Dosing pump with lifting element actuated electromagnetically - has solenoid and pressure valve in ventilation channel to chamber and return

摘要

The pump head has a pumping chamber which can be linked to the suction or compression side via a pulsating lifting element. The lifting element is actuated electromagnetically and the travel is restricted. It will avoid the collection of gases in the pumping chamber. There is a solenoid valve (23) and a pressure valve (24) in the ventilating channel (20) between the upper section of the pump chamber and the link (21) for the return pipe (22) to the reservoir (3).