Note: This table establishment for the convention flange connection worm gear and worm drive fixed ball valve model, the major parts material and the suitable operating mode, other requests and its model please sees the ball valve model establishment meth
Note: This table establishment for the convention flange connection worm gear and worm drive fixed ball valve model, the major parts material and the suitable operating mode, other requests and its model please sees the ball valve model establishment meth
注：本表为常规法兰连接蜗轮蜗杆传动固定球阀的型号编制、主要零件材料及适用工况，其他要求及其型号编制见球阀型号编制方法。