SELF-OPENING VALVE TYPE КС

The self-opening valve is made of galvanized steel sheet. The design of the product is a cylindrical shell, in which a flapper balanced by a counterweight is eccentrically installed, which rotates freely in conical supports.
When the fan is on, the valve flapper is opened by the air flow. After turning off the fan, the flap of the valve returns to its original position under the influence of its own weight, and closes the valve section, blocking access to the room for cold air and precipitation from the street.  The valve must be attached to the fan inlet before installing the fan on the glass. The damper can only be used when using a fan without a duct network.  The minimum dynamic pressure at which the valve operates is 3-4 kgf / m2. The self-opening valve can be operated at temperatures of the working medium from -40 ° C to + 45 ° C. The environment and air must not contain aggressive gases and vapors that destroy the materials of the product.  The self-opening valve is manufactured in climatic versions for operation in regions with moderate У(moderate) and УХЛ (boreal) climates and location categories 1, 2, 3 and 4 according to GOST 15150.