55°圆锥管螺纹型式和尺寸螺纹代号基本尺寸英寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1圆弧尺寸r底孔尺寸mmR1/161/16＂7.7230.907287.1426.5610.5810.1256.4R1/81/8＂9.7280.907289.1478.5660.5810.1258.4R1/41/4＂13.1571.3371912.30111.4450.8560.18411.2R3/83/8＂16.6621.3371915.80614.9500.8560.18414.75R1/21/2＂20.9551.8141419.79318.6311.1620.24918.25R3/43/4＂26.4411.8141425.27924.1171.1620.24923.75R11＂33.2492.3091131.7730.2911.4790.31730R11/411/4＂41.9102.3091140.43138.9521.4790.31738.5R11/211/2＂47.8032.3091146.32444.8451.4790.31744.5R22＂59.6142.3091158.13556.6561.4790.31756R21/221/2＂75.1842.3091173.70572.2261.4790.31771R33＂87.8842.3091186.40584.9261.4790.31785.5R44＂113.0302.30911111.551110.0721.4790.317110.5R55＂138.4302.30911136.951135.4721.4790.317136R66＂163.8302.30911162.351160.8721.4790.317161.555°圆柱管螺纹的型式和尺寸BritishPipeThread(惠氏管螺纹)--圆柱(BSPP/BSPF)螺纹代号基本尺寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG1/81/8＂9.7280.907289.1478.5660.5818.7G1/41/4＂13.1571.3371912.30111.4450.85611.6G3/83/8＂16.6621.3371915.80614.950.85615G1/21/2＂20.9551.8141419.79318.6311.16219G5/85/8＂22.9111.8141421.74920.5871.16220.75G3/43/4＂26.4411.8141425.27924.1171.16224.5G7/87/8＂30.2011.8141429.03927.8771.16228G11＂33.2492.3091131.7730.2911.47930.5G11/811/8＂37.8972.3091136.41834.9391.47935G11/411/4＂41.912.3091140.43138.9521.47939.5G13/813/8＂44.3232.3091142.84441.3651.47941.5G11/211/2＂47.8032.3091146.32444.8451.47945G13/413/4＂53.7462.3091152.26750.7881.47951G22＂59.6142.3091158.13556.6561.47957G21/421/4＂65.712.3091164.23162.7521.47963G21/221/2＂75.1842.3091173.70572.2261.47972.5G23/423/4＂81.5342.3091180.05578.5761.47979G33＂87.8842.3091186.40584.9261.47985.5G31/431/4＂93.982.3091192.50191.0221.47991G31/231/2＂100.332.3091198.35197.3721.47997.75G33/433/4＂106.682.30911105.201103.7221.479104G44＂113.032.30911111.55110.0721.479110.5G41/241/2＂125.732.30911124.251122.7721.479123G55＂138.432.30911136.951135.4721.479136G51/251/2＂151.132.30911149.651148.1721.479148.5G66＂163.832.30911162.351160.8721.479161.5英制普通螺纹(惠氏螺纹)--粗牙(BSW)名义尺寸Ww牙型代号大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高H1底孔直径mm1/16＂BSW1.5870.423601.3151.0500.2701.153/32＂BSW2.3810.529482.0411.7030.3381.901/8＂BSW3.1750.635402.7682.3620.4062.505/32＂BSW3.9690.793323.4592.9520.5073.203/16＂BSW4.7621.058244.0843.4070.6773.707/32＂BSW5.5561.058244.8784.2010.6774.501/4＂BSW6.3501.270205.5374.7240.8135.105/16＂BSW7.9381.411187.0346.1310.9046.503/8＂BSW9.5251.588168.5097.4921.0177.907/16＂BSW11.1131.814149.9518.7891.1629.201/2＂BSW12.7002.1171211.3459.9901.35510.405/8＂BSW15.8762.3091114.39712.9181.47913.403/4＂BSW19.0512.5401017.42415.7981.62716.257/8＂BSW22.2262.822920.41918.6111.80719.251＂BSW25.4003.175823.36821.3352.03322.0011/8＂BSW28.5763.629726.25323.9292.32424.5011/4＂BSW31.7513.629729.42827.1042.32427.2513/8＂BSW34.9264.233632.21529.5052.71130.2511/2＂BSW38.1004.233635.39132.6802.71133.5015/8＂BSW41.2775.080538.02434.7713.25335.5013/4＂BSW44.4525.080541.19937.9463.25338.5017/8＂BSW47.6275.64541/244.01240.3983.61441.252＂BSW50.8025.64541/247.18743.5733.61444.5021/4＂BSW57.1526.350453.08649.0204.06650.0021/2＂BSW63.5026.350459.43655.3704.06656.0023/4＂BSW69.8537.25731/265.20560.5584.64761.503＂BSW76.2037.25731/271.55666.9...
