Brazed plate heat exchanger two-pass LC170-90-2S-DN50SS (connections: 6 stainless steel flanges) 0207-1501

Application and Performance in Demanding Conditions

This two-pass plate heat exchanger, model number 0207-1501, is a solution dedicated to installations requiring high performance while maintaining compact dimensions. The unit is designed for liquid-to-liquid systems, in both heating and cooling circuits. A key feature of its construction is the ability to operate with flow temperatures reaching up to 230 °C and a working pressure of up to 30 bar. These parameters make it suitable for demanding industrial applications or modern boiler rooms where standard devices may not withstand thermal loads.

The optimal shaping of flow channels is not merely theoretical – it translates into real operational benefits. Thanks to this solution, low flow resistance is achieved while maintaining high heat exchange efficiency. Equally important, this channel geometry prevents the accumulation of contaminants inside the unit, reducing the risk of failures and extending the interval between service inspections. The two-pass version allows for even better utilization of the heat exchange surface under more demanding installation operating parameters.

Construction, Material, and Resistance

The entire unit is made of stainless steel, ensuring high corrosion resistance – a key feature when working with various heating or cooling media. The tightness of the construction and the durable bonding of the plates are achieved through copper brazing in a vacuum furnace. This method guarantees no risk of leaks resulting from mechanical connections or gaskets that could wear out over time due to thermal cycles.

The heat exchanger is characterized by high resistance to pressure and temperature changes, making it a reliable system component even under dynamically changing operating conditions. Despite high thermal loads, the unit maintains relatively compact dimensions – its height is 688 mm with a width of 258 mm, allowing installation in spaces with limited room, such as technical cabinets or narrow installation ducts. It is worth noting that the construction allows for the application of thermal insulation, which is important for maintaining the energy efficiency of the entire system and preventing heat loss in technical rooms.

Installation and Hydraulic Connections

For the installer, ease of integrating the device with existing infrastructure is crucial. The heat exchanger is equipped with nominal diameter DN 50 connections on both sides (primary and secondary). On the primary side, stainless steel flanges are used (6 pieces included in the set), facilitating installation on steel pipelines or other corrosion-resistant materials. On the secondary side, and as the main connection, external threading is provided, offering flexibility in selecting connecting elements.

Simple installation and potential disassembly result from the thoughtful plate construction and the absence of complex fastening elements requiring specialized tools for regular service (although brazed heat exchangers are typically maintenance-free units). This reduces installation time and minimizes the risk of assembly errors. This device forms a solid foundation for heating and cooling systems, combining material durability with proven vacuum brazing technology. Its versatility allows for use in both new projects and modernizations of existing district heating networks or air conditioning systems.