QF In Line Back Draft Damper

Used to reduce backward air flow in the line. Designed for use in a horizontal line. Specify if vertical operation is required. Not an explosion isolation device. • Available in Galvanized and 304SS (as shown below) or optional 316SS or carbon steel • Available with flanged ends in diameters up to 34", and other various end types • Optional 16 gauge Contact Nordfab or your local Nordfab dealer for assistance with larger sizes and material / gauge options.