Alfa Laval

AXPM High-Pressure Brazed Plate Heat Exchanger

The Alfa Laval AXPM is a high-pressure copper-brazed plate heat exchanger engineered for air-conditioning and refrigeration systems with extremely high pressure requirements. Thin external carbon steel frames reinforce the compact, gasket-free unit, making it particularly well suited to CO2 duties such as transcritical gas cooling.

Product Benefits

  • Built for extreme pressure: The AXPM answers a specific problem: how to keep the compactness and efficiency of brazed plate technology when system pressures climb far beyond what standard units are built for.
  • External frame carries the load: The frame reinforcement takes the pressure load, so the exchanger remains small and light.
  • No gaskets to limit life: The unit is free of gaskets that would otherwise limit service life.
  • Even evaporator performance: It can be supplied with a refrigerant distribution system for even performance in evaporator-style duties.
  • Simple rigging: Every unit is delivered with lifting lugs to simplify rigging and installation.

Where It's Used

  • Air conditioning and refrigeration: This is the natural home of the AXPM.
  • CO2 transcritical gas cooling: It is used above all in CO2 systems, where transcritical gas cooling pushes operating pressures to extremes.
  • Sustainable refrigeration plants: That makes it a fit for plants moving to CO2 as a sustainable working fluid.

Good to Know

  • Materials: Stainless steel plates are joined by copper brazing, with a zinc-electroplated carbon steel external frame.
  • Connections and vacuum: Connections come as external thread, soldering or welding, and the design tolerates full vacuum.
  • Approvals: Approvals cover PED and UL.
  • Sealed unit: Like all brazed exchangers it is a sealed unit, so fluid cleanliness and filtration are the key to long service.
  • Matched to the duty: The design is matched closely to the duty, so discuss your pressure and capacity requirements when selecting.