Constant flow rate regulation module maintaining a constant air flow in a range of pressure between 50 and 250 Pa.
Flow rate is adjustable (within the working range) by loosening the front screw and manually moving the piece of regulation.
The graduated scale on the side of the opening shows the air flow range set.
Material:
PVC modul is positioned in a plastic sleeve, with air-tight gasket. The regulating components consist of a PVC blade with a balancing spring and a damper piston.