Brazed plate heat exchanger double-pass LD235-90-2S-DN80SS (connections: 6 stainless steel flanges) 0255-0134

High Performance in a Compact Housing

This two-pass plate heat exchanger LD235-90-2S-DN80SS is a solution designed for demanding heating and cooling installations where efficient heat transfer between two liquid circuits is critical. Thanks to its vacuum furnace brazed copper construction, the unit guarantees full tightness and durability of connections, eliminating the risk of leaks even under high loads. Its compact dimensions (788 mm height and 310 mm width) allow installation in spaces with limited room, despite the device handling large flow rates and thermal loads.

Application and Key Structural Advantages

The unit is constructed from stainless steel, ensuring high corrosion resistance and long-term operation in challenging environmental conditions. Specially shaped flow channels not only minimize flow resistance but also prevent the accumulation of contaminants, resulting in lower maintenance costs and extended installation lifespan. The two-pass version (designation 2S) is particularly useful where more rigorous operating parameters are required – it enables higher heat exchange efficiency while maintaining optimal pressure drops.

This heat exchanger handles extreme operating conditions thanks to resistance to temperatures up to 230 °C and a working pressure reaching 30 bar. Both sides of the unit (primary and secondary) are equipped with nominal diameter DN 80 connections, finished with external threads. To facilitate installation in piping systems, 6 stainless steel flanges are included, ensuring quick and leak-tight connections without the need for additional adapters.

Installation and System Compatibility

The installation process has been simplified through thoughtful design – the unit can be easily mounted and, if necessary, disassembled for cleaning or replacement. The fact that this model is intended for an insulation jacket allows additional protection against heat loss or condensation, which is standard in modern HVAC installations. Thanks to the use of stainless steel as the main material and precise brazing, the heat exchanger meets high requirements for safety and reliability in industrial and commercial systems.

By combining high thermal and mechanical resistance with optimized liquid flow, this model forms a solid foundation for efficient liquid-to-liquid heating and cooling systems. It is worth noting its material resistance – stainless steel and copper brazing ensure durability at temperatures up to 230 °C and pressures of 30 bar. DN 80 connections with external threads and the included flanges facilitate integration with existing installations without the need for additional piping adaptations.