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1、5555圆锥管螺纹圆锥管螺纹(BSPT)(BSPT) 螺纹代 号 基本尺寸 英 寸 大径 mm d=D 螺距 mm p 每英寸牙 数 tpi 中径 mm d2=D 2 小径 外螺 纹 d3 牙型高 度 H1 圆弧尺 寸 r 底孔尺 寸 mm R 1/161/167.7230.907287.1426.5610.5810.1256.4 R 1/81/89.7280.907289.1478.5660.5810.1258.4 R 1/41/413.157 1.3371912.30111.4450.8560.18411.2 R 3/83/816.662 1.3371915.80614.9500.8560
2、.18414.75 R 1/21/220.955 1.8141419.79318.6311.1620.24918.25 R 3/43/426.441 1.8141425.27924.1171.1620.24923.75 R 1133.249 2.3091131.7730.2911.4790.31730 R 1 1/41 1/441.910 2.3091140.43138.9521.4790.31738.5 R 1 1/21 1/247.803 2.3091146.32444.8451.4790.31744.5 R 2259.614 2.3091158.13556.6561.4790.31756
3、 R 2 1/22 1/275.184 2.3091173.70572.2261.4790.31771 R 3387.884 2.3091186.40584.9261.4790.31785.5 R 44113.030 2.30911111.551110.0721.4790.317110.5 R 55138.430 2.30911136.951135.4721.4790.317136 R 66163.830 2.30911162.351160.8721.4790.317161.5 5555圆柱管螺纹的型式和尺寸圆柱管螺纹的型式和尺寸 British Pipe Thread (惠氏管螺纹) - 圆
4、柱 (BSPP/BSPF) 螺纹代 号 基本尺 寸 大径 mm d=D 螺距 mm p 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 mm G 1/81/89.728 0.90 7 289.1478.5660.5818.7 G 1/41/4 13.15 7 1.33 7 1912.301 11.4450.85611.6 G 3/83/8 16.66 2 1.33 7 1915.806 14.950.85615 G 1/21/2 20.95 5 1.81 4 1419.793 18.6311.16219 G 5/85/8 22.91 1 1.81
5、 4 1421.749 20.5871.16220.75 G 3/43/4 26.44 1 1.81 4 1425.279 24.1171.16224.5 G 7/87/8 30.20 1 1.81 4 1429.039 27.8771.16228 G 11 33.24 9 2.30 9 1131.77 30.2911.47930.5 G 1 1/81 1/8 37.89 7 2.30 9 1136.418 34.9391.47935 G 1 1/41 1/441.91 2.30 9 1140.431 38.9521.47939.5 G 1 3/81 3/8 44.32 3 2.30 9 11
6、42.844 41.3651.47941.5 G 1 1/21 1/2 47.80 3 2.30 9 1146.324 44.8451.47945 G 1 3/41 3/4 53.74 6 2.30 9 1152.267 50.7881.47951 G 22 59.61 4 2.30 9 1158.135 56.6561.47957 G 2 1/42 1/465.71 2.30 9 1164.231 62.7521.47963 G 2 1/22 1/2 75.18 4 2.30 9 1173.705 72.2261.47972.5 G 2 3/42 3/4 81.53 4 2.30 9 118
7、0.055 78.5761.47979 G 33 87.88 4 2.30 9 1186.405 84.9261.47985. G 3 1/43 1/493.98 2.30 9 1192.501 91.0221.47991 G 3 1/23 1/2 100.3 3 2.30 9 1198.351 97.3721.47997.75 G 3 3/43 3/4 106.6 8 2.30 9 11 105.20 1 103.72 2 1.479104 G 44 113.0 3 2.30 9 11111.55 110.07 2 1.479110.5 G 4 1/24 1/2 125.7 3 2.30 9
8、 11 124.25 1 122.77 2 1.479123 G 55 138.4 3 2.30 9 11 136.95 1 135.47 2 1.479136 G 5 1/25 1/2 151.1 3 2.30 9 11 149.65 1 148.17 2 1.479148.5 G 66 163.8 3 2.30 9 11 162.35 1 160.87 2 1.479161.5 55 度圆锥管螺纹的实际加工尺寸 5555圆柱管螺纹的型式和尺寸圆柱管螺纹的型式和尺寸 British Pipe Thread (惠氏管螺纹) - 圆柱 (BSPP/BSPF) 螺纹代号基本尺寸 大径 mm d=D
9、 螺距 mm p 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 mm G 1/81/89.728 0.907289.1478.5660.5818.7 G 1/41/413.157 1.3371912.301 11.4450.85611.6 G 3/83/816.662 1.3371915.80614.950.85615 G 1/21/220.955 1.8141419.793 18.6311.16219 G 5/85/822.911 1.8141421.749 20.5871.16220.75 G 3/43/426.441 1.8141425.279
10、 24.1171.16224.5 G 7/87/830.201 1.8141429.039 27.8771.16228 G 1133.249 2.3091131.7730.2911.47930.5 G 1 1/81 1/837.897 2.3091136.418 34.9391.47935 G 1 1/41 1/441.91 2.3091140.431 38.9521.47939.5 G 1 3/81 3/844.323 2.3091142.844 41.3651.47941.5 G 1 1/21 1/247.803 2.3091146.324 44.8451.47945 G 1 3/41 3
11、/453.746 2.3091152.267 50.7881.47951 G 2259.614 2.3091158.135 56.6561.47957 G 2 1/42 1/465.71 2.3091164.231 62.7521.47963 G 2 1/22 1/275.184 2.3091173.705 72.2261.47972.5 G 2 3/42 3/481.534 2.3091180.055 78.5761.47979 G 3387.884 2.3091186.405 84.9261.47985. G 3 1/43 1/493.98 2.3091192.501 91.0221.47
12、991 G 3 1/23 1/2100.33 2.3091198.351 97.3721.47997.75 G 3 3/43 3/4106.68 2.30911105.201 103.7221.479104 G 44113.03 2.30911111.55 110.0721.479110.5 G 4 1/24 1/2125.73 2.30911124.251 122.7721.479123 G 55138.43 2.30911136.951 135.4721.479136 G 5 1/25 1/2151.13 2.30911149.651 148.1721.479148.5 G 66163.83 2.30911162.351 160.8721.479161.5
