Microswitching valve used in chemical and/or biological processes, such as in screening devices, comprises a housing connected to a feed line and a removal line, and a moving part to switch the valve between a closed and open position

摘要

Microswitching valve comprises a housing (22) connected to a feed line and a removal line (32); and a moving part (24) arranged in the housing to switch the valve between a closed and open position. The moving part has a groove (34) arranged in such a way that the feed line is connected to the removal line in the open state and the connection is broken in the closed state. Preferred Features: The cross-sectional surface of the moving part is less than 100, especially less than 20 mm<2>. The valve is switched by linear movement of the moving part. The moving part is cylindrical and the groove is an annular groove surrounding the casing surface.