How to Choose Pipe Fittings
Use this checklist to avoid ordering the wrong size or connection type. When in doubt, match the fitting to the pipe manufacturer and system.
Steps
- Identify the system. Waste, soil, rainwater, underground drainage, or pressurised water all use different standards.
- Measure the size. Use the nominal size and confirm diameter. Avoid guessing.
- Pick the fitting type. Bend, tee, coupler, reducer, adaptor, or access piece depending on the job.
- Match the connection method. Solvent weld, push-fit, compression, or ring seal. Stick to one method per joint unless specified.
- Confirm compatibility. Check internal or external rating, temperature limits, and chemical resistance.
Common checks
- Do you need a male or female adaptor to connect to a trap or appliance.
- Do you need access for rodding or inspection.
- Is the run horizontal or vertical, and will it need clips or supports.
Browse pipe and fittings across waste, soil, rainwater and underground drainage.