C-KOL 40-20 Flap check valve
Application of C - return valve for venting - KOL 40 - 20
The check valve ventilation C - KOL 40 - 20 is designed to:
- overflow preventing air and non - explosive mixtures of air from different premises one ventilation system;
- prevent ingress of outside air and precipitation in the room to be served after the fan is turned off.
The movable airbag medium should not contain substances aggressive to aluminum and aluminum alloys. It must not contain sticky substances and fibrous materials.
The design of the check valve C ventilation - KOL 40 - 20
The valve consists of a rectangular body made of an aluminum profile and the vanes mounted therein, are made of profiled aluminum.
Under the action of the air flow when the fan blades are kept in the open
After switching off the valve fan blades are returned to the original position and the valve overlap section.
Flap valve C - KOL 40 - 20 may be used to replace other network elements, such as inertial louvered gratings.