Westaflex
Westaflex W5025 Non-Insulated Flexible Duct 4 in 30 ft 500F
Non-insulated flexible aluminum duct for 4-inch HVAC runs, rated to 500 °F and 6 in wc pressure over 30 feet
- Aluminium construction withstands 500°F continuous heat
- 30 ft coil compresses to 30 in for easy handling
- 6 in wc pressure rating handles demanding airflow
- 5000 fpm velocity rating supports high-speed systems
- UL listed E60605 standard confirms safety compliance
Product identity
Westaflex W5025 is a non-insulated flexible duct built for HVAC systems that need a 4 inch diameter airway. The aluminium construction handles temperatures up to 500 degrees F and meets UL listed standard 60605.
Thermals noise power
Aluminium wall thickness of .125 in withstands continuous heat without adding insulation bulk. The duct tolerates pressure up to 6 in wc and air velocity of 5,000 fpm while vapour transmission stays at .05 percent.
What the bundle changes
Supplied as a 30 ft coil that compresses to 30 in for transport and expands on site. No extra fittings, clamps or software are included so installers must source connectors separately.
Highlights
- Aluminium construction withstands 500°F continuous heat
- 30 ft coil compresses to 30 in for easy handling
- 6 in wc pressure rating handles demanding airflow
- 5000 fpm velocity rating supports high-speed systems
- UL listed E60605 standard confirms safety compliance
Specifications
| Brand | WESTAFLEX |
|---|
Questions about this item
How do I install the 4 in non-insulated flexible duct and what step is often missed?
Slide the duct onto the 4 in fitting, secure with a clamp or approved tape, and pull it taut to avoid sagging; the step often missed is stretching the duct fully to its 30 ft length before fastening.
What maintenance or replacement will the aluminum duct need later?
Inspect the aluminum wall for tears, kinks or corrosion at each service interval; replace any section where the .125 in wall is damaged or where vapor transmission exceeds .05 percent.
What limit shows up first during sustained high-temperature airflow?
The 500 °F maximum temperature rating is reached before the 6 in wc pressure limit or the 5,000 fpm air-speed limit under sustained hot-airflow conditions.
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