• Fans in non sparking versions suitable for operating in zones classified 1/21 (2GD) and 2/22 (3GD) when a potentially explosive atmosphereis present, suitable for conveying flammable and combustible substances in compliance with the ATEX 94/9/CE Directive(certificationissuedbyTuvNordCert).
• Fans with rotors specially scaled for operate at 60 Hz.
• Fans with volutes realized in two or three parts. in order to simplify the transport or maintenance operations of large scale fans it can be convenient, and possibly even assential, to realize the volutes in multiple parts.
• Construction in stainless steel AISI 304, AISI 316, AISI 310 and other special varieties of steel appropriate when there is the regular presence of corrosive agents or for alimentary uses or high temperatures, typically above 300 °C.
• Construction in wear resistent material HARDOX, CREUSABRO for the transport of very hard material particles and abrasives.
• Construction in plastic material : PP (polypropylene), PVC, PE, PVDF and PRFV.
• Rock wool thermal insulation of all parts in contact with the transported fluids to reduce the surface temperature of the fan in cases of very high operating temperatures.
• Thermal insulation only of the section dividing the motor from hot surfaces, to protect the transmission or motor from the heat inside the volute.
• Construction with special seals (packing seals for high temperatures, multiple ring seals designed for suction intake greased multiple rings and flushed with nitrogen).
• Hot-galvanized fan

Special paint finishes also available:

• Coal black, recommended for high temperatures up to 500 °C.
• Double layer of powder consisting of a first layer of organic zinc powder covered with a second layer of polyester powder.