Jetvent JFR

Reversible Axial Impulse Fan

  • 3 standard sizes from 315mm to 400mm
  • Removes carpark pollutants including smoke without the use of ducting
  • Reversible
  • Suitable for operating temperatures up +300°C for 2 hours
  • EN12101 certified with BSI Kite mark
  • +400°C for 2 hours available on request
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The Jetvent Axial Impulse fan range is available with either unidirectional or truly reversible airflow. Jetvent can run in either normal extract mode or once only smoke operation at up to 300°C for 2 hours which means cost savings as a single fan provides both general and smoke extract requirements.

Features and Benefits


The elimination or reduction in ductwork means a safer, lighter environment with better security due to the increased visibility.

No Ductwork

By adding momentum to the air, Jetvent thrusts air towards the desired extract points to ensure stagnant fumes and smoke are cleared effectively and efficiently. This principal eliminates the requirement for ductwork within a car park, as the Jetvent effectively transfers the polluted air, allowing for better use of limited space in underground facilities.

Low Maintenance

With no ductwork, maintenance costs are reduced as there is no ducting to become blocked, damaged or subject to leakage.

Cost Effective

Jetvent provides the scope for reduced installation and overall construction build costs compared with traditional ducted systems. The high efficiency impellers make this a very economical method of moving high volumes of air.

Design Appeal

The integral bell mouth inlet has a streamlined appearance for improved performance and sound.

Robust Design

Jetvent axial fans are of a robust, heavy duty construction for added strength and durability. Fan casings are heavy gauge, sheet steel, roll formed and welded and hot dipped galvanised after fabrication to BS EN ISO 1461.



Fan casing parts are heavy gauge mild steel sheet, roll formed and welded, then hot dip galvanised to BS EN ISO 1461 after fabrication to provide a long lasting and robust construction. Flanges are roll formed as part of the casing. Silencer casings are rolled galvanised steel, attenuation is achieved with sound absorbing infill retained in the attenuator casing by a perforated liner.


Motors are totally enclosed metric type to IP55, with sealed for life bearings. Standard industrial paint finish and Class H insulation to EN 60034-5, suitable for use at normal continuous duty and a once only use under smoke operation at 200°C, 300°C or 400°C for 2 hours dependent on model. Flying leads are brought out via a temperature resistant conduit system, to an external Switch Disconnector for customer cabling interface.


Adjustable pitch aerofoil impellers are provided with blades made from high quality aluminium (LM6) natural finish. Impellers are factory set at an angle to exact customer requirement. The hubs are manufactured from die cast aluminium alloy (LM6 or LM24). Assembled impellers are dynamically balanced to ISO 14694.

Quality Management

Units are certified to EN12101-3 and LPCB third party certified. Units are designed and manufactured with procedures as defined in BS EN ISO 9001. Units are tested to ISO 5801:2007 (airside performance) and BS 848 Part 2:1985 (sound performance).

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