PULSE SAFETY VALVE Russian patent published in 2016 - IPC F16K17/10 

FIELD: construction.

SUBSTANCE: invention relates to valve industry, in particular to safety devices, and is intended for automatic release of high pressure system. In a pulse safety valve the body is composed of two half-cases and intermediate body arranged between in the form of a partition. Intermediate casing has a pulse valve. Valve gate is made in the form of a ball, pressed with springs to the seat by means of rod. Cavity between the seat and rod is interconnected through jet holes made in the intermediate casing with drainage cavity. Main valve gate is made in the form of a stepped plunger. At the end of smaller step of the latter there is a sealing element contacting with seat. Input cavity of the housing is interconnected with circular cavity formed by surfaces of the stepped plunger and surfaces of the housing through radial and axial holes and radial jet hole and with cavity of the spring of main gate through the above mentioned radial and axial hole and jet nozzle installed in stepped plunger.

EFFECT: invention is aimed at simplification of valve design and higher reliability due to reduction of end seals, elimination of need in sliding seal subject to pressure of gaseous medium during the whole service life.

3 cl, 1 dwg