Products
Shell-and-tube heat exchanger
Liquid coolers/heaters · Oil coolers · Steam condensers · Steam generators · Exhaust gas heat exchangers
Shell-and-tube heat exchangers are suitable for efficient heat transfer between liquids and gases – with or without a phase change. They are used to heat and cool a wide variety of media. Heat transfer media include water, thermal oil and saturated steam, among others. The standard series comprises six sizes with heat transfer surfaces from 0.5 to 500 m².
Types
Six types: G, GK, GV and GD.
Type G: shell-and-tube heat exchanger
Our shell-and-tube heat exchangers are suitable for heat transfer between liquids and gases. Depending on the application, different materials are used – up to high-grade stainless steels with high corrosion resistance. Operating gauge pressures of up to 800 bar are possible. The standard series comprises six sizes with heat transfer surfaces of up to 150 m².
Type GK: shell-and-tube condenser
This heat exchanger is suitable for heating liquids and gases by condensation of saturated steam, superheated steam or refrigerant. Depending on the application, the heating medium can be routed on the tube side or the shell side. Various designs in horizontal or vertical orientation enable heat transfer duties of up to 20 MW.
Type GV: shell-and-tube evaporator
Type GV is suited to the efficient cooling of liquids by evaporating refrigerants. In addition to various refrigerants, ammonia in particular is used. Depending on the application, the heat exchanger is built in a horizontal or vertical orientation. Variants with a removable or permanently welded tube bundle are available.
Type GD: steam generator
The type GD shell-and-tube heat exchanger is suited to the indirect generation of low- and high-pressure steam. The heating medium is predominantly steam, hot water or thermal oil. The units are mostly arranged horizontally and, depending on pressure and volume, are manufactured with the required test certificates. This allows the steam generator to be optimally adapted to the respective operating conditions and requirements.
Type GA: exhaust gas heat exchanger
The GA series is used to recover waste heat from flue gases. The heat recovered from thermal combustion processes and CHP plants is transferred to hot water, thermal oil or, for example, the combustion air. In special applications, the condensation heat of flue gases can also be utilized. This way, you can make good use of the heat from thermal combustion processes and benefit economically.
Type GS: safety heat exchanger
Using double-wall tubes eliminates the risk of the two media mixing. The interspace is filled with a barrier fluid that absorbs thermal expansion and, via a pressure switch, monitors the leak-tightness of the tubes. Any breaches are reported automatically.
Advantages of ETS shell-and-tube heat exchangers
ETS Energie-Technik-Systeme AG has been developing innovative solutions for over 20 years to offer companies exactly the shell-and-tube heat exchangers that match their specific requirements.
Removable bundles
The series includes designs with removable or permanently welded tube bundle inserts.
Safety heat exchanger
For type GS, a pressure switch monitors the leak-tightness of the tubes via the barrier fluid in the interspace. In the event of a possible tube rupture, a notification is triggered automatically.
Materials
Shell and head in steel, galvanized steel, RILSAN-coated steel or stainless steel V2A/V4A. Cooling tubes in SF-CU, CuNi10Fe, CuNi30Fe, steel or V2A/V4A. Special materials such as nickel, C22 and titanium on request.
Thermal expansion compensation
Special designs with U-tubes, floating tube sheet (D design) or expansion joint (K design) compensate for thermal expansion.
Design and function
A shell-and-tube heat exchanger transfers heat between two separate media circuits. The warmer medium releases its heat through the tube walls to the colder medium. This allows liquids and gases to be heated or cooled efficiently.
The heat exchanger essentially consists of a casing and a tube bundle insert. The casing is a robust welded construction and includes the required connections and fastening elements. Depending on requirements, the plain-tube bundle can be designed as a single-pass or multi-pass version.
Different designs are available for different thermal requirements. U-tubes (U design), floating tube sheets (D design) or an expansion joint (K design) compensate for large changes in length between the shell and the tube bundle caused by thermal expansion.
Technical specifications – shell-and-tube systems
Design parameters for the standard plain-tube bundle series.
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Typical fields of application for this heat exchanger type
Where shell-and-tube heat exchangers are used
Shell-and-tube heat exchangers are highly versatile in their use and are employed in various industry sectors, e.g.:
- Power plant engineering
- Machinery industry
- Gearbox manufacturing
- Chemical industry
- Process engineering
Downloads
Product brochure
Shell-and-tube heat exchanger
Questions & answers on sizing
Useful information about shell-and-tube heat exchangers in plant operation.
What advantages do ETS exhaust gas heat exchangers offer in operation?
Our exhaust gas heat exchangers combine efficient heat recovery with high operational safety. Certified designs support safe operation in compliance with the relevant requirements and help improve the economic efficiency of your plant. In addition, the heat exchangers are designed for easy maintenance. With ETS AG’s service, you also have a knowledgeable contact available after delivery.
Which industries use ETS exhaust gas heat exchangers?
ETS exhaust gas heat exchangers are used wherever industrial processes generate waste heat that can be put to use. They are suitable for a wide range of industries and applications. Our fields of application include the food and chemical industries, power plant engineering, and the machinery and paper industries. In waste incineration plants, too, exhaust gas heat exchangers offer efficient options for heat recovery.
How does ETS support the selection of a shell-and-tube heat exchanger?
We offer individual, no-obligation advice on your selection, at attractive prices and with personal support throughout the entire implementation.
When should a safety design (double-wall tube) be chosen?
Type GS is used wherever the two media must never be allowed to mix. This is relevant, for example, in lubricating-oil cooling circuits with river-water cooling, to prevent a possible escape of oil into the environment. Type GS also offers a safe solution in chemical process engineering, particularly for applications with highly reactive media and critical combinations of substances.
Heat exchangers: always the right units for your company
Leave the thermodynamic sizing and strength design to our experienced experts. We determine the right solution for your application and will gladly prepare a no-obligation quote for you. Simply fill out our contact form. One of our team members will get back to you as quickly as possible.
If you have questions, we are available by phone. Discuss your requirements with one of our knowledgeable team members. We are happy to assist you personally.