CENTRIPAL EU
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Industrial Centrifugal Fans:

The Centripal EU range has been designed by Flakt Solyvent Ventee to become the new European Reference of Centrifugal fans in the Flakt Woods Group. The latest innovations are reflecting the 90 years of experience of Flakt Solyvent Ventee, strongly recognised on the market for its high performance characteristics, reaching up to 88% efficiency with airfoil blades. The development of the range has enabled a high level of standardisation integrating all ancillaries and fittings, enabling fans to be delivered in short lead times, with a maximum of flexibility.

Centripal EU: a modular concept built around A design made and adapted Pressurised or depressurised kilns, fans working as blowers or in exhaust mode. GENERAL VENTILATION - FUME EXTRACT Extractors in workshops, fresh air make up and supply, fans for filtering systems, clean rooms... PROCESS FANS IN PAINT BOOTHS Fans with removable impeller design, re-circulating fans for furnaces, exhausters in spray booths... FANS FOR GLASS INDUSTRY Fans for ovens, glass mould cooling, furnace wall cooling, glass annealing, blowers in the cooling process. CHEMICALS - GAS EXPLOSION PROOF DESIGN FOR...

highest aerodynamic performance for nearly all industrial applications TEXTILE MACHINERIES Blowers, exhausters and re-circulating fans for the complete production process. WOOD AND PAPER INDUSTRIES Blowers/exhausters for kilns in de-dusting, dryers for paper or wood production processes. FOOD INDUSTRY Coolers, dryers, water evaporation [pasta, milk...) MARINE - OFFSHORE Exhausters, blowers, motor cooling, engine room air circulation... FANS FOR ORIGINAL EQUIPMENT MANUFACTURERS (OEM'S) Machines for packing, plastic films, DC motor cooling, generator cooling, sweepers, ... IMPELLERS AND INLET...

5 typical features determining a centrifugal fan I 1 I Single width impeller. Belt Driven Arrangement. Overhung impeller fitted onto an intermediate shaft, supported by 2 bearings mounted on a Support. I 4 I Single width impeller. Direct Driven Arrangement. Overhung impeller directly fitted on motor shaft. No bearings on the fan. Motor is fixed on a Support. I 5 I Single width impeller. Direct Driven Arrangement. Overhung impeller directly fitted on motor shaft. No bearings on the fan. Flanged motor fixed on a fan casing. 6 I Double width impeller. Belt driven arrangement Impeller mounted...

- 6 blade types, depending on air transported [see page 8 - 9]: D, B, P, L, S, T. -11 performance envelopes, corresponding to impeller width (L, M, K, H, IU, P, R, S, T, V, W). [Small sizes] 5 • Material type and coatings • Carbon steel or Stainless steel [3D4L, 31BL, 31 BTi...] •Standard coating, epoxy, galvanized steel, zinc spray... □rive Impeller Type of Impeller Rotation Discharge Material Coatings: Arrangement width blades diameter direction Adx: F24.2 steel, - Std : standard 4-5: direct L""»W (D-B (mm) RD = [Right] AISI304 L: RAL 7035 (powder) 1 : belt 9""»0 P-L LG = (Left) stainless...

Basic Fan selection information ? High fan efficiencies, low sound power levels, high performance, small surface area and long life are obtained from the fans design and selection according to the given criteria. Fan selection is derived from: • the nature of the air to be moved and fan environmental conditions. • design requirements [volume, pressure...). • drive arrangement and discharge direction, available space, accessories and options... Suitable for handling clean air with relative humidity levels not exceeding 80 %. particularly low sound power levels. [backward curved). Suitable...

Mechanical and vibration tests □ur Computerized finite Element Analysis has allowed to eliminate all the natural frequencies within the working speed ranges. Guaranteed vibration levels [following ISO 14694 BV3) : [flat, slightly backward inclined). Suitable for handling air laden with abrasive or slightly clogging dust. Efficiencies of up to 77 % with relatively low sound power levels. Recommended for handling air laden with powdery, abrasive and clogging dust. [unshrouded paddle blade). This blade type resist damage due to fan

Some useful information about directive 94/9/EC: Applicable since July 1st 2003. All new installations have to conform to this new regulation. All existing installations have to be analysed and risk assessed using this new code by the end of June 2006. This European directive is applicable on all electrical equipments, and rotating machineries which are installed in an hazardous area. It is responsibility of the end user and his installer to define precisely the zone in which the fan is going to run. Zone can be different inside and outside the fan. Category of machinery has to correspond...

special features of an ATË^ Fan Some other construction details imposed by the directive for steel impellers for example are: Fully welded construction above 11 kW. Carbon shaft: carbon has the ability to be worn is on first start up without burning, as the seal is perfectly adjusted to the motor shaft. This means that there is no risk of ignition during start up. Anti-spark linings in brass protecting all rotating parts: cooling disk, pulleys, shafts, Brass or copper inlet cones for a maximum safety, combined with a minimum dis- tance between rotating and static parts. All bolted parts are...

Small sizes

Centripal EU small sizes: an innovative range, Arrangement 5: the most compact désign A modular concept from 250 to 710 mm • Fixation on the inlet flange. • Fixation on the outlet flange. • Fixation with 2 feet on the floor. Product features: • From 250 up to 71 □ mm impeller Diameter. • Small surface area. • Frequency converter speed control possible. • All impeller types available. Applications : de dusting, OEM (cooling, drying...). Arrangement 4; a complete and cost effective range Orientable construction □ne casing to suit all arrangements: 14 different orientations available in 45°...