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Closed Circuit Cooling

    
 Watermiser manufacture a range of Glass Reinforced Plastic closed circuit cooling towers that incorporate copper cooling coils to provide a completely non-corroding package. However, where the cooling duty allows (i.e. on all but applications that require a close approach to the ambient wet bulb temperature) Watermiser would offer a package comprising of an open evaporative cooling tower with a matched plate heat exchanger.

The tower plus heat exchanger package has many distinct advantages over a closed circuit cooling tower, i.e.

  • The GRP cooling tower with a stainless steel plate heat exchanger and pipework provides a non-corroding package.
  • Closed circuit cooling tower coils are difficult to maintain and clean. Heat exchangers can be opened to allow cleaning of the complete heat transfer area.
  • Closed circuit towers have virtually no potential for uprating, heat exchangers can easily have plates added.
  • Closed circuit coils are prone to frost damage.
  • Heat exchanger can be positioned remote from the cooling tower if required.

Each package normally comprises of :

  • a GRP open evaporative cooling tower.
  • a heat exchanger with grade 304 or 316 stainless steel plates.
  • a tower to heat exchanger pump.
  • pipework between the tower and heat exchanger manufactured in grade 304 stainless steel.
  • a common structural steel mounting frame, hot dipped galvanised after manufacture.

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