AlfaBlue - BDM-BDD-BDD6 - Dry coolers
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Catalog excerpts

AlfaBlue - BDM-BDD-BDD6 - Dry coolers - 1

Dry coolers AlfaBlue BDM, BDD/BDD6 Application The Alfa Laval dry coolers can be used in refrigeration, air conditioning equipment and in Industrial Cooling (cooling of water or other different fluids), Power, Process and General Industry. Heat exchanger This innovative heat exchanger provides excellent heat transfer with minimized coolant charge thanks to the new Alfa Laval fin corrugation and two tube sizes, 1/2” (BDM/BDD series) and 5/8” (BDD6 series). BDM is a single fan-row model while the BDD/BDD6 has two fan motor rows. The standard is to manufacture the heat exchanger from copper tubes and aluminium fins with a 2.1mm spacing. The BDD/BDD6 series have double connections allowing for two independent lines. Each manifold is provided with draining and venting nozzles. Each heat exchanger undergoes a dry air pressure and leakage test at 11 bar. Fan Motor On the BDM, four different fan diameters are available: 630, 800, 910, 1000 mm; on the BDD and BDD6, 800, 910, 1000 mm with three-phase motor 400V-50Hz. The motors are with external rotor, protection class IP54 according to DIN 40050. AlfaBlue, BDM and BDD/BDD6 Integrated thermal protection by thermo contacts provides reliable protection against thermal overload. Five fan motor noise levels, (S) standard, (L) low, (Q) quiet, (R) residential and the new (T) high performance fan, are available for these dry coolers. Dry coolers BDM/BDD/BDD6 800mm fans are available in four fan motor noise levels, (S), (L), (Q) and (R). Dry Coolers BDM/BDD/BDD6 910 are available in five fan motor noise levels, (T) , (S) , (L) , (Q) and (R). Dry Coolers BDM/BDD/BDD& 1000 are available in three fan motor noise levels, (L), (Q) and (R). New bell mouths optimize the performance of the fan motors and minimize the noise level. Each fan chamber is separated by internal baffle plates which enables optimal capacity control by separate running of the fans. Frame and Casework Casework made with galvanized steel sheets painted (corrosion resistance class C4). New design frame provides high rigidity also for heavy applications. New system protects perfectly the heat exchanger tubes during transportation and operation against vibration and thermal expansion. Support manufactured in galvanized steel, with optimised length to permit uniform air suction in the coil.

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AlfaBlue - BDM-BDD-BDD6 - Dry coolers - 2

FEATURES AND BENEFITS Footprint – Optimised footprint with higher capacity 630, 800, 910 and 1000 mm fan diameter – More performance available – Low power consumption fan motor – More choice on noise level – Flexible design RAL 9002 all parts painted – No cut edge – Higher corrosion resistance class (C4), double surface treatment – Longer product life Coil design – Increased heat transfer thanks to innovative fins corrugation Flanges UNI EN 1092-1 (on BDD/BDD6) in stainless steel – Easy and accurate piping connection – Faster installation Casing – Strong casing with new design High energy...

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AlfaBlue - BDM-BDD-BDD6 - Dry coolers - 4

ERC00032EN 0709 All rights reserved for changes in specifications How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com Dimensions BDM Dimensions BDD/BDD6

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