This work activities involves laying and aligning pipe, disassembling and removing damaged or worn pipe and repairing or replacing defective vessel parts. This database includes an analysis of the hazards associated with these tasks, as well as practical measures for making such work safer.

• Apply caulk, cement and plastic solvent sealants
• Assemble pipes, tubing and fittings
• Assemble vessel structures and parts
• Cut and drill holes in structures prior to pipe installation
• Cut, thread, hammer and bend pipes and vessel tubes
• Deburr and grind pipes and vessel tubes
• Disassemble and remove damaged or worn pipe
• Flush and purge pipelines
• Inspect and use mechanical lifts
• Inspect and use scaffolds and ladders
• Install pipe assemblies, fittings, valves, appliances and fixtures
• Lay and align pipe in trenches
• Load, unload and distribute pipes and other construction materials
• Mount brackets and hangers on walls and ceilings to hold pipes
• Purge, break, blank lines in confined space
• Repair or replace defective vessel parts
• Rig materials for transport and installation
• Weld, braze, solder, cut, or gouge pipe sections or vessel parts
• Work inside vessels