SAFETY VALVE OF IMPROVED STABILITY Russian patent published in 2017 - IPC F16K17/06 F16K17/04 

FIELD: machine engineering.

SUBSTANCE: safety valve of improved stability comprises a housing with the angular arrangement of the inlet and outlet fittings and seat, piston, spring loaded valve, the working spring and the adjusting screw. The spring-loaded valve and the piston are interconnected via a pin and interact with the same guide formed in the valve body. Between the piston, wherein the annular groove are formed by the sealing rings, and the spring-loaded valve is mounted damping element formed as a sleeve in contact with the valve spring at the outer diameter. The piston is placed in a hollow casing mounted on a support, which supports the operating spring. Between the side walls of the hollow support and guide body, the sleeve is arranged of antifriction material. In the place of the threaded connection with the housing cup, annular ledge is clapped with the possibility of interaction with the lower part of the hollow support.

EFFECT: increase of reliability and stability of the safety valve.

2 dwg