Brazed plate heat exchanger, two-pass, LC170-20-2S-DN50SS (connections: 6 stainless steel flanges) 0207-1494

High Performance in a Compact Housing

This fully stainless steel, two-pass plate heat exchanger is designed for demanding liquid-to-liquid heating and cooling installations. Thanks to its copper-brazed construction in a vacuum furnace, the unit guarantees complete leak-tightness and joint durability, which is critical for operation under high pressure. With a maximum working pressure of 30 bar and a flow temperature reaching 230 °C, this model performs reliably even in circuits with high thermal loads.

Applications and Benefits for Installations

The optimal shaping of flow channels is not merely theoretical—it translates into tangible savings during installation and operation. Engineers benefit from low flow resistance, simplifying pump selection, while end users achieve high heat exchange efficiency with reduced energy consumption. The two-pass version (designated by the symbol 2S) enables superior heat exchange performance in situations involving large temperature differences or requiring precise process control.

The heat exchanger is also characterized by:

• High corrosion resistance – stainless steel material ensures long service life even under challenging chemical conditions of water or refrigerant.
• Universal connections – the unit features six stainless steel flanges (DN 50), facilitating integration with existing piping systems without the need for additional reducers.
• Insulation capability – the design allows for the use of dedicated insulation jackets, minimizing heat loss and protecting personnel from burns.

Installation and Operating Conditions

The installation process is simplified thanks to the robust construction and the absence of aging-prone rubber gaskets. The permanent brazing of plates eliminates the risk of leaks caused by mechanical clearances. With dimensions of 688 mm in height and 258 mm in width, the unit occupies relatively little space, despite handling large liquid flow rates through DN 50 nominal diameter connections on both the primary and secondary sides.

Parameters such as material corrosion resistance and pressure strength up to 30 bar determine its suitability for high-pressure systems without failure risk. The high operating temperature up to 230 °C makes it ideal for industrial boiler rooms or solar systems, while the two-pass version ensures higher efficiency under large temperature differences between circuits. Thanks to this combination of mechanical strength and thermal efficiency, this heat exchanger forms a solid foundation for modern HVAC systems where reliability is a priority.