Grey PVC 50mm ID Pressure Pipe Fittings Metric Solvent Weld Various Parts

These fittings are sized for standard metric 50 mm ID (inside diameter) grey uPVC pressure pipe, which typically has an outside diameter of approximately 50 mm on the spigot end. Always measure your existing pipe's OD and confirm it matches the socket bore before solvent-welding. If you are connecting to imperial pipe, use the BSP-threaded adaptor variants listed in the Part selector.

These fittings are grey uPVC, a material widely used in cold-water pressure pipework. Suitability for potable water depends on the solvent cement used and local building regulations. For confirmed potable-water approval in your region, contact us to confirm the relevant certification before installation.

Use a PVC solvent cement rated for uPVC pressure pipe — typically a medium-bodied grey or clear cement conforming to BS 6920 or equivalent. Apply a thin, even coat to both the spigot and socket, push firmly together with a slight twist, and hold for 30 seconds. Allow the joint to cure for at least 15 minutes before handling and 24 hours before pressure-testing.

A reducing socket accepts two different pipe sizes directly into its ends — ideal when you want a clean inline transition. A reducing bush inserts into a standard same-size socket to convert it to a smaller bore, which is useful when you already have a socket fitting in place and need to step down without replacing it. Both achieve the same size reduction; the choice depends on your existing pipework layout.

Yes. The 3-way, 4-way, 5-way, and 6-way elbows are designed for exactly this application — splitting a single 50 mm feed into multiple outlet directions in a compact footprint. Each port is a standard 50 mm solvent-weld socket, so you can run individual branch lines to pumps, filters, or UV units. Fewer joints mean fewer potential leak points compared to building the same manifold from standard tees.

Both union types allow you to disconnect a section of pipework without cutting — useful for servicing pumps or filters. The Old Type uses a traditional threaded collar design, while the New Type features an updated locking mechanism for easier hand-tightening and a more secure seal. If you are replacing an existing union, match the type to your current fitting for compatibility. For new installations, the New Type is generally recommended.

Both red-handle and blue-handle ball valves are functionally identical 50 mm solvent-weld ball valves. The handle colour is a convention used in plumbing to distinguish hot (red) from cold (blue) supply lines, making it easier to identify circuits at a glance. You can use either colour on any line — select the colour that matches your system's labelling convention or personal preference.