Product overview

A 230 volt 120 psi demand pump from the Aquatec DDP5800 series, most commonly fitted to the Mytee Lite portable upholstery extractor. It is a self-priming diaphragm pump with a built-in pressure switch, so it runs on demand when the trigger opens and shuts off against pressure when it closes.

Specifications

CCW code	MPC306
Series	Aquatec DDP5800
Type	Self-priming diaphragm demand pump
Pressure	120 psi
Voltage	230 V
Common application	Mytee Lite portable upholstery extractor

Important — match the pressure, not just the fitting

CCW stocks more than one Aquatec demand pump and they are not interchangeable. Fitting a higher-pressure pump to a machine built around a lower-pressure one will over-pressure the solution line, the jets and the fittings; fitting a lower-pressure pump will leave the machine underperforming and the operator wondering why the tool will not rinse.

120 psi — this pump, CCW code MPC306
220 psi — Aquatec 230 V 220 PSI Demand Pump, CCW code AQT-220

The pressure switch is a separate serviceable part and is also pressure-specific. The 220 psi pressure switch suits the 220 psi pump, not this one.

If you are replacing a failed pump and are not certain which pressure your machine was built with, send us the machine model and the part number off the old pump before ordering.

Getting the best life out of a demand pump

Never run it dry. The diaphragm and valves rely on the fluid for lubrication and cooling. A pump run dry while the operator hunts for the solution tank valve is a pump with a shortened life.

Filter the solution. Grit and undissolved powder chew out valves. An inline filter on the suction side is cheaper than a pump.

Flush after chemical use. Run clean water through at the end of the day, particularly after acidic rinses and after any powdered product. Residue crystallising in the valve seats is a common cause of a pump that will not build pressure.

Short cycling means a problem elsewhere. A demand pump that rapidly clicks on and off usually has air in the line, a partially blocked jet or a failing pressure switch — not a failing pump.

Documents

Operational and installation guidelines, Aquatec DDP series (PDF)