Sentry TRW Sample Cooler

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The Sentry TRW sample cooler cools a sample from a process stream. It may seem simple, but it is a uniquely designed small tube in a shell heat exchanger. The sample to be cooled flows through the tube side of the cooler, and the cooling fluid, usually water, flows through the shell side. The cooled sample then is taken to a laboratory for analysis or piped to in-line process instrumentation for continuous monitoring of properties such as conductivity, pH or other chemical constituents

The Sentry TRW sample cooler is compact and provides the industrial boiler user with a cost-effective and efficient sampling alternative. Its small profile allows for easy installation on or near the boiler. It offers optimal service for flows below 1200 cc per minute for single phase heat transfer. Standard tube side material is 300 series stainless steel.


  • Helical coil design
  • Ideal for cooling low-pressure boiler water
More Information
Standards Sentry
Tube Diameter 1/4 in OD
Shell Material 304 SS
Tube Material 316/316L SS
Shell Pressure 250 psig at 450°F (17 barg at 232°C)
Tube Pressure 2000 psig at 850°F (138 barg at 454°C)
Process Connections 1/4 in OD Tube
Cooling Water Connections 3/8 in FNPT
Heat Transfer Area 1.2 ft² (0.11 m²)

Boiler and Steam Sample Coolers

Sentry sample coolers are designed to handle a variety of sample temperatures and volumes to match your application needs. Our compact sample coolers are manufactured to cool samples efficiently before being tested for other properties such as conductivity, pH, and more.

Our team of sample cooler manufacturers have developed a variety of easy-to-install options with durable, efficient designs. These configurations were designed with your uptime in mind and is backed by a knowledgeable team of engineers ready to help with any issues or technical concerns that may occur.

Sentry sample coolers are designed to be compatible with any type of heat exchanger, including tube heat exchangers, shell heat exchangers or shell and tube heat exchangers. These designs ensure efficient and cost-effective sampling with accurate results – getting samples within 1 degree of target temperatures.

Each product within this category is designed to meet specific sample cooler needs. If you have any questions, don’t hesitate to reach out to our team.

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