VALVE WITH BUILT-IN BALANCING CHANNEL Russian patent published in 2022 - IPC F16K39/02 F16K1/12 F16K47/08 

FIELD: fluid valves.

SUBSTANCE: balanced valve contains a valve case forming a channel that defines a fluid flow path and passes from an inlet of the valve case to an outlet of the valve case through a chamber located between the inlet and the outlet. The valve case additionally defines a valve seat and a hole hydraulically connected to the chamber. The balanced valve contains a valve stem having the first part and the second part. The valve stem is at least partially located inside the hole and the chamber. The valve contains the first valve capacity control element coupled to the first part of the valve stem. The first valve capacity control element is located in the chamber, while the first valve capacity control element is made with the possibility of controlling the fluid flow through a flow channel of valve fluid due to the sealing interaction with the valve seat. The valve contains the second valve capacity control element coupled to the second part of the valve stem. The second valve capacity control element is located in the hole of the valve case, while part of the second valve capacity control element and the valve case form a cavity. The valve contains a built-in balancing channel formed in the valve case. The built-in balancing channel is made with the possibility of hydraulic connection of the cavity and the flow channel of fluid. The valve case contains a profile part corresponding to a shape of the chamber. The built-in balancing channel has a profile made in accordance with the shape of the profile part of the valve case.

EFFECT: implementation of the invention provides an improvement in the valve operation.

16 cl, 3 dwg