Piston pumps are part of the group of positive displacement pumps. The most simple type of reciprocating piston pump consists of a piston that moves in a cylinder with one inlet and one outlet valve. Depending on the internal cylinder pressure, the valves open the inlet and outlet to the stroke chamber.

HM 365.17 is a reciprocating piston pump that is delivered ready for installation, mounted on a plate. The pump is installed in the HM 365.10supply unit with just a few simple steps, connected via hoses with quick-release couplings, and attached with clamping levers. The pump has an internal bypass that opens if the pressure is too high and releases pressure to the low pressure side. The pump is connected to the HM 365 Universal Drive and Brake Unit with a V-belt. The pump speed is reduced by the transmission ratio of the belt.

The pressures at the inlet and outlet of the reciprocating piston pump are recorded by sensors. The measured values are read from digital displays on the supply unit and can be transmitted simultaneously via USB directly to a PC, where they can be analysed using the included software.