J.H. Equipment is the best producer of glass lined shell and tube condenser in china. Shell and tube heat exchanger is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. It consists of a shell with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. Heat is transferred from one fluid to the other through the tube walls, either from tube side to shell side or vice versa.