Industrial semi-welded heat exchanger

The Alfa Laval Industrial semi-welded ammonia heat exchanger line is a high performing range designed to resist high pressures, extreme temperatures and hazardous media. It offers a reliable solution for refrigeration applications, safely handling most refrigerants including ammonia. In chemical processing, the semi-welded solution offers a high performing, media separated solution with no risk of cross-contamination.

The semi-welded ammonia plate heat exchanger from Alfa Laval is suitable for refrigeration, chemical processes and various kinds of industrial utility duties. The unique Alfa Laval RefTight sealing system guarantees a long lifetime sealing between the welded channels because the laser weld is on the outside of the ring gasket groove. The smooth surface ensures a tight uniform seal over the entire gasket ring.


  • Space-saving compact unit
  • Low operating cost possible owing to superior energy efficiency and prolonged service intervals
  • Safe and reliable sealing with no risk of cross-contamination
  • Pressure and temperature fatigue resistant

You can order the Alfa Laval Industrial semi-welded heat exchanger line for various temperature programs, pressure drop limitations, media and operating pressures. The various sizes in the product line cover a full range of heat transfer capacities and flows. All are carefully designed and selected to achieve optimal performance. For more information on available dimensions, product leaflets and animations please visit the Industrial semi-welded plate heat exchangers product page on the Alfa Laval website.



Alfa Laval



Related Products

Go to top