NRD61V – horizontal mounted vertical flow back draft damper

NRD61-V damper is horizontal mount exhaust backdraft damper. Ideal for use in roof curbs, duct work, or wall collars when using a fan or power roof ventilator. Recommended for horizontal mount exhaust applications but it is also available for vertical mount.

Design

• Frame & blades made from galvanized steel.
• Frame and blades manufactured from mill finish aluminum. (optionally)
• Round spindles Ø 12 mm linked together by means of GI linkages.
• Gasket is provided on blade tips for low leakage. (optionally)
• Casing air leakage according to EN1752, class C
• The frame has 20-25-30-35 mm wide flanges options.