PYRO-VALVE Russian patent published in 2019 - IPC F16K17/40 

FIELD: valves.

SUBSTANCE: invention relates to normally closed pyro-valves. Novelty of the invention is that along the axis of the inlet and outlet nozzles, a sleeve with a blind bottom is mounted hermetically with the body in the center of the sleeve, passed through the hole of the piston rod. Thin-walled sealing collar is made at the piston face from the ignition cartridge.

EFFECT: technical result is to ensure complete leak-tightness with long-term exposure of the working body from the pyro-valve inlet side.

1 cl, 1 dwg