Welko EL 50 C Welded Plate Heat Exchanger
What is a Welded Plate Heat Exchanger?
Welded plate heat exchangers are compact heat exchangers made of metal plates that provide highly efficient heat transfer between two or more fluids. In these exchangers, the fluids circulate in completely independent channels, and heat exchange occurs through the plates. The welded structure of the plates enables safe operation under high pressure and temperature conditions.
Working Principle of a Welded Plate Heat Exchanger
In welded plate heat exchangers, hot and cold fluids enter the unit through separate inlets. As the fluids flow through channels formed between thin metal plates, heat is transferred through the plate surfaces. The large surface area of the plates increases heat transfer efficiency. Maximum heat recovery is achieved thanks to the counter-flow principle.
Advantages of the Welded Structure
The most important feature of welded plate heat exchangers is that the plates are joined using copper or nickel welding methods. This structure provides:
- Maximum sealing performance
- Prevention of fluid mixing
- Resistance to high pressure and temperature
- Reduced maintenance requirements since no gaskets are used
These features make welded plate heat exchangers ideal for demanding industrial applications.
Technical Specifications
- Minimum Operating Temperature: -195 °C
- Maximum Operating Temperature: +220 °C
- Design Pressure: 30–45 bar
- Pressure Type: Suitable for standard and high pressures
- Connection Type: Threaded or welded
- Welding Type: Copper and nickel welded
Application Areas
Welded plate heat exchangers have a wide range of applications:
- Industrial process systems
- Chemical and petrochemical plants
- Power generation and distribution systems
- HVAC (heating, ventilation, and air conditioning)
- Marine applications
- High-speed trains
- Food and beverage industry
Thanks to their compact design, they can be easily installed in tight spaces while providing high thermal efficiency.
Conclusion
Welded plate heat exchangers offer safe, efficient, and long-lasting heat transfer solutions under high pressure and temperature conditions. With their leak-proof structure, compact design, and wide application range, they are among the preferred heat exchangers in industrial facilities.