thrust nut
... thrust nozzle 推力喷管 thrust nut 推力螺母 thrust of impeller 叶轮推力 ...
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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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