Airtight vent valve

Hermetic ventilation valves with manual or electric drive are installed on air ducts of ventilation systems as shut-off devices for reliable overlap, redirection of air flow in individual circuits of the ventilation system. This is a shut-off valve, which is structurally made in the form of a valve, that is, its closing element moves parallel to the axis of the flow of the working medium. Valves are used for reliable isolation of premises from each other or from the external environment.