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Home › Applications › Roof Extractor

Roof Extractor

An axial fan in a weatherproof cowl mounted on an inclined or flat roof, exhausting hot air from the ridge of a factory shed.

Roof Extractor

Selection

ProductVentilation System
Blade types selectedAxial
IndustriesAutomobile, Tyre, Shipbuilding
Impeller type usually selected
Impeller form usually selected for this duty. See Ventilation System for the full set.

In each industry

Automobile

Vehicle plants use fans on paint shop supply and exhaust, on ovens and dryers, on welding fume extraction, and for plant ventilation. Paint booth exhaust goes through wet scrubbers or adsorption towers for solvent; oven exhaust needs a hot air fan; the body shop needs fume extraction into bag filters.

Tyre

Tyre plants generate carbon black dust in mixing, rubber fume in curing, and heat everywhere. Bag filter fans on the carbon black handling system, fume exhaust on the curing presses, and heavy ventilation across the plant are the main duties.

Shipbuilding

Shipyards need portable and fixed ventilation for confined-space work inside hulls and tanks, welding fume extraction, and exhaust for blasting and painting halls with dust collection and scrubbing.

By process

The same duty, selected for the gas of each process.

See the Ventilation System page for construction, types and selection data.

Information needed to select or quote

  1. Gas volume and temperature. Actual flow at the inlet, normal and upset temperature, moisture.
  2. Dust or pollutant. Inlet loading, particle size distribution, whether it is abrasive, sticky, hygroscopic or combustible; for gases, the species and concentration.
  3. Required outlet. The emission limit or clean gas concentration the unit must meet.
  4. Site. Available space and height, material of construction preferences, and how the collected material is to be discharged.

Send us your duty point

Flow, pressure, gas condition and temperature are enough to start a selection.

Get a quote