PIP/Materials/TBT-PIP-021
Ductile Iron Pipe Handling and Jointing
Pipelines & Pipework › Materials › Ductile Iron Pipe Handling and Jointing
Toolbox Talk
Ductile Iron Pipe Handling and Jointing
Ductile iron pipes are widely used for water mains and sewers because of their strength and durability. However, they are heavy, rigid, and difficult to handle safely in trenches. Incorrect handling can cause crush injuries, and poorly made joints can fail under pressure during testing or service. This talk covers the safe handling, installation, and jointing of ductile iron pipes on UK construction sites.
Key Hazards
Crush injuries from pipes rolling or shifting during handling in trenches
Back injuries from manual handling of heavy pipe sections and fittings
Finger and hand entrapment during spigot-and-socket joint assembly
Pressurised water release from incorrectly jointed pipes during testing
Control Measures
- Use excavator-mounted pipe lifts or slings for lowering pipes into the trench safely.
- Never stand in the trench directly below a pipe being lowered by the excavator.
- Check pipe bedding is prepared to the correct grade and profile before positioning the pipe.
- Lubricate the spigot and gasket with approved lubricant before pushing the joint home.
- Use a mechanical joint pulling device rather than forcing joints with the excavator bucket.
- Inspect every joint visually and check the insertion mark before backfilling the trench.
- Anchor all bends, tees, and dead ends with thrust blocks or restraint fittings before testing.
- Establish an exclusion zone during hydrostatic pressure testing in case of joint failure.
- Wear safety gloves and boots at all times during pipe handling and jointing operations.
Remember
- Never stand beneath a pipe being lowered into a trench by an excavator or crane
- Use a mechanical joint puller to make joints, never force them with the excavator bucket
- Lubricate the gasket and spigot with approved lubricant before pushing the joint home
- Anchor all bends, tees, and dead ends before carrying out any pressure testing
- Establish an exclusion zone during pressure testing in case of joint failure
Applicable Legislation: LOLER 1998 · Manual Handling Operations Regulations 1992 · Pressure Systems Safety Regulations 2000 · CDM 2015
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