Extruded BACKDRAFT DAMPER
ADJUSTABLE COUNTERBALANCE
ES-10 SERIES
Horizontal Mount Vertical Airflow Up
Application and Design
The ES-10 series is a horizontally mounted backdraft damper
that is designed to allow vertical airflow up and prevent
reverse airflow. The damper is opened by air pressure
differential and closed by gravity. Standard models include
adjustable internal counterbalance to assist opening.
Ratings (See page 2 for specific limitations)
Pressure: 2.5 in. wg (622 Pa) - differential pressure
Velocity: 2000 fpm (10.2 m/s)
Temperature: 180°F (82ºC)
Standard Construction
H*
W*
Frame: 6063T5 extruded aluminum
(0.063 in. [1.6mm] thickness).
Blades: 6063T5 extruded aluminum
(0.050 in. [1.3mm] thickness).
Axle Bearings: Synthetic polycarbonate sleeve type.
Linkage: 1/8 in. (3mm) aluminum.
Blade Seals: Vinyl.
*W & H dimensions furnished approximately 1/4 in. (6mm) under size.
Size Limitations
Minimum Size: 6 in. W x 8 in. H
3"
(152mm x 203mm)
Maximum Size: 40 in. W x 52 in. H
2"
(1016mm x 1321mm)
2" Max.
Options and Accessories
• 11/2 in. (38mm) flange on discharge: ES-11
• 11/2 in. (38mm) flange on intake:
• Pull Chain Actuator
ES-12
ES-10
No Flange
• Wing Nut Actuator
1 1/2"
1 1/2"
ES-11
FlanEgeSO-n1I2ntake
Flange On Discharge
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