Round CAV Constant volume controller double walled diameter 400 mm

Round CAV Constant Volume Controller Double-Walled Diameter 400 mm

The round CAV constant volume controller is designed to maintain a fixed airflow rate in ducted ventilation systems. This double-walled version is used in installations where a constant airflow is required, and where additional attention is needed for noise reduction and thermal insulation. The volume controller operates mechanically and automatically regulates the airflow, independent of pressure fluctuations in the duct system and without control from a building management system or external power supply.

Advantages and Features

• Constant volume control keeps the set airflow stable despite varying duct pressures within the ventilation system.
• Mechanical operation eliminates the need for external power or communication control, enhancing reliability.
• Integrated flow adjustment allows easy on-site setting of the desired air volume.
• Double-walled, insulated housing reduces noise emission and heat loss, contributing to a more comfortable indoor climate.

Performance and Use

The CAV volume controller is designed for stable operation within the preset airflow range. Once set, the airflow remains constant even under varying pressure conditions in the duct. The double-walled design contributes to quieter operation and an even, predictable air distribution in practice.

Installation, Maintenance and Applications

The controller is mounted directly into the round air duct and can be installed both horizontally and vertically. For correct operation, a straight duct section before the controller is necessary to ensure uniform airflow through the device. The housing is made of galvanized steel and equipped with seals for an airtight connection. Thanks to its simple mechanical design, the volume controller is low-maintenance and suitable for long-term use without periodic adjustment. This round CAV constant volume controller in a double-walled design provides a practical solution for ventilation systems that require a fixed and reliable airflow combined with enhanced comfort.