Device e.g. pitot tube for measuring back pressure in flowing gaseous and/or liquid media, has pipe that is connected to pressure measuring device, and cleaning device which is provided for cleaning lumen of pipe

摘要

The device (10) has a pipe (12) which is aligned parallel to flow direction (14). A pipe opening (16) provided in pipe is directed towards the flow direction. The pipe is connected to a pressure measuring device (18). A cleaning device (32) is provided for cleaning lumen of pipe. The cleaning device is provided with piston (34) which is displaced against the force of spring element (38).