HANSA Kältetechnik - Quality and experience made in Germany For decades, HANSA Kältetechnik GmbH has been standing for quality, safety and reliability in components for refrigeration and air conditioning systems.Our products are known for their outstanding quality, safety and reliability in use and energy- and environmentally-conscious manufacturing processes. In mobile air conditioning systems, stationary and commercial refrigeration systems as well as in plant engineering, we ensure operational safety and long-lasting functionality "Made in Germany". With us you will find products for different pressure ranges, made of high-quality materials at market-driven prices. HANSA Kältetechnik is part of the Wilms Industries