A pre-engineered, packaged fan, the Design 5500/5800 PBC offers the performance of a special heavy-duty or custom fan without the lead time and costs of a custom fan, says the manufacturer. Features of the packaged backward-curved centrifugal fans include volumes up to 90,000 cfm and  static pressures up to 80". Arrangement 4 enables temperatures to 200°F (93°C) and arrangement 8 enables temperatures to 800°F (427°C).

Chicago Blower Corp.