油管螺纹尺寸

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1、油管螺纹尺寸图一、油管圆螺纹牙型油管圆螺纹高度尺寸单位：mm螺纹参数10牙/25.4mmp=2.5408牙/25.4mmp=3.175H=0.866p2.2002.750hs=hn=0.626p-0.1781.4121.810Srs=Srn=0.120p+0.0510.3560.432Scs=Scn=0.120p+0.1270.4320.508注：H、hs和hn是根据对称圆柱螺纹而不是对称圆锥螺纹公式计算的，但其结果偏差对螺距为3.175mm、锥度为62.5vmm/m或更小的螺纹来说可以忽略不计。图二、油管圆螺纹上扣基本尺寸不加厚油管螺纹尺寸单位：mm（除1、4、13外）12

2、34567891011121314代号规格外径D大端直径D4每25.4mm螺纹牙数管端至手紧面长度L1有效螺纹长度L2管端至消失点总长度L4手紧面处中径E1机紧后管端至接箍中心J接箍端面至手紧面长度M接箍镗孔直径Q接箍镗孔深度q手紧紧密距牙数A从管端起完整螺纹最小长度Lc1.05026.6726.671011.3823.5027.7925.10212.711.3328.277.9427.621.31533.4033.401012.1724.2828.5831.83312.711.3335.007.9427.621.66042.1642.161015.3427.4631.754

3、0.59612.711.3343.767.9428.891.90048.2648.261018.5230.6334.9346.69212.711.3349.867.94212.0723/860.3360.331024.8736.9841.2858.75712.711.3361.937.94218.4227/873.0373.031035.9948.1152.4071.45712.711.3374.637.94229.5431/288.9088.901042.3454.4658.7587.32212.711.3390.507.94235.894101.60101.60840.4

4、154.3660.3399.41412.713.56103.209.53234.9341/2114.30114.30845.1959.1365.10112.11412.713.56115.909.53239.70所有规格的管子螺纹在直径上锥度均为62.5mm/m外加厚油管螺纹尺寸单位：mm（除1、4、13外）1234567891011121314代号规格外径D大端直径D4每25.4mm螺纹牙数管端至手紧面长度L1有效螺纹长度L2管端至消失点总长度L4手紧面处中径E1机紧后管端至接箍中心J接箍端面至手紧面长度M接箍镗孔直径Q接箍镗孔深度q手紧紧密距牙数A从管端起完整螺纹最小长度

5、Lc1.05026.6733.401012.1724.2828.5831.83312.711.3335.007.9427.621.31533.4037.311015.3427.4631.7535.73912.711.3338.897.9428.891.66042.1646.021018.5230.6334.9344.47012.711.3347.637.94212.071.90048.2653.191020.1232.2336.5351.61412.711.3354.767.94213.6723/860.3365.89829.3143.2649.2363.69712.713.

6、5667.469.53223.8327/873.0378.59834.0648.0153.9876.39712.713.5680.169.53228.5831/288.9095.25840.4154.3660.3393.06412.713.5696.859.53234.934101.60107.95843.5957.5363.50105.76412.713.56109.559.53238.1041/2114.30120.65846.7160.7166.68118.46412.713.56122.259.53241.28所有规格的管子螺纹在直径上锥度均为62.5mm/m