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1、螺纹轴线BSPT (JIS PT)55圆锥管螺纹（BSPT）螺纹代 号基本尺寸英 寸大径mmd=D螺距mrP每英寸牙1 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mmR 1/161/167.723 :0.907 :287.142 :6.561 T0.5810.1256.4R 1/81/89.7280.907289.1478.5660.5810.1258.4R 1/41/413.1571.3371912.30111.4450.8560.18411.2R 3/83/816.6621.3371915.80614.9500.8560.18414.75R 1/2r 1
2、/220.9551.814 11419.79318.631 :1.1620.24918.25R 3/43/426.4411.8141425.27924.1171.1620.24923.75R 1133.2492.309 1131.7730.29111.4790.31730R 1 1/41 1/441.9102.3091140.43138.9521.4790.31738.5R 1 1/21 1/247.8032.3091146.32444.8451.4790.31744.5R 2:259.6142.309：1158.135 :56.6561.4790.31756R 2 1/21 2 1/275.
3、184 12.309 11173.70572.226 11.4790.31771R 3387.8842.3091186.40584.9261.4790.31785.5R 44113.030 ,2.30911111.551110.0721.4790.317110.5R 5r 5138.43012.309 111136.951135.4721.4790.317136R 66163.8302.30911162.351160.8721.4790.317161.555圆柱管螺纹的型式和尺寸轆 Pf r EPBSPP/BSPF (JIS PF)British Pipe Thread (惠氏管螺纹)-圆柱(
4、BSPP/BSPF)大径螺距每英寸牙中径小径牙型高底孔尺螺纹代基本尺mmmm数mm外螺纹度寸号寸d=Dptpid2=D2d3H1mm0.90G 1/81/89.728289.1478.5660.5818.7713.151.33G 1/41/4771912.30111.4450.85611.616.661.33G 3/83/8271915.80614.950.8561520.951.81G 1/21/2541419.79318.6311.1621922.911.81G 5/85/8141421.74920.5871.16220.7526.441.81G 3/43/4141425.27924.11
5、71.16224.530.201.81G 7/87/8141429.03927.8771.1622833.242.30G 11991131.7730.2911.47930.537.892.30G 1 1/81 1/8791136.41834.9391.479352.30G 1 1/41 1/441.9191140.43138.9521.47939.544.322.30G 1 3/81 3/8391142.84441.3651.47941.5G 1 1/21 1/247.8032.3091146.32444.8451.4794553.742.30G 1 3/41 3/4691152.26750.
6、7881.4795159.612.30G 22491158.13556.6561.479572.30G 2 1/42 1/465.7191164.23162.7521.4796375.182.30G 2 1/22 1/2491173.70572.2261.47972.581.532.30G 2 3/42 3/4491180.05578.5761.4797987.882.30G 33491186.40584.9261.47985.2.30G 3 1/43 1/493.9891192.50191.0221.47991100.32.30G 3 1/23 1/2391198.35197.3721.47
7、997.75106.62.30105.20103.72G 3 3/43 3/48911121.479104113.02.30110.07G 443911111.5521.479110.5125.72.30124.25122.77G 4 1/24 1/23911121.479123138.42.30136.95135.47G 553911121.479136151.12.30149.65148.17G 5 1/25 1/23911121.479148.5163.82.30162.35160.87G 663911121.479161.5公称直径 （英寸）每英寸 牙数n爨距P有效 长度1外螺纹塔 面
8、外径d内螺纹端 面内径D单边 牙高h内螺纹 钻孔Do1/8280,90799.438.830. 581乩101/419L3371112.781L 760.85610.803/812IS. 2815. 3314.251/214L8141520.4919. 101. 16217.903/41725.8524. 5923. 2511932.5630. 7929.2512241. 1039. 5237.7512346.9345. 5143.502265& 6257. 28552 a:112.3093074_0372. 951.47933286.6185. 6543811L44110.86541136.
9、 66136.26645161.87161.7255度圆锥管螺纹的实际加工尺寸55圆柱管螺纹的型式和尺寸HIT聊f100nQIIPHPBSPP/BSPF(JISPF)British Pipe Thread (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mmG 1/81/89.7280.907289.1478.5660.5818.7G 1/41/413.1571.3371912.30111.4450.85611.6G 3/83/816.6621.3371915.80614.950.85615
10、G 1/21/220.9551.8141419.79318.6311.16219G 5/85/822.9111.8141421.74920.5871.16220.75G 3/43/426.4411.8141425.27924.1171.16224.5G 7/87/830.2011.8141429.03927.8771.16228G 1133.2492.3091131.7730.2911.47930.5G 1 1/81 1/837.8972.3091136.41834.9391.47935G 1 1/41 1/441.912.3091140.43138.9521.47939.5G 1 3/81
11、3/844.3232.3091142.84441.3651.47941.5G 1 1/21 1/247.8032.3091146.32444.8451.47945G 1 3/41 3/453.7462.3091152.26750.7881.47951G 2259.6142.3091158.13556.6561.47957G 2 1/42 1/465.712.3091164.23162.7521.47963G 2 1/22 1/275.1842.3091173.70572.2261.47972.5G 2 3/42 3/481.5342.3091180.05578.5761.47979G 3387
12、.8842.3091186.40584.9261.47985.G 3 1/43 1/493.982.3091192.50191.0221.47991G 3 1/23 1/2100.332.3091198.35197.3721.47997.75G 3 3/43 3/4106.682.30911105.201103.7221.479104G 44113.032.30911111.55110.0721.479110.5G 4 1/24 1/2125.732.30911124.251122.7721.479123G 55138.432.30911136.951135.4721.479136G 5 1/
13、25 1/2151.132.30911149.651148.1721.479148.5G 66163.832.30911162.351160.8721.479161.54分管DN15目分管DN20十DN25DNS 21. 5DN40丫DM502, 5*DN65VDN304JDN1005JDN1256DN150yDM200诃DN25O12fDN300农1螺纹的離本尺寸及其会兀123456739101112131S1617梅技高基术直径用离臧平小J25.4mmPh垄水J#jh包含的册才数atfi=Difi/2nmmmmd=D、mmmmmmmmmmmmmmmmimmmnnmmmV1628050705
14、817.7237442B56140.91493l1252 X574561B230SJ705819,72&aw&S9640i914,93J252苏L574561913170356111571230111.44561J17J4.7379711a436怕1-337035616JQ6215B0614S0O641-3t77St371D1114aa15141314116220S5&1979382131100&4501121511434141141.)622&4412S27924.11795佃111377丸2X14516312?18mm1.11.119m碍上鮒iw7j/211123091.479332493
15、1.7703029110.4231127ai&42%16819.1145291X1X1123091.47941904Q43138S621272311501Q4642%iai21.416B291%场1123091.47947B03463244434512722115010.46.42%iai21.416B291X21123091.479596145R1355666615923118213fi753%2342&721.1291X2Z1123091.479751S473705722251753521014j09242&7302232351Z31123091479&78M8&405843062Dj615%24.117.192429B333263351X4112091.47911303011155111007225435%28921S1Q4伙35B393323151X5112309147913843013&9511354722ae35场32.125111554Q14363&61561123091.479163l83016235116087228351X3212&111554Q14363G6351X