公英制铜管对照表

普通壁厚管 理论质量 （kg/m 加厚壁厚管 理论质量 （kg/m dg61/8″φ10.0*2φ10.0*2.50.46 dg81/4″φ13.5*2.250.62φ13.5*2.750.73 dg103/8″φ17*2.250.82φ17*2.750.97 dg151/2″φ21.25*2.751.25φ21.25*3.251.45 dg203/4″φ26.75*2.751.63φ26.75*3.252.01 dg251″φ33.5*3.252.42φ33.5*42.29 dg3211/4″φ42.25*3.253.13φ42.25*43.78 dg4011/2″φ48*3.53.84φ48*4.254.58 dg502″φ60*3.54.88φ60*4.56.16 dg7021/

英制螺纹对应公制（mm)底孔直径公制螺纹底孔直径 1/8"3.182.70m1.00.80 5/32"3.973.30m2.01.80 3/16"4.763.80m3.02.50 1/4"6.355.10m4.03.30 5/16"7.946.60m5.04.20 3/8"9.538.00m6.05.00 7/16"11.119.40m7.06.00 1/2"12.7010.70m8.06.80 5/8"15.8813.70m9.07.80 3/4"19.0516.70m10.08.50 7/8"22.2319.50m12.010.30 1"25.4022.40m14.012.00 m16.014.00 m18.015.50 m20.017.50 m22.019.50 m24.

公称直径英寸 英制管外 径 公制管外 径 常用 壁厚 管接头平垫 密封 sae法兰螺栓 dn61/810101.5 dn81/413.5141.5 dn103/817.2162 dn151/221.32029*18*2m8*40 dn203/426.7525210*24*2m10*40 dn25133.5322.520*30*2m10*45 dn3211/442.25382.525*40*2m10*45 dn40/3811/248.345330*45*2m12*50 dn50260.357345*55*3m12*50 dn6521/276.1763.5m12*60 dn80388.9894m16*70 dn1004114.31084m16*80 d

管螺纹每寸牙数大径小径底孔基准距离 1/82710.2428.736φ8.64.102 1/41813.61611.358φ11.15.786 3/81817.05514.797φ14.56.096 1/21421.22318.321φ17.98.128 3/41426.56623.667φ23.28.611 111.533.22829.694φ29.210.160 1-1/411.541.98538.451φ37.910.668 1-1/211.548.05444.520φ43.910.668 批准：审核：

外径壁厚重量 英寸毫米.单位毫米.英寸.公斤/米.磅/英尺. 1/8”10.310s1.240.0490.280.19 1/8”10.3std-401.730.0680.370.25 1/8”10.3xs-802.410.0950.480.32 1/4”13.710s1.650.0650.500.34 1/4”13.7std-402.240.0880.640.43 1/4”13.7xs-803.020.1190.810.55 3/8”17.110s1.650.0650.640.43 3/8”17.1std-402.310.0910.850.57 3/8”17.1xs-803.200.1261.110.75 1/2”21.35s1.0

nominal pipesize inches 标称管英 寸大小 nominal pipesize mm 标称管径 毫米 odinches 外径英寸 odmm 外径毫米 schedule designations ansi/asme 附表标准 wall thickness inches 壁厚度英 寸 wall thickness mm 壁厚毫米 lbs/ft 磅/英尺 kg/m 公斤/米 1/860.40510.310/10s0.0491.240.18630.28 1/860.40510.3std/40/40s0.0681.730.24470.36 1/860.40510.3xs/80/80s0.0952.410.31450.47 1/480.5413.710/10s0.0651.650.32970.49 1/4

英制管螺纹内径外径对照表 尺寸代号每寸牙数大径中径小径建议底孔基准距离牙数 1/82710.2429.4898.736φ8.64.1024.36 1/41813.61612.48711.358φ11.15.7864.10 3/81817.05515.92614.797φ14.56.0964.32 1/21421.22319.77218.321φ17.98.1284.48 3/41426.56825.11723.666φ23.28.6114.75 111.533.22831.46129.694φ29.210.1604.60 1-1/411.541.98540.21838.451φ37.910.6684.83

pvc管径公制、英制对照表

. . 分体式空调机使用铜管对照表 1hp:1/4&3/86.35&0.769.52&0.760.0160.046 1.5hp:1/4&1/26.35&0.7612.70&0.890.0160.093 2hp:1/4&5/86.35&0.7615.88&1.020.0160.155 小3hp:3/8&1/29.52&0.7612.70&0.890.0930.046 大3hp:3/8&5/89.52&0.7615.88&1.020.0460.155 小5hp:3/8&3/49.52&0.7619.05&1.070.0460.233 大5hp:1/2&3/412.07&0.8919.05&1.070.0930.233 铜管外径与壁厚可按客户要求订

r410和r22冷量铜管对照表

基本尺寸大径螺距 每英寸牙 数中径小径牙型高度圆弧尺寸底孔尺寸 外径 英寸mmmmtpimm外螺纹h1rmmmm d=dpd2=d2d3公称内径英寸 r1/161/16＂7.7230.907287.1426.5610.5810.1256.4dn151/24分21.3 r1/81/8＂9.7280.907289.1478.5660.5810.1258.4dn203/426.9 r1/41/4＂13.1571.3371912.30111.4450.8560.18411.2dn25133.7 r3/83/8＂16.6621.3371915.80614.950.8560.18414.75dn321.2542.4 r1/21/2＂20.955

名义尺寸大径螺距 每英寸 牙数中径小径牙型高底孔直径 bammmmtpimm外螺纹h1mm d=dpd2=d2d3 no.14ba10.23110.40.860.720.140.75 no.13ba1.20.25101.61.050.90.150.95 no.12ba1.30.2890.711.130.960.171 no.11ba1.50.3181.931.3151.130.1851.2 no.10ba1.70.3572.571.491.280.211.35 no.9ba1.90.3965.121.6651.430.2351.5 no.8ba2.20.4359.071.941.680.261.8 no.7ba2.50.48

２ｂ max 3b max ２ｂ、３ｂ max no.1640.3971.5821.5821.425 no.2560.4541.8721.8721.694 no.3480.5292.1462.1461.941 no.4400.6352.3852.3852.156 no.5400.6352.6972.6972.487 no.6320.7942.8962.8962.642 no.8320.7943.5313.5283.302 no.10241.0583.9623.953.683 no.12241.0584.5974.594.343 1/4201.275.2685.254.976 5/16181.4116.7846.686.411 3/8161.5888.164

序号规格型号最大最小公差最小最大公差 17/16"-2011.07910.8740.2069.72810.0330.305 21/2"-2012.66712.4610.20611.32811.6080.279 39/16"-1814.25214.0310.22112.75113.0810.33 43/4"-1619.01218.7730.23917.32317.6780.356 57/8"-1422.18421.9230.26220.26920.6760.406 61(1/16)-1226.94426.6550.2924.68925.1460.457 71(5/16)-1233.29433.0050.2931.03931.4960.457 81(5/8)-1241.2294

规格直径 unc牙数/寸通 用命名标准 unf牙数/寸 统一标准 bsw牙数/寸bsf牙数/寸 0#1.52/80// 1#1.856472// 2#2.185664// 3#2.514856// 4#2.844048// 5#,(1/8”)3.18404440/ 6#3.513240// 8#4.173236// 10#(3/16”)4.8324322432 12#(7/32”)5.492428/28 1/4”6.3520282026 5/16”7.9418241822 3/8”9.5316201620 7/16”11.1114201418 1/2”12.7013181216 9/16”14.291218121

mmmmmmmmmm螺距mmmm螺距mmmm螺距mmmm螺距mm 30.530.35 no.540no.5441/8"40 3.1750.6353.1750.57733.1750.635 40.740.5 no.832no.836 4.16560.79384.16560.7056 3/16"243/16"32 4.76251.05834.76250.7938 no.1024no.1032 4.82601.05834.82600.7938 50.850.5 6160.5 1/4"201/4"281/4"201/4"26 6.351.276.350.90716.351.276.350.9769 5/16"185/16"245/16"18

尺寸代号 每英寸牙 数 螺距 （in)g螺纹np大径d、d小径d1、d1 1/16280.9077.7236.561 1/8280.9079.7288.566 1/4191.33713.15711.445 3/8191.33716.66214.95 1/2141.81420.95518.631 5/8141.81422.91120.587 3/4141.81426.44124.117 7/8141.81430.20127.877 1112.30933.24930.291 1-1/8112.30937.89734.939 1-1/4112.30941.9138.952 1-1/2112.30947.80344.845 1-3/4112.30953.74650.788 2

名义尺寸大径螺距 每英寸牙 数中径小径牙型高底孔直径 bammmmtpimm外螺纹h1mm d=dpd2=d2d3 no.14ba10.23110.40.860.720.140.75 no.13ba1.20.25101.61.050.90.150.95 no.12ba1.30.2890.711.130.960.171 no.11ba1.50.3181.931.3151.130.1851.2 no.10ba1.70.3572.571.491.280.211.35 no.9ba1.90.3965.121.6651.430.2351.5 no.8ba2.20.4359.071.941.680.261.8 no.7ba2.50.48

英制螺纹标准对照表

公称内径公称内径 dn151/24分dn151/24分 dn203/46分dn203/46分 dn2511寸dn2511寸 dn3211/41.2寸dn3211/41.2寸 dn4011/21.5寸dn4011/21.5寸 dn5022寸dn5022寸 dn6521/22.5寸dn6521/22.5寸 dn8033寸dn8033寸 dn10044寸dn10044寸 dn12555寸dn12555寸 dn15066寸dn15066寸 dn20088寸dn20088寸 公称内径公称内径 dn201/24分dn201/24分 dn253/46分dn253/46分 dn3211寸dn3211寸 dn4011/41.2寸dn40

水、气管道常用中英制标准尺寸对照表 把1英寸分成8等分；1/81/43/81/25/83/47/8英寸。相当于通常说的1 分管到7分管,更小的尺寸用1/16、1/32、1/64来表示，单位还是英寸。如果分 母和分子能够约分（如分子是2、4、8、16、32）就应该约分。英寸的表示是在 右上角打上两撇，如1/2"如dn25（25mm，下同）的水管就是英制1"的水管， 也是解放前的8分水管。 dn15的水管就是英制1/2"的水管，也是解放前的4分水管。如dn20的水 管就是英制3/4"的水管，也是解放前的6分水管。 一、尺寸： dn15（4分管）、dn20（6分管）、dn25（1寸管）、dn32（1寸2管）、 dn40（1寸半管）、dn50（2寸管）、dn65（2寸半管）、dn80（3寸管）、

钻井常用接头识别办法 扣型代 号 小端 直径 膛空直 径锥度 2a11 （0）60.3574.61：6 211（0）71.3287.71：6 311（0）85.06103.61：6 4a11103.73124.61：6 411114.3134.91：6 511141.32163.91：6 22169.8584.91：4 32177.62102.81：4 42196.31123.81：4 4a2189.56110.31：6 521126.791501：6 621150.37173.81：6 2a3147.6368.31：4 23153.9777.81：4 33165.0790.51：4 43190.471191：4 531110.06141.71：4 63