• BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair
  • BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair
  • BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair
  • BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair
  • BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair
  • BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair

BKF 315D4-6-XL/F400 Smoke Extract Centrifugal Fan – Dual-Purpose Ventilation & Smoke Extraction, 120°C Continuous, 400°C/2h Fire Rated, 2,632m³/h, Zinc-Magnesium Steel, Systemair

Regular price £1,700.96
£1,700.96
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Description
  • Dual-Purpose Functionality: Provides standard ventilation during normal operation and efficient smoke/heat extraction in fire scenarios.
  • High-Temperature Rated: Continuous operation up to 120°C; tested to withstand 400°C for 2 hours (F400), ensuring fire safety compliance.
  • Durable Construction: Zinc-magnesium coated steel casing with backward-curved pre-galvanized steel impeller for long-lasting performance.
  • Flexible Installation: Motor outside the air stream, flange connection (30 mm), can be installed in any orientation indoors or outdoors outside the fire zone.
  • Certified & Reliable: Equipped with IE2/IE3 single-speed motors with PTC thermal protection, compliant with EN 12101-3 by BSI, UK.

The BKF 315D4-6-XL/F400 smoke extract centrifugal fan is a dual-purpose solution designed for both normal ventilation and emergency smoke and heat extraction. Engineered to provide smoke-free escape routes, it ensures safe egress and assists fire department access while extracting harmful gases to reduce building damage. Tested for continuous operation up to 120°C and certified to 400°C for 2 hours, this fan features a zinc-magnesium coated steel casing, backward-curved impeller, and motor positioned outside the air stream for safety. Suitable for a wide range of applications including malls, garages, warehouses, and kitchen exhaust, it can operate in all positions with flange connections, providing reliable performance in both indoor and outdoor installations.


  • Product Code: 95689
  • Material: Zinc-Magnesium Coated Steel (Casing), Pre-Galvanized Steel (Impeller)
  • Voltage: Compatible with standard mains (motor specifics depend on regional requirements)
  • Airflow Capacity: 2,632 m³/h
  • Temperature Rating: Continuous 120°C, Fire 400°C/2h
  • Dimensions: Approx. 315 mm diameter (standard BKF 315D series)
  • Weight: 51 kg
  • Colour: Metallic Silver / Zinc-Magnesium Coated

Our team will ship your order within 5 business days. The time it takes to receive your order depends on the shipping method chosen at checkout. 

We hope you will love it, but if you need to make a return, breathe easy. Returns are always free and can be done via. our support team.


Your purchase includes a 2-year Veralis warranty, offering complete assurance in the quality and longevity of your product. From internal components to craftsmanship and performance, every part of your device is protected. Should you experience any issue during everyday use, our dedicated support team will provide quick and reliable assistance, ensuring you receive a seamless solution with minimal disruption to your comfort.


  • Whisper-Quiet Operation

    Enjoy cleaner air and consistent comfort without any distracting noise.

  • Precision Airflow Engineering

    Enjoy clean, balanced comfort throughout your space.

  • Smart Energy Optimisation

    Our systems automatically adjust their output when needed

  • Built For Modern Living

    Beautiful to look at, effortless to use, and engineered to last.

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