VALVING DEVICE Russian patent published in 2007 - IPC F16K17/04 F16K15/03 

FIELD: valving systems.

SUBSTANCE: valving device comprises housing, rotatable valving member mounted inside the housing, locking member that keeps the valving member opened, and sensitive member. The valving member is made of rotatable gate provided with sealing surface and opening. The sensitive member is made of a spring-loaded rod connected with the locking member. The opening of the rotatable gate receives the spring-loaded valving member provided with sealing surface in the open position. From the side opposite to the sealing surface, the rotatable gate is provided with the seat for permitting cooperation with the sealing surface of the valving member when it is closed.

EFFECT: simplified structure and enhanced reliability.

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