英制螺纹规格表

1、55。圆锥管螺纹型式和尺寸螺纹代号根本尺寸大径螺距每英寸牙数中径小径牙型髙鬪弧尺寸底孔尺寸英寸:mmmmtpimm外螺纹H1rmmd=DPd2=D2d3R1/161/16 w7.720.907287.1426.5610.5810.1256.4R1/81/8 H9.730.907289.1478.5660.5810.1258.4R1/41/4 H13.21.3371912.30111.450.8560.18411.2R3/83/8 H16.71.3371915.80614.950.8560.18414.75R1/21/2 w211.8141419.79318.631.1620.24918.25R

2、3/43/4 w26.41.8141425.27924.121.1620.24923.75R11 -33.22.3091131.7730.291.4790.31730R 1 1/41 1/4 M41.92.3091140.43138.951.4790.31738.5R 1 1/21 1/2 M47.82.3091146.32444.851.4790.31744.5R22W59.62.3091158.13556.661.4790.31756R21/22 1/2 M75.22.3091173.70572.231.4790.31771R33 -87.92.3091186.40584.931.4790

3、.31785.5R44 -1132.30911111.55110.11.4790.317110.5R55 -1382.30911136.95135.51.4790.317136R66W1642.30911162.35160.91.4790.317161.5RC2英寸锥管螺纹.每英寸11牙,螺距=25.4/11即2.309?牙高深即1.479,锥度是固定的 即1 :16- R等F1/32乘以长度.1/32M足.锥輝纹的锥度足仁16.单边就足1 : 32, K度意思足：定 位点加有效长度， 比方我定位30有效长度是12.0, RM/32X 3+12=0.46875英制普通螺纹惠氏螺纹-小螺纹系列B

4、A名义尺寸牙型代号大径螺距每英寸牙数中径小径才型高底孔直径No. 14BA10.23110.40.860.720.140.75No. 13BA1.20.25101.61.050.90.150.95No. 12BA1.302890711.130960 171No. 11BA1.50.3181.931.3151.130.1851.2No. 10BA1.70.3572.571.491.280.211.35No. 9BA1.90.3965.121.6651.430.2351.5No. 8BA2.20.4359.071.941 £80.261.8No. 7BA2.50.4852.922.211

5、.920.292No. 6BA2.80.5347.922.482.160.322.3No. 5BA3.20.5943.052.8452.490.3552.6No. 4BA3.60.6638.483.2052.810.3952.95No. 3BA4.10.7334.793.663.220.443.4No. 2BA4.70.8131.354.2153.730.4853.9No. 1BA5.30.928.224.764.220.544.4No. 0BA6125.45.44.80.65英制普通螺纹惠氏螺纹一粗牙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H?径Wwmmmmtpimm外螺纹

6、H1mmd=DP62=02d31/16 BSW1.590.423601.3151.050.271.153/32"BSW2.380.529482.0411.7030.3381.91/8 BSW3.180.635402.7682.3620.4062.55/32"BSW3.970.793323.4592.9520.5073.23/16"BSW4.761.058244.0843.4070.6773.77/32 BSW5.561.058244.8784.2010.6774.51/4 "BSW6.351.27205.5374.7240.8135.15/16"

7、;BSW7.941.411187.0346.1310.9046.53/8 BSW9.531.588168.5097.4921.0177.97/16 wBSW11.11.814149.9518.7891.1629.21/2 BSW12.72.1171211.3459.991.35510.45/8 BSW15.92.3091114.39712.921.47913.43/4 "BSW19.12.541017.42415.81.62716.257/8 BSW22.22.822920.41918.611.80719.251 BSW25.43.175823.36821.342.033221 1/

8、8"BSW28.63.629726.25323.932.32424.51 1/4BSW31.83.629729.42827.12.32427.251 3/8 -BSW34.94.233632.21529.512.71130.251 1/2 BSW38.14.233635.39132.682.71133.51 5/8“BSW41.35.08538.02434.773.25335.51 3/4 BSW44.55.08541.19937.953.25338.51 7/8“BSW47.65.6454 1/244.01240.43.61441.252皿BSW50.85.6454 1/247.1

9、8743.573.61444.52 1/4 wBSW57.26.35453.C8649.024.066502 1/2 MBSW63.56.35459.43655.374.066562 3/4“BSW69.97.2573 1/265.20560.564.64761.53BSW76.27.2573 1/271.55666.914.647683 1/4BSW82.67.8163 1/477.54872.545.00573.753 1/2 MBSW88.97.8163 1/483.89978.895.005803 3/4 HBSW95.38.467389.83284.415.42285.54BSW10

10、28.467396.18290.765.422924 1/4 HBSW1088.8352 7/8102.396.645.657984 1/2 -BSW1148.8352 7/8108.651035.657104.24 3/4 HBSW1219.2372 3/4114.74108.65.9151105mBSW1279.2372 3/4121.09115.25.915116.55 1/4 BSW1339.6772 5/8127.161216.196122.55 1/2 -BSW1409.6772 5/8133.51127.36.196128.55 3/4“BSW14610.162 1/2139.5

11、51336.506134.56WBSW15210.162 1/2145.9139.46.506141英制普通螺纹惠氏螺纹一细牙 BSF名义尺寸牙型代号大径螺距毎英寸牙数中径小径牙型高底孔直径BSFmmmmtpimm外螺纹H1mmd=DPd2=D2d33/16BSF4.760.794324.2553.7470.50847/32BSF5.560.907284.9754.3940.581461/4BSF6.350.977265.7255.10.6255.39/32BSF7.140.977266.5185.8930.6256.15/16BSF7.941.156227.1996.4590.7396.83

12、/8BSF9.531.27208.7127.8990.8138.37/16BSF11.11.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.671.01711.19/16BSF14.31.5881613.27212.261.01712.75丿8BSF15.91.8141414.71213.551.1621411/16BSF17.51.8141416.315.141.16215.53/4BSF19.12.1171217.69316.341.35516.7513/16BSF20.62.1171219.28117.921.35518.25718BS

13、F22.22.3091120.74719.271.47919.751.00BSF25.42.541023.77422.151.62722.751 1/8BSF28.62.822926.76924.961.80726.51 1/4BSF31.82.822929.94428.141.80728.751 3/8BSF34.93.175832.89330.862.03331.51 1/2BSF38.13.175836.C6834.042.03334.51 5/8BSF41.33.175839.24337.212.033381 3/4BSF44.53.629742.12639.82.32440.52BS

14、F50.83.629748.47646.152.324472 1/4BSF57.24.234654.4451.732.711532 1/2BSF63.54.2346607958.082.711592 3/4BSF69.94.234667.1464.432.7113BSF76.25.08572.S4669.693.25331/4BSF82.65.08579.29676.043.25331/2BSF88.95.6454 1/285.28581.673.6143 3/4BSF95.35.6454 1/291.63588.023.6144BSF1025.6454 1/297.98594.373.614

15、4 1/4BSF1086.354103.8999.824.066British Pipe Thread(惠氏管螺纹)一圆柱(BSPP/BSPF)螺纹代号根本尺寸大径螺距每英寸牙数中径小径ZJ宇伯J心底孔尺寸mmmmtpimm外螺纹H1mmd=DPd2=D2d3G 1/81/8"9.730.907289.1478.5660.5818.7G 1/41/4 13.21.3371912.30111.450.85611.6G 3/83/8"16.71.3371915.80614.950.85615G 1/21/2"211.8141419.79318.631.16219G 5

16、/85/8"22.91.8141421.74920.591.16220.75G 3/43/4 M26.41.8141425.27924.121.16224.5G 7/87/8"30.21.8141429.03927.881.16228G11 33.22.3091131.7730.291.47930.5G 1 1/81 1/8 M37.92.3091136.41834.941.47935G 1 1/41 1/4 M41.92.3091140.43138.951.47939.5G1 3/81 3/8 44.32.3091142.84441.371.47941.5G 1 1/21

17、 1/2 -47.82.3091146.32444.851.47945G 1 3/41 3/4 °53.72.3091152.26750.791.47951G2259.62.3091158.13556.661.47957G2 1/42 1/4 65.72.3091164.23162.751.47963G2 1/22 1/2 75.22.3091173.70572.231.47972.5G2 3/42 3/4 81.52.3091180.05578.581.47979G33"87.92.3091186.40584.931.47985.5G3 1/43 1/4 H942.309

18、1192.50191.021.47991G3 1/23 1/2"1002.3091198.35197.371.47997.75G3 3/43 3/4 -1072.30911105.2103.71.479104G44 m1132.30911111.55110.11.479110.5G4 1/24 1/2 M1262.30911124.25122.81.479123G551382.30911136.95135.51.479136G5 1/25 1/2-1512.30911149.65148.21.479148.5G66m1642.30911162.35160.91.479161.51.密

19、封管拥纹 (R)英制密封管以纹的根本尺寸及其公差配合方式英制密封管蛹纹有两种配合方式，圆柱内加纹与国催外勢纹纵成？柱/惟配合；89惟内螺纹与岡惟 外螺钱组成"锥配合.欧洲国家主要采用肆柱配合螺纹：而欧洲以外国家那么主要采用A由锥配合螺纹？两种螺纹的检验量规存在一定不同；目前的ISO英制密封管螺纹力规标准(ISO 7-2 :2000)是按a柱/赋配合体系设计英制密封管躲纹的禿英标记由崛纹转征代号纹尺寸代号和炭向代号组成英制密封IB柱内if纹的特征代号为，RP ；英制密封BS锥内IB纹的特征代号为* RC :英制密封圆锥外蛛纹的特征代号为： R1 与英制密封圆柱内螺纹配合使用；R2 与英制密封圆锥内 IB 纹配合使用； 左夷螺纹的旋向代号为 LH ；右旋 ig 纹的旋向代号省略不标 .对密封管螺纹，利用 RP/R1, RC/R2分别表示篁柱/?T和?僧便M纹亂2、非密封管螺