EWK-D

  • CENTRIFUGAL VENTILATION
  • OPEN CIRCUIT

Low noise and low profile centrifugal cooling towers.

  • Forced draft
  • Centrifugal fan
  • Fan driven by pulleys and belts
  • Low noise emission levels, being able to minimize with silencers (DA model)
  • Low hight
  • Total vibration isolation
  • Polyester casing corrosion free
  • Modular design
  • Integrated frame support
  • Low energy consumption
  • Pre-assembled at the factory / Easy to install
  • Internal materials highly resistant to extreme temperatures
  • Standard Fill materials in Polypropylene with anti-legionella treatment (SANIPACKING®) 

Technical Features

Model *Dissipation
kw		 Empty weight
kg		 Service weight
kg		 Fan Power
kw		 Long
mm		 Wide
mm		 High
mm		 Dim. Drawing Dwg. Drawing
WITHOUT MUFFLERS
EWK-D 225/2 349 718 1495 5,5 3191 1612 2470
EWK-D 225/3 360 718 1495 7,5 3191 1612 2470
EWK-D 225/4 379 718 1495 7,5 3191 1612 2470
EWK-D 324/2 490 1010 2135 7,5 3585 1896 2535
EWK-D 324/3 518 1010 2135 11 3585 1896 2535
EWK-D 324/4 546 1010 2135 11 3585 1896 2535
EWK-D 450/2 685 990* 2870* 11 4151 2209 2565
EWK-D 450/3 720 990* 2870* 15 4151 2209 2565
EWK-D 450/4 758 990* 2870* 15 4151 2209 2565
EWK-D 680/2 1035 1500* 4300* 15 5183 2369 2600
EWK-D 680/3 1088 1500* 4300* 18,5 5183 2369 2600
EWK-D 680/4 1146 1500* 4300* 22 5183 2369 2600
EWK-D 900/2 1275 2100* 5500* 18,5 6486 2092 2600
EWK-D 900/3 1392 2100* 5500* 22 6486 2092 2600
EWK-D 900/4 1517 2100* 5500* 30 6486 2092 2600
WITH MUFFLERS
EWK-DA 225/2 349 1292 2069 5,5 4191 1612 3465
EWK-DA 225/3 360 1292 2069 7,5 4191 1612 3465
EWK-DA 225/4 379 1292 2069 11 4191 1612 3465
EWK-DA 324/2 490 1650 2775 7,5 4585 1896 3550
EWK-DA 324/3 518 1650 2775 11 4585 1896 3550
EWK-DA 324/4 546 1650 2775 15 4585 1896 3550
EWK-DA 450/2 685 2218 3736 11 5096 2209 3600
EWK-DA 450/3 720 2218 3736 15 5096 2209 3600
EWK-DA 450/4 758 1590 3580 15 5096 2209 3600
EWK-DA 680/2 1035 3157 5881 15 6178 2369 3890
EWK-DA 680/3 1088 3157 5881 18,5 6178 2369 3890
EWK-DA 680/4 1146 3157 5881 22 6178 2369 3890
EWK-DA 900/2 1275 3619 6833 22 7496 2092 3890
EWK-DA 900/3 1392 3619 6833 30 7496 2092 3890
EWK-DA 900/4 1517 3619 6833 30 7496 2092 3890
*Heat rejection at the following conditions: Tin: 35,0 ºC, Tout: 30,0 ºC, Twb: 24,0 ºC

Working Principles

Cooling towers bring a cold and dry air mass in counter-flow to hot water that comes from an industrial or air conditioning process. Part of this water evaporates, cooling the rest. The necessary heat for this is approx.597 Kcal/liter. The cold water produced is returned into the process to re-initiate the cycle. The equipment with this evaporative refrigeration principle are very important for energy efficiency in industrial processes.

The difference between the required cold water temperature and the wet bulb temperature (called cooling limit distance), is significant to determine the size of the tower. The smaller the cooling distance is, the bigger the interchanging surface is needed. The limit distance must be of at least 3-4º C.

In open cooling towers there is a close contact water-air, which is bigger thanks to the fill packings, that provide a big surface of exchange, and allow towers to be smaller.

Additional equipment

  • PRFV with SANIPACKING® treatment casing
  • Exhaust and intake silencers
  • Winter pack (Thermostat & Immersion heater)
  • Electric motor frequency converters
  • PTC sensor for the motor
  • Sensors for the level of water in the basin.
  • Water treatment dosing system
  • Attenuators of noise from the drops in the basin
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