Spring-loaded plungers use a spring and a plunger (or ball tip) to exert a precise and repeatable force. They are a better option than having engineers cobble together an assembly that uses a simple, ...

Linear-motor driven plunger pumps are most efficient at transforming mechanical energy to hydraulic work in low-producing and highly deviated wells. Linear-motor driven plunger pumps (LMDPP) are most ...

A sturdy shoulder on these spring-loaded plungers provides a fixed seating position and positively resists detent force. The new plungers come in light or heavy force, six sizes each, in steel or ...