VALVE HEAD Russian patent published in 2000 - IPC

FIELD: mechanical engineering. SUBSTANCE: valve head may be used in household mixing cocks, as well as in industrial-purpose valves during operation in corrosive or vacuum media within wide range of low and high temperatures. Sealing assembly of drive is made as airtight rotary assembly consisting of two flat tightly adjusted discs. One of discs is stationary with hole in the middle. It is positioned on seal. Second disc is moving, with blind recesses of arbitrary from. It is coupled to moving washer of cut-off adjusting assembly by means of rod. Rod is inserted in blind recesses of moving washer and moving disc. Second disc is secured to base of valve-head seat with aid of hold-down nuts and adapters. EFFECT: extended service life. 4 cl, 4 dwg