WD-340

The WD-340 backdraft damper bolts to the flanged outlet of Greenheck model USF utility blowers. Motorpacks are optional.

Pressure: Up to 2 in. wg
Velocity: Up to 2500 fpm
Temperature: Up to 180°F

Steel Frame

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Damper Selection Guide

Which damper best fits the application? Greenheck’s damper interactive selection guide removes the guesswork. Find blade type, velocity, pressure, AMCA listings, submittals, drawings and more, all in one easy-to-use format.

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