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

FIELD: valving.

SUBSTANCE: check valve comprises hollow housing and bushing rigidly interconnected through the sealing ring. The ring and the housing are interconnected through the ring chamber which receive locking member which is pressed to the seat of the housing by means of a spring. The spring bears on the bushing. The sealing ring abuts against the seat of the housing and has adequate cross flow section. The stop member is made of a rod, which is cinematically connected with the coaxial race that care the distributing balls. The balls are arranged in the ring chamber and limited by dummy grooves.

EFFECT: expanded functional capability.

2 dwg