VALVE WITH LOW FRICTION FACTOR Russian patent published in 2018 - IPC F16K3/24 F16J15/56 

FIELD: valves.

SUBSTANCE: group of inventions relates to a valve that works in conjunction with an automatic pressure actuator and to a method for operating the valve. Valve includes a valve body forming a fluid flow path between the inlet and the outlet; valve seat, acting in conjunction with a locking element configured to move between multiple distances relative to the valve seat with the formation of open positions and closed position, wherein the locking element is in contact with valve seat (3) and is located within the fluid flow passage between the inlet and the outlet. Locking element is partially located inside the volume having an inner wall and an opening area, near the opening area is a contact element in contact with the outside of the locking element to ensure sealing in the closed position. In the open position, the contact element and the outer side of the locking element are in contact with a low friction coefficient so that this does not create a seal and allows the flow of fluids through this connection.

EFFECT: technical result is the creation of a valve with increased pressure control efficiency.

14 cl, 6 dwg