CHECK VALVE Russian patent published in 2006 - IPC F16K15/02 F16K15/06 

FIELD: valving.

SUBSTANCE: check valve comprises housing, inlet and outlet branch pipes, and baffle with the rod for valving member. The valving member is mounted in the housing for permitting movement along the rod. The housing has a chamber provided with conical surface on its inner diameter . Between the housing and outlet branch pipe is a baffle. The baffle is connected with the rod through the adjusting ring. The end of the rod is provided with the stabilizer with bearing surface and passages for flowing fluid. The stabilizer is mounted with a spaced relation to the conical surface of the chamber. The valving member is made of a flexible material and has surfaces that correspond to the conical surface of the chamber and bearing surface of the stabilizes for closing the passages for flowing fluid and ring space between the stabilizer and chamber.

EFFECT: enhanced reliability.

4 dwg