Brazed double-pass plate heat exchanger LD235-210-2S-DN80SS (connections: 6 stainless steel flanges) 0255-0146

High Performance in a Compact Housing

This two-pass plate heat exchanger, constructed using copper-brazing technology, is designed for operation in demanding liquid-to-liquid heating and cooling installations. Its design enables efficient heat transfer even under high thermal loads, which is crucial in modern energy systems. Thanks to the use of stainless steel and vacuum furnace brazing, the unit features exceptional tightness and corrosion resistance, resulting in a long service life without the need for frequent maintenance.

Applications and Key Structural Advantages

The optimal shaping of flow channels is not merely theoretical—in practice, it means low flow resistance while maintaining high heat transfer efficiency. Such a layout minimizes the risk of contaminant accumulation inside the unit, which is particularly important in installations with variable loads. This heat exchanger also stands out for its high resistance to sudden pressure and temperature changes, making it a safe choice for systems operating under harsh conditions.

For installers, the possibility of mounting the two-pass version offers greater flexibility when dealing with more demanding operating parameters. Nominal diameter DN 80 connections on both sides (primary and secondary), along with external threads, facilitate integration with existing infrastructure. It is worth noting that the unit is designed for the installation of thermal insulation jackets, which further improves the overall energy efficiency of the system.

Operating Conditions and Dimensions

The unit has been tested for operation under extreme thermal and pressure conditions. The maximum flow temperature reaches 230 °C, and the maximum working pressure achieves 30 bar—parameters that allow the use of this heat exchanger even in advanced industrial systems or high-temperature central heating installations. Compact dimensions (height 788 mm, width 310 mm) ensure that despite its high thermal power, the unit does not occupy excessive space in the boiler room or technical room.

The heat exchanger is made of stainless steel, guaranteeing corrosion resistance. Operation is possible at a maximum working pressure of 30 bar and a temperature up to 230 °C. Both the primary and secondary sides feature DN 80 connections with external threads, facilitating pipe connections. Thanks to the possibility of installing an insulation jacket, heat losses are minimized, and the simple plate construction facilitates any necessary servicing or disassembly for cleaning.