DWEX Wall Mounted Exhaust Fan Explosion Proof High Airflow Industrial

The DWEX wall-mounted exhaust fan is a self-contained, ductless ventilation unit designed for direct wall embedding in industrial buildings. Unlike ducted axial fans that require extensive pipe networks, the DWEX mounts directly into a wall opening, exhausting contaminated air to the outside without any ductwork. The square housing fits standard wall openings and includes an integrated rainproof louver and stainless steel insect screen on the outdoor face, eliminating the need for separate weather hoods. The fan is certified explosion-proof to Ex d IIB T4, with a flameproof motor and non-sparking aluminum impeller that prevent ignition of flammable gases or vapors. This makes it suitable for chemical plants, paint shops, and other hazardous locations where ducted exhaust systems are impractical or cost-prohibitive. Airflow capacities range from 1,500 to 10,000 m³/h, providing the high extraction rates needed for industrial spaces. The housing is available in corrosion-resistant carbon steel or 304 stainless steel for outdoor and coastal installations. For any facility needing simple, reliable, explosion-proof exhaust without ductwork, the DWEX provides a complete, factory-assembled solution.

A ducted exhaust fan requires design, fabrication, and installation of connected ductwork, supports, and weather terminations. In existing industrial buildings with limited space, or for simple wall exhaust where the contamination source is adjacent to an exterior wall, this infrastructure adds cost and complexity without benefit. Standard wall fans lack explosion-proof certification and weather protection, making them unsafe for hazardous areas and unsuitable for outdoor exposure.

The DWEX solves both problems. The square housing embeds directly into a prepared wall opening, requiring only power connection and perimeter sealing. The integrated rain louver and insect screen provide weather and pest protection. The explosion-proof motor and non-sparking impeller meet hazardous-area requirements. The factory-assembled unit installs in a single step, reducing site labor and eliminating ductwork entirely.

• Chemical plants and paint spray booths: hazardous-area wall exhaust.
• Petroleum refineries, fuel depots, and grain mills.
• Small hazardous workshops where ductwork is impractical.
• Warehouses storing flammable materials.
• Wastewater treatment plants with biogas risk.

The fan is mounted flush within an exterior wall opening. The flameproof motor drives the aluminum impeller, pulling contaminated indoor air directly through the fan housing and exhausting it outdoors through the integrated rain louver. The insect screen prevents pest entry when the fan is idle. No ductwork, no external hoods, and no additional weather protection are required.

1. Determine the required exhaust airflow based on room volume and air change rate.
2. Select the housing material: carbon steel for standard applications, 304 stainless steel for corrosive or coastal environments.
3. Verify the wall opening dimensions and ensure the structural support is adequate for the fan weight.

Contact our engineers with your wall dimensions and application for a free selection within 24 hours.