CHECK VALVE RSK

Check valves type RSK are used to automatically shut down round air ducts when the fan is turned off, and are designed to prevent air flow back through the openings to the shut down fans (from the shut down fans) when the fans are connected to the collectors.

The valve structure consists of a body, inside of which spring-loaded blades are installed on the axis. When the air flow moves, a moment arises that rotates the blades and sets the valve to the open position. When the air movement stops, the blade returns to its original position with the help of a spring, thus the valve closes. Installation of the valve in the system is allowed at the speed of air flow in horizontal areas V> 6 m / s and in vertical aras V> 4 m / s. The valves in the horizontal position are installed with the axis strictly in the vertical position. Check valves can be operated at operating medium temperatures from -40 ° C to + 45 ° C. The environment and air must not contain aggressive gases and vapors that destroy the materials of the product. Check valves are manufactured in climatic versions for operation in areas with moderate and moderat-avarage climates and placement categories 1, 2, 3 and 4 according to GOST 15150.