CHECK SWIVEL VALVE Russian patent published in 2004 - IPC

FIELD: manufacture of fittings; check swivel valves used in various industries.

SUBSTANCE: proposed check valve has body, movable gate mounted on articulated joint for dividing flow section into inlet and outlet cavities; first plate located on gate on side of inlet cavity at angle relative to its sealing surface and in parallel with axis is connected with gate by means of stiffeners located in parallel relative to each other and relative to axis of gate. Valve is provided with additional plates having numbers i+1 which are located in parallel relative to axis of movable articulated joint. All plates are located at clearance relative to one another and relative to sealing surface of gate at angle α₁ to sealing surface of gate. Stiffeners connecting said plates with gate are located perpendicularly relative to plates and relative to axis of movable articulated joint, where i=1,2,3 is ordinal number of plate in way from gate.

EFFECT: reduced coefficient of hydraulic resistance and minimized number of plates; enhanced stabilization of flow of working medium.

2 cl, 6 dwg