Variable Air Volume (VAV) Circular Control Damper

The circular variable air volume (VAV) control damper is intended for variable air flow regulation in circular ducts.

TECHNICAL SPECIFICATIONS
For variable or constant air flow regulation in ventilation systems
Dimensions, diameter from 80 to 630 mm
Air flow volume 18 to 7,900 m³/h
For air velocities of 1 m/s
Manufactured from galvanised sheet steel

TECHNICAL DATA
Each VAV controller is fitted with a pressure sensor and an actuator
Regulation based on flow rate; duct pressure or ambient pressure
With compact VAV controller (LMV/NMV/SMV, etc.) or separate VAV controller (VRU) and motorised control
MP-BUS, wireless NFC, MODBUS RTU and BACnet MS/TP communication available
Leak-tightness acc. to EN 1751, external casing leakage class C
Leak-tightness through the blade: class 4