所有Y型阀的装配方式都配有密封垫，特别是“浮动”密封垫利用分气箱内的空气压力固定在分气箱表面。

All the Y-type valves are provided with sealing plates, in particular, the "floating" sealing plates which are fixed to the surface of the manifold box by the air pressure in the bag.

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这种抽油泵柱塞游动阀采用机械强制开启和关闭的结构，柱塞为等径光管、浮动结构，可防止发生气锁游动阀、阀球关闭滞后、砂卡柱塞现象。

The travelling valve of the pump is designed to be closed and opened forcibly, and the pump plunger adopts equal-diameter bare pipe with a floating structure to prevent gas lock and sand sticking.

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冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。

Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.

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