Transmission-drive axial-flow fan with light alloy die-cast impeller with wing-profile blades. Motor placed outside the ducting drum.
V = 2.300÷65.000 m3/h
Pt = 6÷75 kg/m2
Use: the helical electric fans, type EVc are partucularly suitable for the suction of fumes and for contaminated, dusty and damp air.
This type of fan is mainly used in the spray booths where it offers a considerable safety guarantee against the danger of fire due to the particular construction with rotor of spark-proof material and the motor anchoraged on the outside of the fan.
Minimum working temperature - 20 °C, maximum + 70 °C.
ErP: these fans are covered by Directive 2009/125/EC. This law does not apply in the following cases:
- Operation in potentially explosive atmospheres (ATEX)
- Operation with high temperatures (fans designed with cooling fan)
- Operation with temperatures below -40°C
- Working in toxic, corrosive or abrasive enviroments (use of material such as AISI 304, AISI 316, manganese steels).
These series are axial fans and therefore expected Ntarget = 50 (Reg. UE N.327/2011).
ErP calculations take into account efficiency IE2 motors conforming to IEC 60034-30.
|Weight without engine||Kg|