heat exchanger for difficult and critical processes where other types of heat exchangers such as rotary scraped surface heat exchanger, shell and tube or plain type are incapable of offering an adequate solution. Unicus® is capable of generating high levels of turbulence in products of high viscosity increasing substantially the overall heat transfer coefficient. In addition it does not allow the formation of any fouling layers on the inner tube surfaces and always stays clean enabling the unit to work in the optimum condition for efficient heat transfer at all times.