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。
2
In one example, a plunger moves within the central bore in the rod between a first position where less damping is provided and a second position where increased damping is achieved.
举一个例子，在中央负有之间的第一个位置上，不阻尼杆柱塞提供移动和第二个位置上，增加了阻尼的实现。
3
JBP250-HP radical plunger pump is a high pressure as well as a large displacement plunger pump developed by our country. Connecting rod is one of the key spares.