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Helios Fans HRFD 355/4 Ex
The Helios HRFD 355/4 Ex is a robust axial fan specifically engineered for use in potentially explosive environments, offering reliable performance and safety compliance in line with ATEX regulations. Its cylindrical casing is constructed from galvanized sheet steel and includes flanges on both ends for direct duct mounting, with dimensions and mou ...
Helios Fans HRFD 355÷4÷2
The Helios HRFD 355÷4÷2 is a high-performance axial fan designed for demanding industrial ventilation systems, offering flexibility with its dual-speed operation through Dahlander winding technology. Its cylindrical duct housing is made from durable galvanised sheet steel and features flanges at both ends for easy integration into ductwork. Flange ...
Helios Fans HRFD 355÷4÷4
The Helios HRFD 355÷4÷4 is a high-efficiency cased axial fan engineered for industrial and commercial ventilation systems requiring dual-speed operation. This model features a direct drive design with star/delta switching, allowing flexible control of airflow based on system demands. Constructed with a cylindrical duct housing made from galvanised ...
Helios Fans HRFD 355÷8÷4
The Helios HRFD 355÷8÷4 is a powerful and reliable cased axial fan designed for industrial and commercial ducted ventilation systems requiring dual-speed functionality. This model features a robust direct drive mechanism with a Dahlander wound motor for efficient 2‑speed operation. Its cylindrical housing is fabricated from galvanised sheet steel, ...
Helios Fans HRFD 400÷2÷2
The Helios HRFD 400÷2÷2 is a high-performance cased axial fan engineered for demanding ventilation systems where dual-speed operation and robust construction are essential. This fan features a direct drive configuration and a star/delta switchable 3‑phase motor for efficient two-speed control. Constructed with a cylindrical housing made from durabl ...
Helios Fans HRFD 400/4
The Helios HRFD 400/4 is a high-efficiency axial fan designed for direct installation in duct systems where reliable airflow and durable performance are required. Featuring a direct drive design and 3‑phase motor, this fan ensures optimal ventilation across various industrial and commercial environments. Its cylindrical casing is constructed from g ...
Helios Fans HRFD 400/4 Ex
The Helios HRFD 400/4 Ex is a high-performance explosion proof axial fan engineered for use in hazardous environments where ATEX compliance is essential. This duct-mounted fan is directly driven and equipped with flanges on both ends for seamless integration into industrial ventilation systems. Its cylindrical housing is made from durable galvanise ...
Helios Fans HRFD 400÷4÷2
The Helios HRFD 400÷4÷2 is a robust and efficient axial fan designed for direct drive applications with flanged cylindrical ducts on both ends. Constructed from galvanised sheet steel, the duct housing encloses a highly efficient, aerodynamically optimized impeller made from durable polymer materials. This impeller features profiled blades and is d ...
Helios Fans HRFD 400÷4÷4
The Helios HRFD 400÷4÷4 is a high-performance axial fan designed for direct-drive operation with cylindrical galvanised steel ducts and flanges on both ends. The duct housing conforms to DIN 24155 standards with flange fixing holes and an accessible terminal box mounted on the outer casing. Equipped with a highly efficient, aerodynamically optimize ...
Helios Fans HRFD 400÷8÷4
The Helios HRFD 400÷8÷4 is a high-efficiency axial fan featuring a directly driven motor housed within a galvanised cylindrical steel duct with flanges on both ends, designed in compliance with DIN 24155 standards. The duct includes flange fixing holes and a terminal box mounted on the outer casing for easy installation and maintenance. This model ...