Plumbers, Pipefitters, and Steamfitters ·  Assemble, install, alter, and repair pipelines or pipe systems that carry water, steam, air, or other liquids or gases. May install heating and cooling equipment and mechanical control systems. Includes sprinklerfitters.



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Occupational Tasks ·  Cut, thread, and hammer pipe to specifications, using tools such as saws, cutting torches, and pipe threaders and benders.
· Assemble and secure pipes, tubes, fittings, and related equipment, according to specifications, by welding, brazing, cementing, soldering, and threading joints.
· Attach pipes to walls, structures and fixtures, such as radiators or tanks, using brackets, clamps, tools or welding equipment.
· Inspect, examine, and test installed systems and pipe lines, using pressure gauge, hydrostatic testing, observation, or other methods.
· Measure and mark pipes for cutting and threading.
· Lay out full scale drawings of pipe systems, supports, and related equipment, following blueprints.
· Plan pipe system layout, installation, or repair according to specifications.
· Select pipe sizes and types and related materials, such as supports, hangers, and hydraulic cylinders, according to specifications.
· Cut and bore holes in structures, such as bulkheads, decks, walls, and mains, prior to pipe installation, using hand and power tools.
· Modify, clean, and maintain pipe systems, units, fittings, and related machines and equipment, following specifications and using hand and power tools.
· Install automatic controls used to regulate pipe systems.
· Turn valves to shut off steam, water, or other gases or liquids from pipe sections, using valve keys or wrenches.
· Remove and replace worn components.
· Assemble pipe sections, tubing and fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing and welding equipment.
· Fill pipes or plumbing fixtures with water or air and observe pressure gauges to detect and locate leaks.
· Review blueprints and building codes and specifications to determine work details and procedures.
· Prepare written work cost estimates and negotiate contracts.
· Study building plans and inspect structures to assess material and equipment needs, to establish the sequence of pipe installations, and to plan installation around obstructions such as electrical wiring.
· Keep records of assignments and produce detailed work reports.
· Perform complex calculations and planning for special or very large jobs.
· Locate and mark the position of pipe installations, connections, passage holes, and fixtures in structures, using measuring instruments such as rulers and levels.
· Measure, cut, thread, and bend pipe to required angle, using hand and power tools or machines such as pipe cutters, pipe-threading machines, and pipe-bending machines.
· Install pipe assemblies, fittings, valves, appliances such as dishwashers and water heaters, and fixtures such as sinks and toilets, using hand and power tools.
· Cut openings in structures to accommodate pipes and pipe fittings, using hand and power tools.
· Hang steel supports from ceiling joists to hold pipes in place.
· Repair and maintain plumbing, replacing defective washers, replacing or mending broken pipes, and opening clogged drains.
· Direct workers engaged in pipe cutting and preassembly and installation of plumbing systems and components.
· Install underground storm, sanitary and water piping systems and extend piping to connect fixtures and plumbing to these systems.
· Clear away debris in a renovation.


Educational Requirements: ·  Long-term on-the-job training (> 12 months)


Occupational Skill Set
Skill Relevance
·  Installation 81%
·  Active Listening 81%
·  Mathematics 76%
·  Troubleshooting 76%
·  Repairing 76%
·  Instructing 75%
·  Critical Thinking 75%
·  Complex Problem Solving 75%
·  Active Learning 74%
·  Installation 74%