The PS2 series piston dosing pump also offers multiple combinations of pump head and motor power that enables it to adapt to a large number of applications with its ability to alter its hydraulic characteristics thanks to a larger piston size and longer stroke length, which allows flow rate and power to change. Like PS1, PS2 pumps have a spring-loaded mechanism in an aluminium housing, and each model can be configured with 2 different stroke rates. Stroke lengths can be set automatically or manually using the AKTUA Kit which uses a 4 - 20 mA signal. PS2 pumps are supplied as standard with a 3 phase electric motor, though a single-phase is available on request, both with IP55 protection.