Designed for Venting of Inert Gas Fire Suppression

Our fire-resistant, custom pressure relief dampers are designed for inert gas and CO² fire suppression system venting* and similar low back pressure applications that require specific opening pressures.

Features & Benefits

• 2 hr fire resistance (third-party tested to UL 555)
• Standard factory configured damper opening settings eliminate on-site damper opening pressure calibration
• Adjustable opening pressures
• Maximum velocity – 4000 fpm
• Quality construction – options available

Standard Construction

• Frame: 16ga. Galvanized Steel
• Blade: 16ga. Galvanized Steel V-Blade
• Single upstream or downstream flange
• Linkage: Zinc plated concealed
• Axles: 1/2” diameter zinc plated steel
• Bearings: Bronze Oilite
• Blade Seals: PVC (180° F)
• Counterbalanced weights inside the airstream
• Seven damper sizes – ranging from 12 x 12 (304 x 304) to 36 x 36

Optional Construction

• Heavier gauge steel frame construction
• Stainless Steel construction
• Custom flange
• Epoxy coated (powder coated @ 415°F)
• 450°F silicone blade seals
• External counterbalance