Pump for liquid or gaseous media is provided with at least one sealing element which is longitudinally movable in the gap between the pump housing and the pumping element

摘要

The pump for liquid or gaseous media, comprising a housing periodically chargeable with a pressure medium and a pumping element (11) made of a pliable material with valves accommodated in the housing, is provided with at least one sealing element (12, 13) which is longitudinally movable in the gap between the housing and the pumping element.