Key Features

• Vertical Air Discharge: Efficiently directs air upwards while preventing rain entry into the building.
• Robust Construction: Cowls and steel components are made from galvanized steel with a corrosion-resistant finish for durability.
• Backdraft Prevention: Fitted with reliable gravity air-operated backdraft shutters.
• Variety of Sizes: Available in 11 sizes to accommodate different airflow requirements.
• Optimized for High Discharge Velocity: Designed to handle relatively high air discharge velocities for efficient ventilation.

Construction Details

• Backdraft Shutters:
  • Sizes 40 to 80: Made from aluminum.
  • Sizes 100 and 180: Made from galvanized sheet steel.
• Cowls: Constructed from galvanized steel for enhanced durability.
• Corrosion-Resistant Finish: All steel components are treated to withstand harsh environments.

Applications

• Ducted Systems: Ideal for installations where the fan is mounted remotely below the roof level.
• Industrial and Commercial Ventilation: Suitable for buildings requiring reliable air discharge with rain prevention.

Important Notes

• Flanged vertical discharge cowls are optimized for high air discharge velocity. For low discharge velocity applications, alternative solutions like Alpha Relief Air Vents are recommended.
• Proper installation is crucial; ensure that the hinge of the shutter points down the slope of the roof for optimal performance.

Why Choose Sigrist Design?

The VDRFE Vent Duct Round Flapped Exhaust Range combines advanced engineering, robust construction, and reliable functionality to provide a dependable solution for vertical air discharge systems. With its wide range of sizes, durable materials, and user-friendly design, the VDRFE range ensures effective and long-lasting ventilation performance. Backed by Sigrist Design’s expertise, this range is the perfect choice for commercial and industrial ventilation needs.

Compatibility Guide

If you are looking for a compatible replacement for other brand fans, please contact our customer service team on 07 3217 4415 or with the Contact form.