Greenheck Fan dimensions Extruded BACKDRAFT DAMPER, Application and Design, ES-30SERIES

Extruded BACKDRAFT DAMPER

DAMPERS AND LOUVERS

ES-30 SERIES

Vertical Mount - Horizontal Airflow

Application and Design

The ES-30 series is a vertical mounted backdraft damper that is designed to allow horizontal airflow and prevent reverse airflow. The damper is opened by air pressure differential and closed by gravity.

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)	H*

Standard Construction

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.

Size Limitations

Minimum Size (without weights): 4 in.W x 4 in. H (102mm x 102mm)

Minimum Size (with weights): 6 in. W x 8 in. H (152mm x 203mm)

Maximum Size: 40 in. W x 52 in. H (1016mm x 1321mm)

W*

*W & H dimensions furnished approximately 1/4 in. (6mm) under size.

NOTE: Optional counterbalance weights shown.

3"

3" 2" Max. 3" 2" Max. 3" 2" Max.

Options and Accessories

•11/2 in. (38mm) Flange On Discharge: ES-31

• 11/2 in. (38mm) Flange On Intake:	ES-32	2"	1 1/2" 2"	2" 1 1/2"
• Counterbalance Weights
• Pull Chain Actuator		ES-30	ES-31	ES-32
• Wing Nut Actuator
		No Flange	Flange On Discharge	Flange On Intake

ES-30	ES-31	ES-32
No Flange	Flange on Discharge	Flange on Intake

Note: Counterbalance weights may require field adjustment. Instructions are available at www.greenheck.com.