Heavy Duty Water Piston Pump develops main pressure in a range of up to 400 PSI at 960 RPM. The Water Piston Pump is provided with by-pass cum pressure regulating valve and pressure vessel. The Water Piston Pump is designed with different capacity ranges varying from 10 LPM to 36 LPM. Heavy Duty Water Piston Pump is available in a sturdy construction that ensures optimum performance for longer period of time.