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1)  straight pipe thread
圆柱形管螺纹
2)  cylindrical thread
圆柱形螺纹
3)  cylindrical pipe thread
圆柱管螺纹
4)  Cylindrical thread chasing cutter
圆柱形螺纹梳刀
5)  Parallel screw thread
圆柱螺纹
6)  round die for straight pipe threading
圆柱管螺纹圆板牙
补充资料:55°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
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 1/8 1/8"9.7280.907289.1478.5660.5818.7
G 1/4 1/4"13.1571.3371912.30111.4450.85611.6
G 3/8 3/8"16.6621.3371915.80614.950.85615
G 1/2 1/2"20.9551.8141419.79318.6311.16219
G 5/8 5/8"22.9111.8141421.74920.5871.16220.75
G 3/4 3/4"26.4411.8141425.27924.1171.16224.5
G 7/8 7/8"30.2011.8141429.03927.8771.16228
G 1 1"33.2492.3091131.7730.2911.47930.5
G 1 1/8 1 1/8"37.8972.3091136.41834.9391.47935
G 1 1/4 1 1/4"41.912.3091140.43138.9521.47939.5
G 1 3/8 1 3/8" 44.3232.3091142.84441.3651.47941.5
G 1 1/2 1 1/2"47.8032.3091146.32444.8451.47945
G 1 3/4 1 3/4"53.7462.3091152.26750.7881.47951
G 2 2"59.6142.3091158.13556.6561.47957
G 2 1/4 2 1/4"65.712.3091164.23162.7521.47963
G 2 1/2 2 1/2"75.1842.3091173.70572.2261.47972.5
G 2 3/4 2 3/4"81.5342.3091180.05578.5761.47979
G 3 3"87.8842.3091186.40584.9261.47985.5
G 3 1/4 3 1/4"93.982.3091192.50191.0221.47991
G 3 1/2 3 1/2"100.332.3091198.35197.3721.47997.75
G 3 3/4 3 3/4"106.682.30911105.201103.7221.479104
G 4 4"113.032.30911111.55110.0721.479110.5
G 4 1/2 4 1/2"125.732.30911124.251122.7721.479123
G 55"138.432.30911136.951135.4721.479136
G 5 1/2 5 1/2"151.132.30911149.651148.1721.479148.5
G 6 6"163.832.30911162.351160.8721.479161.5
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条