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1、页眉内容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=D 2小径外螺纹d3牙型高度H1圆弧尺寸r底孔尺寸mmR 1/161/16"7.723 10.907 287.1426.56110.58110.12516.41R 1/81/8”9.7280.907289.1478.5660.5810.1258.4R 1/41/4"13.1571.3371912.30111.4450.8560.18411.2R 3/83/8"16.6621.3371915.80614.9500.8560.18414.75

2、R 1/21/2"20.9551.81411419.79318.631 11.162 10.249 118.25 1R 3/43/4"26.4411.814：1425.279124.11711.16210.249123.751R 11"33.2492.3091131.7730.2911.4790.31730R 1 1/41 1/4"41.9102.3091140.43138.9521.4790.31738.5R 1 1/21 1/2"47.8032.3091146.32444.8451.4790.31744.5R 22"59.614

3、：2.309 1158.13556.656 11.47910.317 156 1R 2 1/22 1/2"75.1842.3091173.70572.2261.4790.31771R 33"87.8842.3091186.40584.9261.4790.31785.5R 44"113.030 .2.30911111.551110.0721.4790.317110.5R 55"138.43012.309 111136.951135.4721.4790.317 1136 :R 66"163.8302.30911162.351160.8721.479

4、0.317161.555°圆柱管螺纹的型式和尺寸页眉内容British Pipe Thread (惠氏管螺纹)- d柱(BSPP/BSPF)螺纹代号基本尺 寸大径mm d=D螺距mmP每英寸牙 数 tpi中径mm d2=D2小径外螺纹d3牙型高 度H1底孔尺 寸mmG 1/81/8"9.7280.907289.1478.5660.5818.7G 1/41/4"13.1571.3371912.30111.4450.85611.6G 3/83/8"16.6621.3371915.80614.950.85615G 1/21/2"20.9551.814

5、1419.79318.6311.16219G 5/85/8"22.9111.8141421.74920.5871.16220.75G 3/43/4"26.4411.8141425.27924.1171.16224.5G 7/87/8"30.2011.8141429.03927.8771.16228G 11"33.2492.3091131.7730.2911.47930.5G 1 1/81 1/8"37.8972.3091136.41834.9391.47935G 1 1/41 1/4"41.912.3091140.43138.9521

6、.47939.5G 1 3/81 3/8"44.3232.3091142.84441.3651.47941.5G 1 1/21 1/2"47.8032.3091146.32444.8451.47945G 1 3/41 3/4"53.7462.3091152.26750.7881.47951G 22"59.6142.3091158.13556.6561.47957G 2 1/42 1/4"65.712.3091164.23162.7521.47963G 2 1/22 1/2"75.1842.3091173.70572.2261.4797

7、2.5G 2 3/42 3/4"81.5342.3091180.05578.5761.4797955°圆柱管螺纹的型式和尺寸G 33"87.8842.3091186.40584.9261.47985.G 3 1/43 1/4"93.982.3091192.50191.0221.47991G 3 1/23 1/2"100.332.3091198.35197.3721.47997.75G 3 3/43 3/4"106.682.30911105.201103.7221.479104G 44"113.032.30911111.551

8、10.0721.479110.5G 4 1/24 1/2"125.732.30911124.251122.7721.479123G 55"138.432.30911136.951135.4721.479136G 5 1/25 1/2"151.132.30911149.651148.1721.479148.5G 66"163.832.30911162.351160.8721.479161.555度圆锥管螺纹的实际加工尺寸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 tp

9、i中径mm d2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG 1/81/8"9.7280.907289.1478.5660.5818.7G 1/41/4"13.1571.3371912.30111.4450.85611.6G 3/83/8"16.6621.3371915.80614.950.85615G 1/21/2"20.9551.8141419.79318.6311.16219G 5/85/8"22.9111.8141421.74920.5871.16220.75G 3/43/4"26.4411.8141425.27924.11

10、71.16224.5G 7/87/8"30.2011.8141429.03927.8771.16228G 11"33.2492.3091131.7730.2911.47930.5G 1 1/81 1/8"37.8972.3091136.41834.9391.47935G 1 1/41 1/4"41.912.3091140.43138.9521.47939.5G 1 3/81 3/8"44.3232.3091142.84441.3651.47941.5G 1 1/21 1/2"47.8032.3091146.32444.8451.479

11、45G 1 3/41 3/4"53.7462.3091152.26750.7881.47951G 22"59.6142.3091158.13556.6561.47957G 2 1/42 1/4"65.712.3091164.23162.7521.47963G 2 1/22 1/2"75.1842.3091173.70572.2261.47972.5G 2 3/42 3/4"81.5342.3091180.05578.5761.47979G 33"87.8842.3091186.40584.9261.47985.G 3 1/43 1/4"93.982.3091192.50191.0221.47991G 3 1/23 1/2"100.332.3091198.35197.3721.47997.75G 3 3/43 3/4"106.682.30911105.201103.7221.479104G 44"113.032.30911111.55110.0721.479110.5G 4 1/24 1/2&quo

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