High-pressure fan APRI/N8 series

centrifugalsuctionfor chemical applications

Use: for the suction of clean and dusty air. These types of high pressure fans are characterized by a high output with saving of electric power as they have a special fan wheel with reversed blades (negative) assembled. These types of fans are particolarly suitable for pneumatic conveyances, in cement factories, in the air feeding fo the cupolas in foundries, in the mills, in “pasta” factories, in chemical, metallurgical and iron industries where medium and high pressures are required. This series with direct control by means of a semi-elastic joint has been realized for the purpose of obtaining the maximum sturdiness keeping and the noise very low. The connection between fan and motor with the joint eliminates the axial and radial thrusty on the motor supports assuring in this way a long working life to the motor. Temperature of the fluid 90°C. With cooling fan on the support 350°C max. 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 centrifugal backward curved fans and therefore expected Ntarget = 61 (Reg. UE N.327/2011). ErP calculations take into account efficiency IE2 motors conforming to IEC 60034-30.