High Velocity Fans

Fan selection depends on the required airflow and system resistance rather than fan type alone. IPF Colasit PVC and polypropylene blowers and CRDV in-line or roof-mounted plastic fans are listed for airflow up to 125,000 CFM. FRP axial and centrifugal fans are listed from 6,000 to 50,000 CFM. Static pressure, duct layout, gas chemistry, and mounting requirements should also be evaluated.

High velocity fans are used for industrial exhaust, corrosive gas ventilation, fume extraction, dust collection, and process-air movement. IPF Colasit products are specified for chemical plants, wastewater treatment plants, metal finishing lines, pulp and paper mills, semiconductor and PCB manufacturing, air pollution control scrubbers, and laboratory fume hoods.

Plastic fans can be suitable for corrosive chemical ventilation when the construction material is matched to the gas stream. IPF Colasit offers thermoformed PVC and polypropylene designs with no metal in the airstream, along with FRP construction for applications involving demanding chemistries and temperatures. Application review should consider chemical concentration, temperature, static pressure, and required airflow.

Available materials include PVC, polypropylene, spark-resistant PPs-EL, and fiberglass reinforced plastic. Polypropylene is described by IPF as chemically inert across most of the pH range, while FRP options include corrosion-resistant veil systems and graphite impregnation for static dissipation. The appropriate material depends on the process chemistry, temperature, spark risk, and ventilation conditions.

The product range includes axial and centrifugal FRP fans, direct-drive plastic fans, belt-drive plastic fans, and in-line or roof-mounted plastic fans. Installation options include duct mount, roof mount, vertical in-line, horizontal in-duct, and other configurations identified in the product information. Accessories include flex connectors, flanges, reducers, vibration isolators, roof covers, and sound enclosures where available.

Several IPF Colasit products offer spark-resistant PPs-EL materials, graphite impregnation for static dissipation, and explosion-proof motor options. These features are intended for spark-sensitive or explosive-atmosphere applications, but final equipment selection must follow the facility’s hazard assessment, electrical requirements, process conditions, and applicable engineering specifications.