HIGH-TEMPERATURE VALVE Russian patent published in 2013 - IPC F16K1/42 F16K11/44 

FIELD: machine building.

SUBSTANCE: control device for control of fluid medium flow rate contains a valve body that determines an inlet hole, and outlet hole and a neck located between the inlet hole and the outlet hole, a control element located in the neck of the valve body and located so that it can be moved between the first position and the second position for control of fluid medium flow rate through the valve body, a mechanical assembly containing a valve seat and a retaining ring; at that, the valve seat is attached to the valve seat inside the neck, and the retaining ring is connected through thread to the valve seat, and a seal containing graphite material clamped between the valve body and the retaining ring and interacting with the valve body so that tight sealing is provided for fluid medium between the mechanism assembly and the valve body. The valve seat includes an annular mounting part and an upper annular part located opposite the neck relative to the annular mounting part; at that, annular mounting part is connected through thread to thread to the valve body and determines the first mounting surface provided with possibility of interaction with the control element when the control element is in the first position; at that, the upper annular part is connected through thread to the retaining ring.

EFFECT: improvement of valve characteristics.

41 cl, 12 dwg