Company: Greenheck Fan Corp.
Product: Model HBS-430 and HBS-431
Description: Model HBS-430 and HBS-431 blast dampers are designed to protect against blasts and any instantaneous pressure changes. These heavy-duty, double-flanged, channel-frame dampers with double-thickness fabricated airfoil blades are qualified to pressures as high as 15 psi, covering many applications in Unified Facilities Criteria (UFC) and General Services Administration (GSA) codes and standards, including charge weight I at 82 feet.
Contact: 715-359-6171; www.greenheck.com