Rectangular VAV terminals | NS type For low noise requirements | With integral sound attenuator

Rectangular VAV terminals | NS type

Type NS rectangular pressure-independent VAV air volume control terminals are designed particularly for systems with low noise criteria and for the accurate measurement and control of air volumes courtesy of the patented airflow sensor type Flo-Cross®.


  • Pressure independent control functions.
  • For low noise requirements in high pressure or high velocity systems.
  • Low leakage damper.
  • High accurate air flow sensor (Flo-Cross type).
  • Integrated sound attenuator (very quiet).
  • Optional: reheat coil (hot water or electric).


In CAV application, the terminals maintain the required constant airflow independent to the inlet static pressure.

In VAV application, the terminals control the air volume to the room, depending on the cooling load required thus saving energy consumption in both cooling and heating applications. Alternatively VAV terminals are ideal to be used for CO2 control. Dependent of the indoor air quality, always the correct amount of fresh air will be supplied to the room. Off course the primary air handling system need to be suitable for this.

The VAV or CAV terminals can be used either for supply or return air applications in new or refurbishment projects. The terminals can optionally be supplied with a distribution plenum and a built-in hot water or electric reheat coil.

New VAV project? Use the Barcol-Air selection tool AIRSELECT for easy selection! 

Downloads & Links

Barcol-Air rectangular VAV and CAV terminals NS type for low noise requirements

Air Metering VAV | our green comfort solution

© 2020 | Barcol-Air B.V.
Contact us

Need advice?

Looking for the right solution, use our selection software!

Specific questions about our systems or products? Feel free to contact us, we are happy to help you!