Pressure Actuated Ring Plunger is one kind of soft packed plunger which is installed with sealing ring to increase the pump efficiency and extend the service life of pump in pumping unit well.Characteristics:1.The plunger is applied in pumping unit well with high water cut, sand, fine solids and car

Spray Metal Plunger is a common type of plunger in the API 11AX standard, which is divided into several types: male threaded and female threaded, with groove and without groove.