Bare-tube heat exchanger (Shell & tube)

Bare-tube heat exchangers: Efficient heat transfer for a wide range of applications

Heat transfer plays a crucial role in a wide range of industrial processes. One proven and highly efficient method of heat transfer is the plain tube heat exchanger. This advanced technology has proven its worth in a variety of industries, from general engineering and chemicals to food processing and power generation. In this article, we will take a closer look at the operation, advantages and diverse applications of Bare-tube heat exchangers.

How a Bare-tube heat exchanger works:

A Bare-tube heat exchanger consists of an arrangement of smooth, usually straight tubes arranged parallel to each other. One medium flows through the inner tubes while the other medium circulates outside the tubes. Heat is transferred by convection and conduction. The medium in the inner tubes can be heated or cooled, depending on the requirements of the process. Optimal flow distribution results in efficient heat transfer between the two media.

Advantages of Bare-tube heat exchangers:

Efficient heat transfer: The smooth tube surfaces allow better flow guidance and thus efficient heat transfer between the media.

Compact design: Compared to other heat exchangers, Bare-tube heat exchangers have a compact design. This saves valuable space in plants and allows optimal use of space.

Low fouling tendency: Smooth inner tubes are less susceptible to scaling and fouling, which reduces maintenance costs and increases uptime.

High pressure resistance: Bare-tube heat exchangers are usually able to withstand high pressures, making them suitable for demanding applications.

Adaptability: Due to their flexibility and adaptability, Bare-tube heat exchangers can be adapted to different process requirements.

Applications of Bare-tube heat exchangers:

The versatility of Bare-tube heat exchangers makes them suitable for a number of applications:

General engineering: for cooling hydraulic oil.

Chemical industry: Bare-tube heat exchangers are used for cooling and heating of chemical reactions, distillation and other processes.

Food processing: in the food industry, they are used for pasteurization, sterilization and temperature control during food processing.

Power generation: In power plants, Bare-tube heat exchangers are used for condensing steam, cooling generators and other energy-related processes.

Pharmaceutical industry: They are used in the production of pharmaceuticals and in sterilization processes.

Process engineering: Bare-tube heat exchangers are used in various processes in process engineering, such as waste heat recovery.


Bare-tube heat exchangers are a sophisticated technology for efficient heat transfer in various industries. Their advantages in efficiency, compactness, and adaptability make them a popular choice for applications where precise heat transfer and temperature control are required. With their wide application and impressive performance characteristics, plain tube heat exchangers contribute significantly to the optimization of production processes, energy efficiency and cost savings in industry.

Contact - Production/Sales

Universal Hydraulik GmbH

Street: Siemensstr.33

City: 61267 Neu-Anspach
Country: Germany

Phone: +49(0)6081-94180



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Universal Hydraulik USA Corp.

Fort Meigs Business Center

Street: 25651 Fort Meigs Rd., Ste. A,

City: Perrysburg, OH 43551
Country: USA

Phone: +1 419 873 63 40



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Universal Hydraulik CZ s.r.o.

Street: Putim 227

City: 39701 Pisek
Country: Czech Republic



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