Lays out, assembles, installs, and maintains pipe systems, pipe supports, and related hydraulic and pneumatic equipment for steam, hot water, heating, cooling, lubricating, sprinkling, and industrial production and processing systems, applying knowledge of system operation, and following blueprints: Selects type and size of pipe, and related materials and equipment, such as supports, hangers, and hydraulic cylinders, according to specifications. May be designated according to type of system installed as Pipe Fitter, Ammonia; Pipe Fitter, Fire-Sprinkler Systems; Pipe Fitter, Gas Pipe; or type of piping used as Pipe Fitter, Plastic Pipe; Pipe Fitter, Soft Copper.