A series of semi-welded plate heat exchangers has been specifically designed and tested to fit ammonia-based industrial refrigeration applications.

The SW19-59 range from Danfoss is said to provide improved thermal performance due to a more compact design with optimized plate geometry to support high turbulent flow and a lower charge.

To help ensure the operational safety that is essential in ammonia applications, the gasket system and grove design has been engineered to ensure gasket stability and good plate alignment. The design is optimized for ease of maintenance. It reportedly improves the sealing effect and prevents gasket-blow out. In addition, the risk of contamination is reduced due to the double-gasket barrier that will drain potential leakages outside of the plate pack.