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Products
(2188)
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Helios Fans RSD 630/1200
The Helios Fans RSD 630/1200 is a premium-quality duct silencer engineered for efficient noise attenuation in ventilation systems. Constructed from durable galvanized sheet steel, it is designed to withstand harsh conditions and maintain performance over time. The interior is lined with high-grade mineral wool for optimal sound absorption, while the airfl ...
Helios Fans RSD 630/600
The Helios Fans RSD 630/600 is a robust and efficient duct silencer designed to reduce noise levels in ventilation systems without compromising airflow performance. Its housing is constructed from galvanized sheet steel for durability and corrosion resistance, making it suitable for demanding environments. Internally, the silencer is lined with hig ...
Helios Fans RSK 150
The Helios Fans RSK 150 is an automatic flap damper engineered for easy integration into ventilation pipe systems. It prevents unwanted backflow and ensures efficient airflow in both underpressure and overpressure scenarios. Its versatile design allows for installation in various orientations by simply rotating the unit to suit the airflow direction. ...
Helios Fans RSK 160
The Helios Fans RSK 160 is a high-performance automatic backdraft damper designed for installation within circular duct systems. Engineered to regulate airflow and prevent reverse ventilation, this damper operates automatically in both underpressure and overpressure modes through a reliable spring-loaded mechanism. Its rotatable installation design ...
Helios Fans RSK 180
The Helios Fans RSK 180 is an automatic backdraught shutter designed for in-line installation in ventilation ducting. Suitable for both intake and exhaust applications, it can be mounted in any orientation, offering flexible installation options for residential, commercial, or industrial ventilation systems. This shutter effectively prevents unwant ...
Helios Fans RSK 200
The Helios Fans RSK 200 is an automatic backdraught flap designed for direct insertion into circular duct systems. It ensures one-way airflow by automatically closing under reverse pressure conditions, helping to prevent backflow of air within ventilation systems. Built for reliable performance, the RSK 200 features a durable galvanized sheet steel ...
Helios Fans RSK 250
The Helios Fans RSK 250 is an automatic backdraught flap intended for insertion directly into round ductwork to prevent unwanted reverse airflow. It operates automatically under both overpressure and underpressure conditions using a reliable spring-lock mechanism. The flap is constructed from durable galvanized sheet steel, with lightweight aluminu ...
Helios Fans RSK 315
The Helios Fans RSK 315 is an automatic backdraught flap designed for direct installation in circular duct systems. It effectively prevents reverse airflow under both overpressure and underpressure conditions, using a spring-lock mechanism for automatic operation. Constructed with a galvanized steel housing, aluminum flaps, and a stainless steel re ...
Helios Fans RSK 355
The Helios Fans RSK 355 is an automatic backdraught flap designed for insertion directly into duct runs. It automatically prevents reverse airflow by operating under both underpressure and overpressure modes using a reliable spring lock. The housing is made of galvanized sheet steel, providing durability and corrosion resistance, while the flaps ar ...
Helios Fans RVS 225 / DRVS 200
Back Draught Damper, for preventing of cold air falling into a horizontal fan. Opens with help of a motor. Cylinder form sheet steel housing with flanges fitted on both sides. Can be directly screwed onto the fan base plate. Bore holes in accordance to DIN 24155, page 2. Noiseless operation through a polymer puffer connection.