Noble FLP Plunger Pump

A plunger pump is a type of positive displacement pump where the high-pressure seal is stationary and a smooth cylindrical plunger slides through the seal. This makes them different from piston pumps and allows them to be used at higher pressures.The advantages of piston and plunger pumps are their self-priming capability (self-priming pump) and high efficiency; disadvantages include their pulsating delivery and, especially in the case of large units, their space requirements, their large mass and their high investment costs per unit of pump output.When the pump plunger is lowered by lowering the handle, the valve V₁ closes and the pressure is transmitted to the liquid in a pipe. This pushes open valve V, and the water from cylinder A enters cylinder B.