The RDV air volume control valve is used to control exhaust air in general room exhaust applications. The leak-resistant casing is fabricated with 22 gauge galvanized steel and is mechanically fastened. Stainless steel construction is available when corrosives and particulates are present in the airstream. For retrofit applications, the RDV can convert existing mechanical constant volume terminals to variable volume operation. 

• 22 GA galvanized steel, mechanically fastened casing
• Multipoint crossflow sensor for accurate flow measurement
• Polyethylene bearings and damper gasket for particulate resistance