The preeflow eco-PEN Systems are the worldwide smallest dosing valves based on progressive cavity dispensing pump Technology.

www.preeflow.com - one for all fluid dispensing applications

Our dispensers consist of drive and dispenser unit and are supplied to you with the stator, which is easy to assemble. The preeflow® eco-PEN is a rotating, absolutely pressure-tight, positive displacement system with self-sealing rotor-stator arrangement. The controlled rotary motion of the rotor transfers the medium by displacement in the stator. The medium is unchanged by this process. And simply by switching to reverse-flow, preeflow® ensures a clean and controlled stop of material or medium. No drips, no mess!

The preeflow® eco-DUO is a rotating and perfectly pressure-tight displacement system. Self-sealing rotor/stator design. Conveyance action by medium displacement in the stator through controlled rotor movement. Safe conveyance without any modification of the medium. With its suck back option, preeflow® ensures clean and controlled material or medium cut-off while preventing post-dripping effects.