BALL VALVE AND METHOD FOR CLOSING BALL VALVE Russian patent published in 2023 - IPC E21B34/06 E21B34/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the regulation of the flow of transported media. The ball valve contains a valve body, a ball configured to rotate from an open position to a closed position, and a drive mechanism configured to rotate the ball from an open position to a closed position. The ball fluid flow path is not aligned with the valve body fluid flow path while the ball is in the closed position. Disposed within the valve body is a clutch movable from a first position to a second position to operate the actuator mechanism, the clutch remaining slidably coupled to the valve body after being displaced to the second position. The locking mechanism is initially engaged with the drive mechanism to prevent activation of the drive mechanism. The locking mechanism disengages from the drive mechanism after the clutch is moved to the second position. To implement the method of closing a ball valve, a deflecting device is placed in the body of the ball valve. The deflector is placed on the deflector seat connected to the coupling located in the valve body. The clutch is moved from the first position to the second position to disengage the ball valve latch. The clutch remains slidably connected to the valve body after it is moved to the second position. In response to release of the latch, a ball valve actuator is initiated to rotate the ball valve ball from an open position to a closed position. The ball valve is closed while the ball is in the closed position.

EFFECT: increasing the fail-safety of the ball valve.

14 cl, 5 dwg