Sanitary fittings

Abstract

The fitting has a valve (18) for cold water and a valve for (sic) (20) for hot water. Arranged fixedly on the closure part (38) interacting with the valve seat (42) is the auxiliary valve seat (56) of the relevant auxiliary valve (52, 54). The closure element (58) can be displaced in the direction of the axis (30) from the idle position shown into the desired limiting position by displacement of the control pin (82) in the direction of the axis (78') and by rotation of the same about the axis (78'). The auxiliary valves (52, 54) are thereby opened which leads to a pressure drop in the pilot control space (40). The closure parts (38) are lifted from the valve seats (42), by which means the water can flow from the inlet (22, 22') into the outlet (48, 48'). When the valve (18, 29) is opened, the gap between the O-ring (66) and the auxiliary valve seat (56) thus becomes smaller. This results in a pressure balancing occurring between the pilot control space (40) and the other side of the closure part (38). The quantity of water flowing through a valve (18, 20) is thus determined by the limiting position of the closure element (58). The fitting thus no longer requires a mixing valve, the temperature of the mixed water flowing out through the water outlet head (28) is determined by the quantity of cold and hot water released by the valves (18, 20).