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承插焊管件尺寸的极限公差(Tolerances For Socket-welding Fittings) |
公称通径Nominal Size所有管件All Fittings45o、90o弯头、三通、四通、斜三通Elbow、Tee、Cross、Lateral双承口管箍Coupling单承口管箍、异径接头Half-coupling Reducing Inserts活接头(承插与螺纹)Union (Socket and Thread)承插孔径Socket Bore流通孔径Water Way Bore中心至承插孔底Center To Bottom of Socket结构长度Laying Lengths结构长度Laying Lengths公称装配长度Length Assem NominalDNNPSd1d2A、HEFL6-81/8-1/4 ±0.8±1.5±0.8±1.510-203/8-3/4+0.30±0.4±1.5±3.0±1.5±1.525-501-2 ±2.0±4.0±2.0±1.565-1002.1/2-4+0.40±0.8±2.5±5.0±2.5±1.5 |
螺纹管件尺寸的极限公差(Tolerances For Threaded Fittings ) |
公称通径Nominal Size45o、90o弯头、三通、四通Elbow、Tee、Cross双接口管箍、管帽Coupling、Cap单接口管箍、半管接头Half Coupling、Boss中心至端面Center To End端面至端面End To End端面至端面End To EndDNNPSAE、FE/26-81/8-1/4±0.7±0.7±0.410-203/8-3/4±1.5±1.5±0.825-501-2±2.0±2.0±1.065-1002.1/2-4±2.5±2.5±1.3 |
支管台尺寸的极限公差(Tolerances For O'lets) |
支管台尺寸极限偏差 TolerancesDN≤50 (2")DN≥65 (2.1/2")外径 O.D±1.6长度 The length±1.6承口内径 I.D±0.3±0.4内径 I.D±0.4±0.8承口深度 The depth of socket end±0.5圆弧半径 Radius±0.5 |
注:极限公差在不同标准中可能会略有差异。 |