Pipe fitters assemble, secure and install supports, pipes, tubes, fittings, or related equipment and devices, according to plans specifications, by different methods that include welding, brazing, cementing, soldering, threading joints, fusing, etc. Attach and secure pipes to walls, decks, structures and fixtures, such as radiators, tanks, chillers, cooling towers, boilers, etc. using brackets, clamps, tools or welding equipment.