VALVE FOR FILLING VESSELS WITH WATER Russian patent published in 1998 - IPC

FIELD: sanitary engineering equipment. SUBSTANCE: this relates to filling valves for washing tanks of lavatory pans. Valve has body installed on inlet pipe union, seat, membrane with central hole which is coaxial with seat, and outlet pipe union. Valve body is additionally connected with membrane chamber which is divided into two spaces by means of flexible membrane fastened to rigid disk. Membrane chamber is provided with flexible valve which is built in it. Flexible valve is installed coaxially with calibrating hole made in front wall of membrane chamber. Made in lower part of wall in front half of chamber is outlet hole, and installed in same wall is handle with spring resting on disk of membrane. Rear half of membrane chamber is provided with pipe union which is coaxial with seat and is connected with air pipe. Inlet opening of air pipe is located at level which corresponds to minimal water level in vessel. Aforesaid design of valve uses no float and this makes valve more reliable in operation and it allows for more accurate adjustment of water level in vessel. EFFECT: higher efficiency. 1 dwg