Packaged Cooling Systems
— Closed-Loop System with Shell & Tube Exchanger

Closed-Loop System with Shell & Tube Exchanger

Certain processes require a closed-loop, whereby the process water for cooling does not come in contact with the atmospheric air. This prevents the cooling water from picking up particles that may not get filtered or even dissolved gases. Closed-loop cooling requires more energy and has higher initial and life-cycle costs than an open cooling tower, but provides an added protection to expensive processes or chillers being cooled.



  • Can be used in systems with higher operating temperatures and pressures
  • Pressure drop across a shell and tube cooler is less
  • Tube leaks are easily located and plugged since pressure test is comparatively easy
  • Shell and tube heat exchangers in refrigeration system can act as receiver also
  • Better solution when fluid has high risk of clogging plate heat exchanger


  • Heat transfer efficiency is less compared to plate type heat exchanger, wider approach temperatures
  • Cleaning and maintenance can be difficult since a tube cooler requires enough clearance at one end to remove the tube nest
  • Capacity of tube cooler cannot be increased easily
  • Requires more space in comparison to plate heat exchangers
The Most Durable Corrosion-Proof Cooling Towers Available
corrosion proof cooling towers

Corrosion Proof & Seamless Cooling

Delta Cooling Towers contain one piece, shell or casing, eliminating issues with seams, welds, and patches. Because they are rust and corrosion proof, Delta’s Cooling Tower Systems endure longer lifecycles.

Cooling Towers Manufacturer Warranty

Low Maintenance
and 20-Year Warranty

Our overall maintenance is minimal and the tower shell does not require preventive maintenance which lowers cost and expensive downtime. The benefits are extraordinary!

water cooling sustainability


Water chemistries and engineered plastic cooling towers combined translate into an extremely effective solution to water conservation as well as cost savings.

quiet cooling tower systems

Low Sound &
Other Special Options

The noise pollution of commercial HVAC equipment has become an increasingly unwanted problem for communities. Delta Cooling Towers are unrivaled among other manufacturers in providing solutions.

USA and international company

Made in

The term “Made in the USA” speaks of quality, excellent craftsmanship, and a superior product. Delta ranks as the technology leader among cooling towers manufacturers in USA!

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From our low maintenance design to our manufacturing process to excellent customer service, we're sure you'll be pleased with our superior cooling towers, every step of the way. Get a quote