e2Flow® | 0.2” w.c. to 1”w.c. Pressure


In stock

eFlow-CAR Dual Flow Dampers Classified UL 2043 (R38307) (e2Flow®) are self-regulating motorized dampers designed to introduce flexibility and dynamic control in central ventilation systems. The module opens and closes via a blade controlled by Belimo actuator, eliminating the need for expensive electronic control systems. e2Flow is available in 6”, 8”, 10”, 12” diameter. e2Flow features built in eFlow-CAR to allow for minimum controlled airflow. It combines low-flow 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 (min setting). In the “on cycle”, the maximum flow rate is allowed. eFlow-CARs are factory set Constant Airflow Regulators that are designed to save a 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 6 lbs
Dimensions 12 × 12 × 12 in
Pressure Range

0.2" w.c. to 1" w.c

Diameter and CFM Range

e2Flow 10" Airflow Range 10-30 CFM, e2Flow 10" Airflow Range 30-60 CFM, e2Flow 10" Airflow Range 60-105 CFM, e2Flow 12" Airflow Range 10-30 CFM, e2Flow 12" Airflow Range 105-175 CFM, e2Flow 12" Airflow Range 30-60 CFM, e2Flow 12" Airflow Range 60-105 CFM, e2Flow 6" Airflow Range 10-30 CFM, e2Flow 8" Airflow Range 10-30 CFM, e2Flow 8" Airflow Range 30-60 CFM

Control Type

120 Volts, 24 Volts

Key Features

● Diameters offered: 6”, 8”, 10”, 12”
● Operating Pressure Range: 0.2” w.c. to 1.0” w.c.
● Two position pressure-independent damper with integrated eFlow-CAR
● Minimum airflow settings:10-295 CFM
● Field adjustable CFM setpoint
● Suitable for both supply and exhaust applications
● Maximum operating temperature: 180° F
● Operated by Belimo actuator: 24V or 120V
● Galvanized steel casing
● Closed position (off cycle/default) airflow is delivered via built-in CAR (min flow)
● Open position (on cycle) the blade is fully open (max flow)
● eFlow-CARs are composed of UL94v-0 ABS plastic
● eFlow-CARs are UL2043 (R38307) classified
● Easy In-Line installation (no mounting hardware or additional support required)
● Maintenance free and corrosion-proof under normal conditions
● Patent pending
● Made in USA
● Warranty guaranteed for (5) years


● 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 Damper Submittal Sheet

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