METHOD FOR REDUCING ACOUSTIC NOISE WHEN FILLING A WASHABLE TOILET TANK WITH LOW WATER SUPPLY Russian patent published in 2019 - IPC E03D9/14 F16K47/02 

FIELD: water supply; sewerage.

SUBSTANCE: invention relates to the field of plumbing. Method consists in using a valve of associated pressure, comprising body (1), in the cavity of which a seal with a through hole and a closure member is installed, the opening in the housing is made longitudinal. Install the valve in an outer zone of a toilet tank between the end of a water supply hose to the toilet tank and a tank filling valve and perform in such a way that an inner part of valve body (1) is formed from a cylinder with constriction (9), a narrow part of which changes into tube (10), the diameter of which is less than half of an internal diameter of the cylinder. Place the freely moving closure member in the form of ball (4) of ferromagnetic metal inside the valve, which is covered with plastic and is made rough. Diameter of ball (4) is larger than a diameter of an inlet, where the constriction changes into the tube. In a zone where tube (10) is located, a ring in the form of washer (5) made of ferromagnetic metal is sealed into valve body (1), and magnetic ring (3) coated with plastic is put on top of the cylinder. Inner diameter of magnetic ring (3) is larger than the diameter of the cylinder, and so that the magnetic ring slides freely on an outer surface of the cylinder.

EFFECT: reduction of acoustic noise from filling the tank with a lower water supply, universality, as well as the ability to work in two modes: fast filling, but with noise or slow filling, but without noise.

4 cl, 4 dwg