FD Series Mechanical Curtain Blade Fire DamperFD Series curtain blade fire dampers are engineered to prevent the spread of fire through ductwork that penetrates fire-rated walls, floors, ceilings, and cavity barriers.Certified to E classification under BS EN 13501-3, the range offers a wide variety of features and configurations, including:Rectangular, circular, or flat-oval duct connectionsGalvanised or stainless-steel constructionOptions for low, medium, and high velocity systemsMultiple frame variations to suit different installation requirementsThe FD Series fire dampers are tested to BS EN 1366-2 and carry an E rating for dependable fire protection. Email Us For Pricing Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend