A high efficiency piston pump which uses both the forward and backward momentum of the piston to achieve an output of 1200ml/min with a 16 watt power consumption. It is available with right angled and straight through port connections. It has a high resilience to dry running and dead head pressures without the need for temperature protection. The pump is supplied with an integrated diode converter for operation with AC voltages. By request we can supply a separate frequency converter for DC applications. Typically used in vending machines, carpet cleaners, steam generators, dosing equipment along with dental and medical equipment.