RPM

The RPM-K mechanical self-acting constant air flow volume controllers are duct elements that maintain a constant air flow volume in proportion to the pressure drop change in HVAC systems. The RPM-K are controllers designed for installation in circular ducts. The circular controller body and control device are made of galvanized sheet metal, the damper blade is made of aluminium sheet metal, and the blade axis, housing and spring are in stainless steel.

The self-acting mechanical constant airflow volume controllers are designed for supply and exhaust air systems where it is necessary to maintain a constant airflow volume in proportion to the pressure drop change. The position of the constant airflow volume controller can be horizontal or vertical. Air flow volume from 50 to 4500 m3/h, maximum air velocity is 10 m/s and maximum duct pressure is 1000 Pa. Each VAV controller is equipped with a pressure probe in the airflow and a servo drive (Belimo NMV-D2 MP, 24 VAV, supply voltage 24 V, control voltage 0-10 V).