Brazed plate heat exchanger double-pass LD235-40L-2S-DN80SS (connections: 6 stainless steel flanges) 0255-0410

Compact Performance in Demanding Conditions

The LD235-40L-2S-DN80SS brazed plate heat exchanger is designed for installations where not only efficient heat transfer but also resistance to extreme operating conditions is crucial. Thanks to its two-pass construction, this model offers significantly higher performance compared to standard single-pass solutions, which is essential for more demanding heating or cooling system parameters. The unit effortlessly handles temperatures up to 230 °C and a working pressure of up to 30 bar, making it a versatile component in district heating and industrial systems.

Applications and Benefits for Installations

The main advantage of this model is the optimal design of the flow channels. Engineers have shaped them to achieve an ideal compromise between low flow resistance and high thermal efficiency. Importantly, this construction prevents the accumulation of contaminants inside the heat exchanger, resulting in a longer service life and reduced maintenance requirements. The entire assembly is made of stainless steel and brazed with copper in a vacuum furnace – a process that guarantees tightness and durable bonding of the plates, eliminating the risk of failures caused by leaks in mechanical joints.

For installers, ease of installation and disassembly is also important, as well as the ability to adapt the heat exchanger to existing infrastructure thanks to large DN 80 connections on both sides (primary and secondary). These connections are provided as stainless steel flanges (6 pieces), facilitating integration with main pipelines. The unit also features high corrosion resistance and the ability to withstand cyclic pressure and temperature changes without loss of operational properties.

Key Operational Parameters and Dimensions

When designing a heating or cooling system, it is worth considering the specific data of this model. The heat exchanger operates in a liquid-to-liquid environment, achieving a maximum flow temperature of 230 °C at a working pressure of 30 bar. Both sides of the heat exchange – primary and secondary – have a nominal diameter of DN 80, allowing for high flow rates of the medium without unnecessary resistance. The connections are realized via 6 stainless steel flanges, and the casing material is stainless steel brazed with copper, ensuring high corrosion resistance.

It is important to note the unit's dimensions: height is 788 mm and width is 310 mm. Despite its high thermal capacity, the heat exchanger occupies relatively little space in the boiler room. The construction is adapted for the installation of thermal insulation, allowing for additional reduction of heat losses in the system. All these features make this model suitable for applications requiring reliable operation under variable system parameters.