The pump valve has a structure of semi-spheric plunger with guide rod, and its seat and ball are aligned by means of a spring, and it is opened and closed in time.
泵阀件采用带导向杆的半球形柱塞结构，弹簧制动，精确控制阀球与阀座对中，启闭动作及时。
The vent valve comprises an air vent screw, a spring and a valve ball which leans against the channel under the acting force of the spring.
所述排气阀包括一排气螺钉、 一弹簧、一钢球，阀球在弹簧作用力下抵靠通道上。
As the spring is arranged below the ball valve, the ball valve has self-tightness, thereby ensuring the tightness of the ball valve to be more reliable, and improving the feasibility of the operation.
由于在球阀下边设有弹簧，使球阀具有自密性，保证球阀的密封性更加可靠，提高作业的可行性。
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