CHD — Aluminum Curved-Blade, OBD damper

Extruded aluminum construction
One, two, three and four-way deflection available
Individually adjustable curved-face bars
Pivoted bars for easy positive setting
Opposed-blade damper
Bright White or Satin Anodized finish
Flat frame option standard, stocked where applicable
Damper depth is slightly greater (1/4”), where applicable
Fractional sizes NOT available
Also available in special order Z-Frame

How to Specify

Use the engineering data files to determine the proper size to use for maximum performance. Refer to the submittal drawing for key product dimensions.

How to Purchase

FAQs for GRDs

Available sizes (inches)

	Height
Width		6	8	10	12	14	16	18	20	22	24	26	28	30	32	34	36
	6	•	•	•	•	•	•	•	•	•	•	•	•	•	•	•	•
	8		•	•	•	•	•	•	•	•	•	•	•	•	•	•	•
	10			•	•	•	•	•	•	•	•	•	•	•	•	•	•
	12				•	•	•	•	•	•	•	•	•	•	•	•	•
	14					•	•	•	•	•	•	•	•	•	•	•	•
	16						•	•	•	•	•	•	•	•	•	•	•
	18							•	•	•	•	•	•	•	•	•	•
	20								•	•	•	•	•	•	•	•	•
	22									•	•	•	•	•	•	•	•
	24										•	•	•	•	•	•	•
	26											•	•	•	•	•	•
	28												•	•	•	•	•
	30													•	•	•	•
	32														•	•	•
	34															•	•
	36																•

Other sizes available upon request.

Engineering Data — C Series

Submittal Data — CD Series

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CHD — Aluminum Curved-Blade, OBD damper

Engineering Data

Submittals

Product Images