Ventilation systems

The AlphaBlower 2200 from RadonTec is a powerful, energy-efficient radon extraction fan that extracts radon from beneath the floor slab of buildings.

• Installation in a vacuum pipe system
• Maximum negative pressure: 2200 Pa
• Maximum flow rate 130 m³/h
• Manual speed control in 20 stages
• LED status indicators

The RadonTec ventilation mushroom is an accessory for the AlphaFreshbox 25 that prevents rain and dirt from entering the ventilation system.

• Suitable for 50 mm pipes
• Protects against rain and dirt
• Prevents recirculation of stale air
• Easy to install
• Suitable for ventilation systems below ground level

The AlphaEx from RadonTec is a compact roof fan that has been specially developed for the underfloor extraction of radon gas.

• Available nominal widths: 150, 200, 250 mm
• Optionally with speed controller or transformer
• Suitable for permanent outdoor use
• Easy assembly and installation
• High performance and control accuracy

The RS-1-400 speed controller from Vents is a control unit for regulating the speed of voltage-controlled single-phase motors in ventilation systems.

• Switching on/off by turning the control knob
• Equipped with HF filter
• Suitable for surface mounting indoors
• Protected against overload by fuse
• Control from minimum to maximum voltage value

The R-1/010 speed controller from Vents is a control unit for infinitely variable speed control of EC motor-driven fans in ventilation systems.

• Switching on/off by turning the control knob
• Protection class IP40
• Suitable for surface and flush mounting
• Supply voltage: 10 - 48 VDC
• Control from minimum to maximum voltage value