FIELD: process engineering.
SUBSTANCE: invention relates to sanitary appliances of refuse chutes in residential and public buildings. Proposed valve comprises seal gasket and square-shape body fitted at refuse chute shaft and aligned with its lateral through bore. Working hole is made at said body, at its centre of symmetry and closed by round cover. Seal gasket is made of resilient material, preferably, of medium-hardness rubber plate resistant to heat, frost, acids and alkali, and has eight valve blades formed in one circle by four diametral cutouts made therein and arranged in 45 degrees, their length exceeding body working hole diameter. Extra gasket made of soft medium-hardness rubber plate resistant to heat, frost, acids and alkali, glued to the cover riveted to the body, rivet being fitted in cover and body holes. Said cover can turn about said rivet to open body working hole.
EFFECT: better valve tightness.
2 cl, 5 dwg
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