The SW19-59 range of semi-welded plate heat exchangers is specifically designed and tested to fit ammonia-based industrial refrigeration applications. The exchangers offer good thermal performance due to the optimized plate geometry that supports high turbulent flow, enabling a compact design and lower charge. Because operational safety is essential in ammonia applications, the company engineered a new gasket system to ensure high gasket stability and optimal plate alignment. This enables fast installation, service and maintenance while preventing gasket blow-out. Also, the risk of contamination is reduced due to the glue-free, double-gasket barrier that will drain potential leaks outside of the plate pack.