N 86 AN.12DC-B

KNF double diaphragm pumps offer a high level of performance and greatly enhance safety, especially when working with dangerous, rare and valuable gases. A second diaphragm is located underneath the working diaphragm. The safety diaphragm has a significantly longer service life than the working diaphragm, thus ensuring that no gas can escape into the environment even if the working diaphragm ruptures.

Concept

Double diaphragm pumps from KNF are based on a simple principle: an elastic working membrane and safety membrane are held securely at their edges and moved up and down at their center by an eccentric. As a result, the working membrane moves the medium through automatic
valves. The lower lying safety diaphragm provides the working diaphragm with additional security.

The safety membrane has a significantly longer service life than the working diaphragm. The redundant arrangement of the diaphragms ensures that no gas can escape into the environment even if the working diaphragm ruptures.

The KNF modular system permits selection of materials with various levels of gas resistance for parts in contact with gas. Several different motors are available to drive the pump. Please contact us for details.