Ventilation and cooling
Pressurised Ventilation System
Filtered air supply that keeps the room at a higher pressure than outside, so dust cannot enter.
A pressurised ventilation system supplies filtered air to the working area so that the pressure inside is higher than the ambient pressure outside. This higher pressure stops dust and contaminants from entering, and keeps the area clean and well ventilated.
How it works
Outside air passes through inlet louvers and a double-stage filter, and a fan pushes it into the room. Because more air is supplied than leaks out, the room stays slightly above outside pressure, and air flows outwards through gaps instead of dusty air flowing in.
Where the room also needs cooling, the system can be combined with an evaporative cooling system. We supply this on request.
Typical arrangement
General layout for this type of equipment. The final arrangement depends on your plant.
- Inlet louvers
- Double-stage filter
- DIDW centrifugal fan
- Pressurised room
Types and configurations
| Standard system | DIDW centrifugal fan, inlet louvers and double-stage filter in a filter box. |
|---|---|
| With evaporative cooling | Available on customer request, for cooling the working area. |
Maintenance
- Filters are the main service item. A clogged filter lowers the airflow and the room pressure along with it.
- Doors and openings should be kept closed in normal use, or the pressure will not be held.
Often specified with
- Industrial Ventilation SystemVentilation systems that remove hot and toxic air from the working area and bring in fresh air.
- Evaporative Cooling SystemAir washer type evaporative coolers, factory assembled, for large halls where air conditioning is not economical.
- Air Handling Unit (AHU)AHUs with GI or CRC body, centrifugal fan, coil and filter section, in single or double skin construction.
Request a quote
Discuss your pressurised ventilation system requirement.
Describe your requirement or problem. Our engineers will discuss it with you on a call, visit the site where needed, and advise the right system.