RPM-K Round Constant Airflow Regulator
RPM-K Round Constant Airflow Regulator
The RPM-K is a mechanical constant airflow regulator (CAV) designed for round ducts. It automatically maintains a preset air volume regardless of pressure fluctuations in the ventilation system, ensuring consistent air supply or exhaust. Ideal for applications requiring precise and stable airflow.
Product Description
Key Features & Benefits
Technical Specifications
Duct Diameter Range
80 mm to 400 mm
Airflow Range
50 m³/h to 4,500 m³/h (depending on diameter)
Regulating Accuracy
±10% (for v ≥ 4 m/s) to ±20% (for v < 4 m/s) of set value
Maximum Air Velocity
10 m/s
Maximum Static Pressure
1000 Pa
Operating Temperature
0°C to +50°C
Installation & Control
Mounting Position
Horizontal, vertical, or inclined installation is possible.
Critical Axis Orientation
The damper blade axis must be installed horizontally for proper operation.
Airflow Direction
Follow the directional arrow marked on the control box.
Minimum Upstream Straight Duct
At least 2 x duct diameter (2xØD) of straight duct before the regulator.
Flow Setting Method
Manual adjustment via the external lever and integrated m³/h scale.
Actuator Power (Optional)
24V AC or 230V AC supply for motorized models, as per selected variant.
Use Cases
- Isolation & Cleanrooms
- Hotel Rooms & Restaurants
- Office Buildings
- Industry
- Classrooms & Laboratories
Product brochure
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