eFlow-Constant Airflow Regulator Dual Flow (Motorized)


Constant Airflow Regulator Dual Flow features two built in eFlow-CARs to allow for minimum and maximum flow for Standard Pressure (0.2” w.c.-1.0” w.c.) applications.

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eFlow-CAR Dual Flow self-regulating motorized dampers are designed to introduce flexibility and dynamic control to central ventilation systems. Used in both large and small systems, the eFlow-CAR Dual Flow, regulates ventilation without the need for individual fans. The module opens and closes via a blade controlled by an electric motor, eliminating the need for expensive pneumatic electronic control systems. eFlow-CAR Dual Flow is available in 5”, 6” and 8” diamater.

eFlow-CAR Dual Flow features two built in eFlow-CARs to allow for minimum and maximum flow. It combines low-flow indoor air quality ventilation and on-demand high-flow ventilation while using the same central fan system. In the “off cycle” position, the factory-calibrated eFlow-CAR allows for steady, low-flow ventilation. In the “on cycle”, the maximum flow rate is ensured.

eFlow-CARs are factory set Constant Airflow Regulators that are designed to save significant amount of energy by precisely controlling airflow into or out of a space. This is done regardless of static pressure. The use of eFlow CARs helps ensure High Indoor Air Quality (IAQ). eFlow-CARs are composed of UL94V-0 ABS plastic and are UL 2043 safety classified (labeled for flame and smoke generation). They feature a self-regulating aero-wing and spring piston design to maintain factory preset air flows.

● Diameters offered: 5”, 6”,8”
● Operating Pressure Range: 0.2” w.c. to 1.0” w.c.
● Maximum operating temperature: 140° F
● Features two built in eFlow-CARs to allow for min and max airflow
● Field adjustable CFM setpoint
● eFlow-CARs are composed of UL94v-0 ABS plastic
● eFlow-CARs are UL2043 classified
● Galvanised steel casing
● 24V power supply
● 8 second response time
● No maintenance required when used under normal conditions


Guaranteed for 6 years, from date of shipment, against all defects in material, provided material has been installed and used under normal conditions.


Additional information

Weight 8 lbs
Dimensions 12 × 12 × 12 in

5” (10-30 CFM min flow / 30-105 CFM Max Flow), 6” (10-60 CFM min flow / 60-175 CFM Max Flow), 8” (10-60 CFM min flow / 60-295 CFM Max Flow)