1、CB/T202-92图2表3mm结构长度L螺纹接头重量，kg公称公称舱壁压力加长加长退外开孔碳钢镍铬铁钢通径普通PN135刀径250DNDdd2124直MPa精DD加长加长加长加长普通普通615650f135250135250M181.515.8622240.150.580.860.150.610.86公670205320M221.519.8o25心0.200.591.000.200.631.0038M241.521.8121828300.220.641.130.220.641.1410.01075210325M271.524.8141930320.280.841.390.290.841.40
2、15M36X233222640420.571.612.460.581.622.479022534020M39X2362527420.611.702.560.611.712.5842595230345M48245323052541.103.003.861.113.023.8884.032100235350M56X253383260621.383.554.891.393.574.92注：加长的通舱管件一般用在绝热舱壁。3.5标记示例公称通径为32mm,普通长度160mm的碳钢螺纹接头螺纹固定通舱管件：通舱管件A32-160GCB/T202-92公称通径为20mm加长长度225mm镍铬钢的螺纹接头焊接固定通舱管件：通舱管件B20-225NCB/T202-923
