AV MINST EN OEPPNING GENOMBRUTEN SKIVA OCH VENTIL SOM BESTAOR AV EN SAODAN SKIVA

摘要

DISK PIERCED WITH AT LEAST ONE APERTURE AND VALVE COMPRISING SUCH A DISK The invention relates to disks pierced with sector-shaped apertures and valves using such disks. This type of valve comprises means for adjusting the water flow rate formed by two disks applied one against the other, one of which is fixed on a support integral with the body of the valve and the other may rotate under the action of a control rod, each disk being pierced with apertures which define the passageway depending on the mututal postion of the respective apertures of said disks. The fixed disk of the invention is provided on its input face with inclined planes in the form of dihedron so that laminar flow of the liquid is maintained, whatever the flow rate, thus ensuring a silent flow.