Keramische Scheibe für Ventile und Ventile, ausgerüstet mit solchen Scheiben.

摘要

In a "half-turn" type two-disc tap, the two discs are superposed and in contact to adjust the flow rate of a liquid. Each disc has first and second openings situated on respective sides of a predetermined diameter of the disc. The first opening is situated in the central part of the disc and the second opening is situated at the periphery of the disc so that in the closed position of the tap is openings of each disc are separated from the openings of the other disc and in the maximum open position of the tap the first and second openings are respectively and conjointly superposed over an angle just less than 360 DEG .