CVP Plus: Enhanced Constant Volume Regulator

SubmittalPerformance CurvesSelection GuideCFM Adjustment Constant Volume Slide Deck


The CVP Plus is an enhanced Constant Volume Regulator. It provides a pressure-independent, maximum flow across a wide range of airflow conditions. The CVR Plus is molded from anti-microbial resins so it resists the growth of mold or bacteria. It is face adjusted and therefore easily field adjustable.

The CVR Plus has an inovative spring-loaded damper blade that reacts to the velocity of the air moving through it. As the velocity increases, the blade moves closed to block free area and deliver only the desired amount. It can be used in either exhaust of supply applications anywhere where we want to assure a maximum flow. Adjustments are made by sliding the adjustment arm across the face of the regulator.  The CVP Plus pressure range 0.2 to 2.0 InWC.


Available by themselves or factory-installed in handy ceiling and wall fittings.


Additional information


Anti-Microbial ABS

Available Sizes

4”, 5”, and 6”

Pressure Range

0.2 to 2.0 InWC

Flow Rating (4" Size)

25 to 130 CFM

Flow Rating (5" Size)

25 to 130 CFM

Flow Rating (6" Size)

50 to 275 CFM

Perimeter Gasket

T-Shaped for a snug fit

Country of Origin

100% American Made

UL 2043 Tested and Classified

Heat release rate and Smoke optical density

Lab Calibrated Adjustment Slider

ANSI/AMCA 500-D-12
Reading ± 10% of the Set-Point

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