英制钢管及螺纹规格表.pdf
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1、1015202532405065801001/41/23/411 1/4 1 1/222 1/234钢管A17.221.326.933.742.448.360.376.188.9114.3外径B14182532384557768910812515020025030035040045050060056810121416182024钢管A139.7168.3219.1273323.9355.36406.4457508610外径B133159219273325377426480530630700800900100012001400160018002000283236404856647280钢管A71
2、1813914101612191422162618292032外径B720820920102012201420162018202020 英 制(英寸)公称通径DN 英 制(英寸)钢管的公称通径DN和外径钢管的公称通径DN和外径 的对照表的对照表 本表中的钢管外径有A、B两个系列,A系列为国际通用系列(俗称英制管);B系列为国内沿用系列(俗称公制管)。公称通径DN 英 制(英寸)公称通径DN大径螺距每英寸牙数中径小径内螺纹底mmmmtpimmd=Dpd2=D2G 1/81/89.730.907289.1478.5660.5818.7G 1/41/413.21.3371912.301 11.450
3、.85611.6G 3/83/816.71.3371915.806 14.950.85615G 1/21/2211.8141419.793 18.631.16219G 5/85/822.91.8141421.749 20.591.16220.75G 3/43/426.41.8141425.279 24.121.16224.5G 7/87/830.21.8141429.039 27.881.16228G 1133.22.3091131.7730.291.47930.5G 1 1/81 1/837.92.3091136.418 34.941.47935G 1 1/41 1/441.92.30911
4、40.431 38.951.47939.5G 1 3/81 3/844.32.3091142.844 41.371.47941.5G 1 1/21 1/247.82.3091146.324 44.851.47945G 1 3/41 3/453.72.3091152.267 50.791.47951G 2259.62.3091158.135 56.661.47957G 2 1/42 1/465.72.3091164.231 62.751.47963G 2 1/22 1/275.22.3091173.705 72.231.47972.5G 2 3/42 3/481.52.3091180.055 7
5、8.581.47979G 3387.92.3091186.405 84.931.47985.5G 3 1/43 1/4942.3091192.501 91.021.47991G 3 1/23 1/21002.3091198.351 97.371.47997.75G 3 3/43 3/41072.30911105.2103.71.479104G 441132.30911111.55 110.11.479110.5G 4 1/24 1/21262.30911124.25 122.81.479123G 551382.30911136.95 135.51.479136G 5 1/25 1/21512.
6、30911149.65 148.21.479148.5G 661642.30911162.35 160.91.479161.5螺纹代号英制55圆柱管螺纹的尺寸英制55圆柱管螺纹的尺寸British Pipe Thread(惠氏管螺纹)-圆柱(BSPP/BSPF)(国内管道、阀门通用连接螺纹)螺纹牙高大径螺距每英寸牙数中径小径螺纹牙高圆弧尺寸 内螺纹底英寸 mmmmtpimmhrmmd=Dpd2=D2R 1/161/167.720.907287.1426.5610.5810.1256.4R 1/81/89.730.907289.1478.5660.5810.1258.4R 1/41/413.21
7、.3371912.301 11.450.8560.18411.2R 3/83/816.71.3371915.806 14.950.8560.18414.75R 1/21/2211.8141419.793 18.631.1620.24918.25R 3/43/426.41.8141425.279 24.121.1620.24923.75R 1133.22.3091131.7730.291.4790.31730R 1 1/41 1/441.92.3091140.431 38.951.4790.31738.5R 1 1/21 1/247.82.3091146.324 44.851.4790.3174
8、4.5R 2259.62.3091158.135 56.661.4790.31756R 2 1/22 1/275.22.3091173.705 72.231.4790.31771R 3387.92.3091186.405 84.931.4790.31785.5R 441132.30911111.55 110.11.4790.317110.5R 551382.30911136.95 135.51.4790.317136R 661642.30911162.35 160.91.4790.317161.5螺纹代号英制55圆锥管螺纹的尺寸英制55圆锥管螺纹的尺寸(国内管道、阀门通用密封螺纹)mmd1=D
9、1mmh孔直径mmmmd1=D1mmmm孔直径公称尺寸公称尺寸英寸大径螺距每英寸牙数中径小径螺纹牙高内螺纹底mmmmtpimmhmmd=Dpd2=D2 d1=D11/16BSW1.590.423601.3151.050.271.153/32BSW2.380.529482.0411.7030.3381.91/8BSW3.180.635402.7682.3620.4062.55/32BSW3.970.793323.4592.9520.5073.23/16BSW4.761.058244.0843.4070.6773.77/32BSW5.561.058244.8784.2010.6774.51/4BS
10、W6.351.27205.5374.7240.8135.15/16BSW7.941.411187.0346.1310.9046.53/8BSW9.531.588168.5097.4921.0177.97/16BSW11.11.814149.9518.7891.1629.21/2BSW12.72.1171211.3459.991.35510.45/8BSW15.92.3091114.397 12.921.47913.43/4BSW19.12.541017.42415.81.62716.257/8BSW22.22.822920.419 18.611.80719.251BSW25.43.175823
11、.368 21.342.033221 1/8BSW28.63.629726.253 23.932.32424.51 1/4BSW31.83.629729.42827.12.32427.251 3/8BSW34.94.233632.215 29.512.71130.251 1/2BSW38.14.233635.391 32.682.71133.51 5/8BSW41.35.08538.024 34.773.25335.51 3/4BSW44.55.08541.199 37.953.25338.51 7/8BSW47.65.6454 1/244.01240.43.61441.252BSW50.85
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