,254,254,,,,

350,355.6,377,533,222,,450,457,480,457,,350,355.6,377,279,279,,,,

400,406.4,426,610,254,,500,508,530,508,,400,406.4,426,305,305,,,,

450,457,480,386,286,,550,559,,559,,450,457,480,343,343,,,,

500,508,530,762,318,,600,610,630,610,,500,508,530,381,381,,,,

550,559,,838,343,,,,,,,550,559,,419,419,,,,

600,610,630,914,381,,,,,,,600,610,630,432,432,,,,

650,660,,991,406,,,,,,,650,660,,495,495,,,,

700,711,720,1067,438,,,,,,,700,711,720,521,521,,,,

750,762,,1143,470,,,,,,,750,762,,559,559,,,,

800,813,820,1219,502,,,,,,,800,813,820,597,597,,,,

,,,,,,,,,,M值,1.适用于DN600及其以下的四通,,,,,,,,

,,,,,,,,,,,2.DN650及以上的三通和四通，推荐但不要求采用M,,,,,,,,

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,,,,,,,管帽尺寸,,,,,,,,,,,,

,,,,,公称尺寸,坡口处外径,D,长度,长度E时,长度,,,,,,,,,

,,,,,DN,Ⅰ系列,Ⅱ系列,E,极限壁厚,E1,,,,,,,,,

,,,,,15,21.3,18,25,4.57,25,,,,,,,,,

,,,,,20,26.9,25,25,3.81,25,,,,,,,,,

,,,,,25,33.7,32,38,4.57,38,,,,,,,,,

,,,,,32,42.4,38,38,4.83,38,,,,,,,,,

,,,,,40,48.3,45,38,5.08,38,,,,,,,,,

,,,,,50,60.3,57,38,5.59,44,,,,,,,,,

,,,,,65,73,76,38,7.11,51,,,,,,,,,

,,,,,80,88.9,89,51,7.62,64,,,,,,,,,

,,,,,90,101.6,,64,8.13,76,,,,,,,,,

,,,,,100,114.3,108,64,8.64,76,,,,,,,,,

,,,,,125,141.3,133,76,9.65,89,,,,,,,,,

,,,,,150,168.3,159,89,10.92,102,,,