Triplex Plunger

A triplex piston pump is a reciprocating positive displacement pump that uses only three pistons. This type of pump is often used for high pressure applications e.g. hydraulic systems. Due to its robust design, it is capable of pumping high viscosity fluids and fluids which contain solids.It works by forcing drilling fluid down the hollow drill string and back up through the annulus. Triplex pumps get their name because of three horizontal plungers that supply the pressure to the drilling fluid.