The process
Confined space work inside hull blocks and tanks needs forced ventilation through flexible ducting, fume extraction at the welding, and roof extractors in the fabrication sheds.
The gas
Ventilation air for tanks and compartments during fabrication, with welding fume and blasting dust. Portable and fixed axial and centrifugal fans with flexible ducting.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| Ventilation Fan | Moves air through a plant or building for fresh air supply, heat removal and fume dilution where the system is ducted. | Backward inclined and forward curved |
| Fume Exhaust System | Hoods, ducting and an exhaust fan that capture fume at source and deliver it to a scrubber, bag filter or stack. | Backward inclined and radial tipped |
| Dust Collector Fan | The fan behind a bag filter, cyclone or multiclone on a dust extraction system. | Backward inclined and radial tipped |
| 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.. | Axial |