The circular constant flow control damper (with adjustable option) is a control component that functions independently of pressure and without an external power supply.
It can be considered “self-regulating” at pressures between 30 and 250 Pa thus maintaining the necessary air volume flow. They are regulated from a pressure loss of 30 Pa, except diametre 80 that regulates in 50 Pa.
Consequently, this air volume regulator make costly system balancing unnecessary by ensuring constant air volume.
It includes an adjustment device to manually adjust the factory-set air volume flow on site.