CHECK VALVE Russian patent published in 2007 - IPC F16K15/03 F16K47/02 

FIELD: valving systems.

SUBSTANCE: check valve comprises housing with branch pipes, seat, and double-member disk. The disk is mounted on the rotatable lever. The lever is secured inside the housing. The inner part of the disk is provided with a step. The outer part of the disk is pressed to the step by means of the flexible ring. The vertical wall of the outer part of the disk embraces the sealing inner part. The face cooperates with the bottom of the groove that is made in the seat of the housing.

EFFECT: reduced mass and weight and simplified assembling.

2 dwg