BREATHING VALVE Russian patent published in 2009 - IPC F16K17/19 

FIELD: machine building.

SUBSTANCE: invention is provided for pressure control in tank in specified limits and sealing of gas space of tank. Breathing valve contains a body with gates of pressure and depression. Each of these gates includes saddle and dish with spring. Saddle of each gate is implemented in the form of frame with bulge around opening of arc type. By sides of saddle there are located grooves with located in it constant magnets. Arc part of saddle is implemented with bevel inside the gate. Dish is fixed in top part of saddle and corresponds flexible plate with spring in the form of curved rod outfitted by roller.

EFFECT: simplification of breathing valve design at improving of its reliability.

4 cl, 5 dwg