CHECK VALVE Russian patent published in 2005 - IPC

FIELD: valving.

SUBSTANCE: check valve comprises housing, seat, and valving member. The housing is provided with the baffle with central opening for setting and moving the valving member along the axis of the housing from one side and with the recess from the other side. The recess receives the bearing disk with passages. The bearing disk cooperates with the face of the connection to arrest the axial movement of the valving member when the valve is open. The bearing disk has a chamber. The corresponding chamber is made in the valving member . The chambers receive movable flexible piston. The bearing disk is mounted in the recess of the housing for permitting movement.

EFFECT: enhanced reliability and prolonged service life.

4 dwg