DOUBLE-SEAT VALVE (VERSIONS) Russian patent published in 2012 - IPC F16K1/44 

FIELD: machine building.

SUBSTANCE: group of inventions refers to piping valves, and namely to control devices, and intended to be used in various branches of national economy. Double-seated valve includes housing, above-seat and inter-seat chambers, inlet and outlet connection pipes, two coaxially located seats and a gate valve interacting with them. Gate valve consists of stock and two shaped plates. A rib is made in inter-seat chamber. Rib is located parallel to plane of seats and divides the inter-seat chamber into two parts. Guides of stock of gate valve are made in the rib. There are design versions of two-seat valve.

EFFECT: group of inventions is aimed at straightening of flows of effluent working medium, at reduction of static pressure and elimination of turbulence in two-seat valves during control of flows of liquid and gaseous media.

26 cl, 39 dwg