2024年1月6日发(作者：)

无缝三通理论重量表kg/只33.544.555.566.5789101112表中所列重量说1、均为明：18-22250.170.20.20.210.22270.190.20.210.260.24320.30.30.350.380.40.430.44340.320.40.370.40.430.450.48380.470.50.550.590.630.670.71420.510.60.610.660.70.740.780.830.86450.670.70.80.860.920.971.031.081.14480.710.80.850.910.9811.11.161.2251等径三通重量异径三通2、按以下比例计算一级变径按0.94计算二级变径按0.91计算三级变径按0.89计算3、计算公式0.02466*（S+1.5）（D-S-1.5）（3C-D/2）/1000式中C=三通主管长度（参见有关标准）mmS=壁厚mm

576453553774.9511.461.51233.141.11.11.61.72.23.33.51.141.21.751.822.423.623.81.231.291.91.972.63.944.121.321.392.042.122.824.252.451.411.482.182.263.024.554.776.646.939.179.5915.623.532.81.51.572.322.413.224.855.17.097.49.7910.216.725.135.243.444.352.51.581.662.462.553.415.155.397.537.8610.410.917.726.737.545.147.255.91.661.752.592.693.65.445.717.978.331111.518.828.439.847.950.159.31.851.922.852.963.986.026.328.849.2312.212.820.931.64253.455.866.168.583.9871.972.13.13.224.346.596.919.6910.113.414.12334.848.858.861.572.975.592.59672.112.233.333.484.697.147.510.51114.615.325.137.953.364.267.279.782.51681723.573.725.037.688.0711.311.915.816.527.141.157.769.672.986.489.51131873.83.9585.375.6966.36.598.218.739.239.7210.210.78.639.189.7110.210.711.211.712.212.716.917.729.144.262.27578.59396.5119720112.913.618.118.931.247.366.680.384.199.7.714.419.230.133.150.370.985.489.6014.515.220.321.335.153.475.390.895.49515.315.921.322.43756.479.696.532591616.722.423.53959.483.816727416.717.523.424.640.962.488.1168175294.364.85.285.76.24.5455.516.016.465.996.67.287.918.556.96.97.68.288.9313.414.520.221.828.330.618.224.525.742.765.292.346295302

D=外径mm只

25.526.844.668.296.53630931627.428.948.374.879.6.47.23.6523944345692282842323266276343511530591