偏心压把（3）通过销子（4）铆接在阀壳（5）上。
The eccentric press handle (3) is riveted and connected to the valve casing (5) through a pin (4).
本阀一种集三偏心硬密封蝶阀和常规缓闭止回阀所有优点于一身的新型高效节能止回阀。
Therefore, the valves are the new high performance energy-saving check valves with all strong points of Triple Eccentric Hard Sealing Butterfly Valves and Normal Slow Closure Type Check Valves.
该阀采用AT 89C2 0 5 1单片微机作控制器，步进电动机作电-机械转换器旋转，偏心轮机构作机械转换器。
AT89C2051 single chip microcomputer is used as its control, step motor is used as electro mechanical transformer and eccentric wheel mechanism is used as mechanical transformer in this valve.
大气量时应用偏心气锚安装气举阀与地面单流阀两步卸气，实现了下部产层和油套环空自动卸气。
Ortherwise, the eccentric gas anchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.
密封严紧，阀芯和阀座的密封是球面线接触，靠三维偏心实现零泄漏；
Second , Tight sealing , trim and sealing seat are contacting of spherical . It relies three-eccentric to achieve non-leakage;
密封严紧，阀芯和阀座的密封是球面线接触，靠三维偏心实现零泄漏；
Second , Tight sealing , trim and sealing seat are contacting of spherical . It relies three-eccentric to achieve non-leakage;
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