Helios HRFW 355/4 EX

Axial high-performance fan with a cylindrical duct casing and flanges on both sides. It is directly driven and explosion-proof according to ATEX standards. The cylindrical duct is made of galvanized steel sheet and features a wheel housing as well as flanges shaped on both sides with a hole pattern according to DIN 24155, along with an external connection box. The impeller has 5 blades made of thermoplastic material, ensuring high efficiency and low operating noise levels. Vibration-free operation is achieved through dynamic balancing according to quality level G 6.3 VDI 2060 and DIN ISO 1940. The fan can be used in a temperature range of -20 °C to +40 °C, with a surface resistance of less than 1 GOhm. It is equipped with a single-phase AC capacitor motor in a closed design, which is maintenance-free and features sealed, low-noise ball bearings with long-term lubrication. The fan is available in the Ex version according to ATEX.