U-Tube Heat Exchanger is a heat exchanger that uses tube bundle is shaped like the letter “U”, where both ends of the tube only connects to one tubesheet. This design allows the tubeto expand freely toward the curved end without creating thermal, thus reducing stressdue to the difference in temperaturewhich is very contrasting between the incoming and outgoing fluids. Although cleaning the inside of the U-tube is quite difficult to do mechanically, its main advantage lies in the ease of pulling out the entire U-tube bundlefor cleaning the outside (shell side), as well as more economical costs compared to type floating head.