valve-packing nut
... valve 阀；瓣膜；电子管；滑盖开关；装阀于 valve-packing nut 阀杆填料压紧螺母 valving 装设阀门；安装电灯；分瓣；阀门组 ...
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阀杆、塔型盖、格兰通过填料压紧密封，阀杆与执行机构通过固定于支架上的推力螺母实现上下运动。
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.
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