pump plunger

基本解释

The shortcoming of top valve housing for standard type oil well pump plunger is wear and rupture of oil flow pore wall.
标准型抽油泵柱塞上阀罩的工作缺陷是出油孔壁磨损断裂。
Top quality hydraulic pump with welded construction, pistion hydraulic pump, Hard chrome plated pistion and pump plunger ensure durability and corrosion resistance.
液压缸体用优质钢焊接而成，活塞式液压泵活塞杆、泵芯镀硬铬，耐磨、耐腐蚀。
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.
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。