The PS1 series piston dosing pump offers a flexibility of choice combining different pump head and engine power options that ensures a solution for almost any eventuality or application. Stroke lengths can be set automatically or manually using the AKTUA Kit which uses a 4 - 20 mA signal. Each model can be configured with 2 different stroke rates. Spring PS1 is supplied with a 3 phase electric motor with IP55 protection. Optionally available on request is a single-phase motor. The PS1 12 VDC range achieves flow rates between 34 and 350 l/h at up to 20 bar.