A pipe fitter, also known as a steam fitter, is a tradesman trained in the art of organizing, assembling, creating and maintaining mechanical piping systems that must withstand high pressure. These types of systems are usually industrial and include heating and cooling systems, and involve work with steam, ventilation, hydraulics, chemicals and fuel.
This occupation is often overlooked and sometimes confused with the occupation of a plumber. However, a steam fitter and a plumber differ in the fact that plumbers work with low-pressure piping systems, such as utility systems. Pipe fitters work more in welding, and not very much in the fields of water or water sanitation.