Apparatus for cleaning measuring lines

摘要

The invention relates to an apparatus for the pneumatic cleaning of pressure measuring lines in a device for measuring the degree of soiling of dust filters. The apparatus comprises a single valve, which is provided with connections for the pressure measuring lines and also connections which lead to a pressure sensor. The connections between the connections can be controlled by valve seats and diaphragms, the diaphragms being provided with central nozzles through which compressed air can be blasted into the measuring lines when the diaphragms are in a closed position, in order to clean the said measuring lines.