PQ-L/AT
Backward curved blade centrifugal fan

GENERAL DESCRIPTION

Fans of PQ-L series find their main application in industrial plants of conditioning, ventilation, heating and filtering; they can also be used as part of manufacturing process (wood industry, chemical industry, mills, mines, foundries, etc.). They can convey dusty (not abrasive) air and smoke, with max. temperature of 80°C in the standard configuration and up to 300°C with specials constructions. The series foresees direct drive version (execution 4) and belt drive version (execution 1, 9 and 12). Suitable for high capacity, medium-high pressures.

CONSTRUCTION

• Volute casing in steel sheet , protected against atmospheric agents by epoxy paint.
• Aerodynamically shaped inlet cone in steel sheet, protected against atmospheric agents by epoxy paint.
• Single inlet backward curved wheel with high efficiency, manufactured in steel sheet and epoxy painted. For high rotational speed, versions in class 3 are foreseen.
• For execution 1 – 9 – 12: mono-block support in cast iron with ball bearings, , designed for easy lubrication. Pulleys, belts and motor support. Belt protection guard.
• Asynchronous three-phase motors according to international standards IEC 60034, IEC 60072, EMC 2004/108/CE, LVD 2006/95/CE, CE marked, IP 55, class F, suitable to S1 service (continuous working at constant load).

ACCESSORIES

• Condensation drain hole (TS)
• Inspection door (PI)
• Inlet counter-flange (CFA)
• Outlet counter-flange (CFP)
• Inlet protection guard (RA)
• Outlet protection guard (RP)
• Inlet flexible connector (GA)
• Outlet flexible connector (GP)
• Inlet vane control
• Outlet setting shutter
• Anti-vibration mounts

UPON REQUEST

• High temperature version suitable for conveying hot gases, Max 150°C (PQ-L/AT EX4).
• High temperature version suitable for conveying hot gases, Max 300°C (PQ-L/AT EX1,12).
• Corrosion resistant version, manufactured with casing, inlet side and impeller in stainless steel AISI304 (PQ-L/INOX).
• ATEX version, with asynchronous three-phase motors II2G, II2D, II2GD according to international standards IEC 60034, IEC 60072, IEC 60079 and/or IEC61241, EMC 2004/108/ CE, LVD 2006/95/CE, with Atex certification, CE marked, IP55/IP 65, class F, suitable to S1 service (continuous working at constant load).

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