英制螺纹_规格__牙型_对照表

英制普通螺纹(惠氏螺纹)--小螺纹系列(BA)55°圆锥管螺纹型式和尺寸BSPT是英制圆锥管螺纹标准：指螺纹的牙型角为55°、螺纹具有1：16的锥度；NPT是National(American)PipeThread的缩写，属于美国标准的60度锥管螺纹螺纹代号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 规格 视频线规格配置磁共振要求常用水泵型号参数扭矩规格钢结构技术规格书 外径壁厚最小壁厚英寸mmmmtpimm外螺纹H1rmmmmmmmmd=Dpd2=D2d3公称内径英寸R1/161/16＂7.7230.907287.1426.5610.5810.1256.4DN151/24分21.32.82.45R1/81/8＂9.7280.907289.1478.5660.5810.1258.4DN203/426.92.82.45R1/41/4＂13.1571.3371912.30111.4450.8560.18411.2DN25133.73.22.8R3/83/8＂16.6621.3371915.80614.950.8560.18414.75DN321.2542.43.53.06R1/21/2＂20.9551.8141419.79318.6311.1620.24918.25DN401.548.33.53.06R3/43/4＂26.4411.8141425.27924.1171.1620.24923.75DN50260.33.83.325R11＂33.2492.3091131.7730.2911.4790.31730DN652.576.143.5R11/411/4＂41.912.3091140.43138.9521.4790.31738.5DN80388.94R11/211/2＂47.8032.3091146.32444.8451.4790.31744.5DN1004114.34R22＂59.6142.3091158.13556.6561.4790.31756DN12551404.5R21/221/2＂75.1842.3091173.70572.2261.4790.31771DN1506168.34.5R33＂87.8842.3091186.40584.9261.4790.31785.5DN2008219.16.0(焊管)R44＂113.032.30911111.551110.0721.4790.317110.5DN2008219.16.5(热镀锌)R55＂138.432.30911136.951135.4721.4790.317136R66＂163.832.30911162.351160.8721.4790.317161.5制惠氏螺纹的型式尺寸英制普通螺纹(惠氏螺纹)--粗牙(BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径Wwmmmmtpimm外螺纹H1mmd=Dpd2=D2d31/16＂BSW1.5870.423601.3151.050.271.153/32＂BSW2.3810.529482.0411.7030.3381.91/8＂BSW3.1750.635402.7682.3620.4062.55/32＂BSW3.9690.793323.4592.9520.5073.23/16＂BSW4.7621.058244.0843.4070.6773.77/32＂BSW5.5561.058244.8784.2010.6774.51/4＂BSW6.351.27205.5374.7240.8135.15/16＂BSW7.9381.411187.0346.1310.9046.53/8＂BSW9.5251.588168.5097.4921.0177.97/16＂BSW11.1131.814149.9518.7891.1629.21/2＂BSW12.72.1171211.3459.991.35510.45/8＂BSW15.8762.3091114.39712.9181.47913.43/4＂BSW19.0512.541017.42415.7981.62716.257/8＂BSW22.2262.822920.41918.6111.80719.251＂BSW25.43.175823.36821.3352.0332211/8＂BSW28.5763.629726.25323.9292.32424.511/4＂BSW31.7513.629729.42827.1042.32427.2513/8＂BSW34.9264.233632.21529.5052.71130.2511/2＂BSW38.14.233635.39132.682.71133.515/8＂BSW41.2775.08538.02434.7713.25335.513/4＂BSW44.4525.08541.19937.9463.25338.517/8＂BSW47.6275.64541/244.01240.3983.61441.252＂BSW50.8025.64541/247.18743.5733.61444.521/4＂BSW57.1526.35453.08649.024.0665021/2＂BSW63.5026.35459.43655.374.0665623/4＂BSW69.8537.25731/265.20560.5584.64761.53＂BSW76.2037.25731/271.55666.9094.6476831/4＂BSW82.5537.81631/477.54872.5445.00573.7531/2＂BSW88.9037.81631/483.89978.8945.0058033/4＂BSW95.2548.467389.83284.415.42285.54＂BSW101.6048.467396.18290.765.4229241/4＂BSW107.9548.83527/8102.29796.6395.6579841/2＂BSW114.3048.83527/8108.647102.995.657104.243/4＂BSW120.6659.23723/4114.74108.6255.9151105＂BSW127.0059.23723/4121.09115.1765.915116.551/4＂BSW133.3559.67725/8127.159120.9636.196122.551/2＂BSW139.7059.67725/8133.509127.3136.196128.553/4＂BSW146.05510.1621/2139.549133.0436.506134.56＂BSW152.40610.1621/2145.9139.3946.506141英制普通螺纹--细牙--BSF英制普通螺纹(惠氏螺纹)--细牙(BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径BSFmmmmtpimm外螺纹H1mmd=Dpd2=D2d33/16BSF4.7630.794324.2553.7470.50847/32BSF5.5560.907284.9754.3940.5814.61/4BSF6.350.977265.7255.10.6255.39/32BSF7.1420.977266.5185.8930.6256.15/16BSF7.9381.156227.1996.4590.7396.83/8BSF9.5251.27208.7127.8990.8138.37/16BSF11.1131.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.6681.01711.19/16BSF14.2881.5881613.27212.2561.01712.75/8BSF15.8751.8141414.71213.5491.1621411/16BSF17.4631.8141416.315.1371.16215.53/4BSF19.052.1171217.69316.3361.35516.7513/16BSF20.6382.1171219.28117.9241.35518.257/8BSF22.2252.3091120.74719.2691.47919.751.00BSF25.42.541023.77422.1481.62722.7511/8BSF28.5752.822926.76924.9631.80726.511/4BSF31.752.822929.94428.1381.80728.7513/8BSF34.9253.175832.89330.8612.03331.511/2BSF38.13.175836.06834.0362.03334.515/8BSF41.2753.175839.24337.2112.0333813/4BSF44.453.629742.12639.8022.32440.52BSF50.83.629748.47646.1522.3244721/4BSF57.154.234654.4451.732.7115321/2BSF63.54.234660.7958.082.7115923/4BSF69.854.234667.1464.432.711-3BSF76.25.08572.94669.6923.253-31/4BSF82.555.08579.29676.0423.253-31/2BSF88.95.64541/285.28581.673.614-33/4BSF95.255.64541/291.63588.023.614-4BSF101.65.64541/297.98594.373.614-41/4BSF107.956.354103.88699.8224.066-55°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螺距每英寸牙数中径小径牙型高度底孔尺寸mmmmtpimm外螺纹H1mmd=Dpd2=D2d3G1/81/8＂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＂163.832.30911162.351160.8721.479161.5RC2英寸锥管螺纹，每英寸11牙，螺距=25.4/11即2.309，牙高（深）=2.309×0.64即1.479，锥度是固定的即1：16R等于1/32乘以长度1/32意思是，锥螺纹的锥度是1：16，单边就是1：32长度意思是：定位点加有效长度比如我定位3.0，有效长度是12.0R=1/32X（3+12）=0.46875　1、密封管螺纹（R）　　英制密封管螺纹的基本尺寸及其公差　　配合方式　　英制密封管螺纹有两种配合方式：圆柱内螺纹与圆锥外螺纹组成“柱/锥”配合；圆锥内螺纹与圆锥外螺纹组成“锥/锥”配合.　　欧洲国家主要采用“柱/锥”配合螺纹；而欧洲以外国家则主要采用“柱/锥”配合螺纹.两种螺纹的检验量规存在一定不同；目前的ISO英制密封管螺纹量规标准（ISO7-2：2000）是按“柱/锥”配合体系设计的.编辑本段密封管螺纹的标记　　英制密封管螺纹的完整标记由螺纹特征代号、螺纹尺寸代号和旋向代号组成.　　英制密封圆柱内螺纹的特征代号为：RP；　　英制密封圆锥内螺纹的特征代号为：RC；　　英制密封圆锥外螺纹的特征代号为：R1（与英制密封圆柱内螺纹配合使用）；　　R2（与英制密封圆锥内螺纹配合使用）；　　左旋螺纹的旋向代号为LH；右旋螺纹的旋向代号省略不标.　　对密封管螺纹，利用RP/R1，RC/R2分别 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 示“柱/锥”和“锥/锥”螺纹副.　　2、非密封管螺纹　　英制非密封管的基本尺寸及其极限偏差　　标记:　　英制非密封管螺纹的完整标记由螺纹特征代号，螺纹尺寸代号，中径公差等级代号和旋向代号组成.　　英制非密封圆柱螺纹的特征代号为：G　　对英制非密封圆柱内螺纹，其中径公差等级代号省略不标；而英制非密封圆柱外螺纹的中径公尺等级代号分别为A和B.　　左旋螺纹的旋向代号为LH；右旋螺纹的旋向代号省略不标.　　当表示英制非密封管螺纹的螺纹副时，仅标注外螺纹的标记代号.　　示例：　　尺寸代号为2的右旋，非密封圆柱内螺纹：G2　　尺寸代号为3的A级，右旋，非密封圆柱外螺纹：G3A　　尺寸代号为4的B级，左旋，非密封圆柱外螺纹：G4B-LH　　尺寸代号为2的右旋，非密封圆柱内螺纹与A级圆柱外螺纹组成的螺纹副：G2A　　加工内孔螺纹的是管螺纹丝锥加工外螺纹的有板牙。　　其他：　　55°圆锥管螺纹的转化　　55°圆锥管螺纹，是指螺纹的牙型角为55°、螺纹具有1：16的锥度。该系列螺纹在世界上应用广泛，它的代号，各国规定不同。　　中国英国法国日本iso　　代号ZGR（外）GPTR　　R(外螺纹)Rc（内）RRRc　　60°圆锥管螺纹的转化　　60°圆锥管螺纹是指牙型角为60°、螺纹锥度为1：16的管螺纹，此系列螺纹在我国机床行业和美国、前苏联应用。它的代号，我国过去规定为K，后来规定为Z，现在改为NPT.