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A valve body is connected with a tower cover through soft seal, and pressed by a bracket through a bolt. The valve rod, the tower cover and a gland are pressed and sealed by filler. 閥桿、塔型蓋、格蘭通過填料壓 緊密封，閥桿與執(zhí)行機(jī)構(gòu)通過固定于支架上的推力螺母實(shí)現(xiàn)上下運(yùn)動(dòng)。 ip.com