eFlow-Constant Airflow Regulator Dual Flow (Motorized)


In stock

eFlow-CAR Dual Flow Classified UL 2043 (R38307) 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” diameter.

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.

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)

Key Features

● 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 (R38307) classified
● Galvanised steel casing
● 24V power supply
● 8 second response time
● No maintenance required when used under normal conditions


● Energy Efficiency Programs
● Subsidized Housing Projects
● Government Facilities
● Military facilities
● Healthcare
● High Rises
● Commercial Buildings
● Residential Buildings
● Assisted Living Facilities
● Hospitality/Hotels
● Dormitories and Schools Buildings
● Office buildings


Warranty is guaranteed for five (5) years, from the date of shipment, against all defects in material, given that the material has been installed and used under normal conditions. The warranty is limited to the repair or replacement of the material upon its return freight paid to our factory. This warranty is not transferable and is limited to the original end user.

Technical Data Download

eFlow-CAR Dual Flow Motorized Submittal Data Sheet

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