Description of Functioning: This is a Hydraulically Flexed Diaphragm Pump. The Plunger is moving in a closed sealed Hydraulic chamber. On the other side of Plunger a Diaphragm is Hermitically Sealed between two metal parts. The reciprocating movement of Plunger causes movement of Diaphragm.
Suction Stroke: When The Plunger moves backwards the Diaphragm also moves Backwards Creating Vacuum & Discharge Valve is closed & Suction Valve Opens allowing liquid to enter into the chamber.
Discharge Stroke: When the plunger moves Forwards the Diaphragm moves forward creating Pressure & suction Valve is close & Dischsrge Valve opens discharging Fluid in the outlet Pipe.
As the Diaphragm is Tightly Sealed between two Solid parts, Practically No Seals are required Making this Pump a SEAL LESS & ZERO LEAKAGE PUMP.
The Hydraulic force acts evenly upon Diaphragm these Pumps have capability of Delivering against High pressures above 200 Kg./Cm.2g.