Floating Head Heat Exchanger is a type of heat exchanger tube bundle by means of welded or in-expand permanently on tubesheet, but tube bundle is not connected to shell. This system is very effective for high-pressure applications with minimal risk of leaks, and is easy to maintain; the inside shell is easy to clean mechanically because it can be removed from the shell, so this tool is most suitable for use with clean or dirty fluids on the shell.