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Sentry DTC Dual Tube Coil Heat Exchanger

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Configure Your DTC
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Sentry DTC (dual tube coil) tube-in-tube heat exchangers are spirally wound, full counter flow heat exchangers well suited for a variety of applications where low flow rates of high temperature and/or high pressure fluids need cooling or heating. The sturdy tube-within-a-tube concept uses heavy duty terminal fittings to provide for a plain tube end interface for the inner tube, and a compression connection for the outer tube.

The plain end of the inner tube is easily adapted to a variety of connections including compression, threaded, socket weld, sanitary clamp and many more. The tube-within-a-tube design also provides for high pressure/temperature capabilities on both sides of the heat exchanger, providing greater application flexibility. The single continuous inner tube increases reliability and cleanliness and allows the unit to be completely drainable.


  • Fully drainable inner and outer coil
  • Spiral wound for maximum counterflow efficiency
  • Constant fluid velocity
  • No dead spots or crevices
  • Excellent for multi-phase/multicomponent fluids and slurries
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