一种双膜泵，包括中心壳体（1），中心壳体中的两个同轴产品室（6），用于每个产品室的吸入和压力阀，两个隔膜（7），将产品室从共轴压力流体室 8），在外部密封件中引导的活塞杆（13），连接膜的活塞杆的U形外部横档（17）和用于使压力流体室与泵送介质往复地加压的控制块，并且包括滑阀（20 ）由膜的运动驱动。 泵为泵送提供了非常短的路径，只有两个方向改变，只有静态密封。 它可以完全由塑料材料制成，特别适用于半导体工业，生物技术以及制药，化妆品和食品行业的高纯度产品。

Double diaphragm pump having a center housing (1), two coaxial product chambers (6) in the center housing, suction valves and pressure valves for each product chamber, two product chambers against coaxial pressure medium chambers (8) sealing membranes (7), outwardly sealed guided piston rods (13), a bow-shaped , the piston rods of the connecting crossbeam outer membranes (17) and a control block (19) for alternately applying the pressure-medium chambers with the fluid with an actuated by the diaphragm movement control slide (20). The pump includes shortest, only two redirections having paths for the flow and only static seals. They can be manufactured entirely of plastic and is particularly suitable for high purity products in the semiconductor industry, biotechnology and in the pharmaceutical, cosmetic and food industries.