Adjustable self-regulating constant air volume control damper in galvanised steel. To be used to regulate airstreams at pressures between 50 and 1000 Pa and temperature ranges between –30°C and 100°C. Big sizes will consist of a double valve. Possible set ranges are obtained by installed calibrated springs. Therefore the desired air volume should always be selected and mentioned when ordering, within a certain set range of the possible springs.
Explanation
VRRK = Type of constant air valve
400 = Length
200 = Height
500 m³/h = Air volume