PVC Pipe Quick Connector Adapter Coupling 20-160mm Compression Pipe Fittings

Measure the outer diameter (OD) of your existing pipe with calipers or a tape measure, then match it to the nominal size listed (e.g., a pipe measuring approximately 40mm OD selects the 40mm variant). Do not use the pipe's nominal bore (inner diameter) as the selection criterion — compression fittings size by OD. If you are unsure, contact us with your pipe's measured OD and we can confirm compatibility.

These compression couplings are designed for standard cold-water supply and irrigation pressure ranges typical in residential systems (generally up to 6–10 bar depending on size). For exact pressure ratings by size, please contact us to confirm before installation in high-pressure or critical service applications.

No. These fittings are manufactured from standard rigid PVC, which has a reduced pressure rating at elevated temperatures and is not recommended for continuous hot-water service (above approximately 60°C / 140°F). For hot-water applications, consider CPVC or brass compression fittings rated for higher temperatures.

PVC is inherently corrosion-resistant and will not rust, scale, or degrade from soil contact or moisture exposure under normal conditions. The UV-stabilized formulation also provides reasonable resistance to sunlight for above-ground installations, though prolonged direct UV exposure over many years may cause surface chalking. For long-term buried service, PVC compression fittings are a widely accepted choice.

Yes — one of the key advantages of compression fittings over solvent-weld joints is reusability. You can loosen the compression nut, remove the pipe, reposition or replace it, and re-tighten. However, inspect the compression ring for deformation after each removal; if the ring shows visible damage, replace it before reuse to maintain a reliable seal.

The three colours are functionally identical — the colour difference is purely aesthetic and is commonly used for system identification (e.g., blue for cold water, grey for drainage or conduit). Choose the colour that matches your existing pipework or your project's colour-coding convention. All three colours are available across the most popular sizes.

If you need a single repair or connection point, the 1-pack is sufficient. The 2-pack offers a per-unit saving and is practical if you have multiple joints to make, want a spare on hand for future repairs, or are working on an irrigation system with several lateral connections. The 2-pack price per fitting is lower than buying two individual 1-packs.

No special tools are required. Cut your pipe square (a pipe cutter gives the cleanest end), deburr the cut edge, insert the pipe into the fitting body until it seats fully, then hand-tighten the compression nut. A final quarter-turn with a strap wrench or adjustable spanner is recommended for larger sizes (63mm and above) to ensure a firm, leak-free seal. No solvent cement, primer, or heat is needed.