White PVC 25mm ID Pressure Pipe Fittings Metric Solvent Weld Various Parts

These fittings are sized for metric uPVC pressure pipe with a 25mm outer diameter (OD). The socket bore accepts the pipe spigot end for solvent cementing. Do not use with imperial ¾" pipe, which has a different OD and will not form a reliable solvent-weld joint.

No. Rigid uPVC is rated for cold-water service only — typically up to around 20 °C at full pressure rating, with derating at higher temperatures. For hot water, use CPVC or another material rated for elevated temperatures. The Ball Valve (5–55 °C / 1.0 MPa) variant extends the usable temperature range for valve applications only.

Use a PVC solvent cement formulated for uPVC pressure pipe — typically a medium-bodied, fast-set cement for 25mm fittings. Clean and dry both surfaces, apply cement to the pipe spigot and socket bore, push together with a quarter-turn, and hold for 30 seconds. Allow the joint to cure fully before pressurising (typically 1–2 hours at room temperature, longer in cold conditions).

Standard-wall sockets, elbows, and tees are suitable for most domestic cold-water and irrigation applications where working pressure is well within the pipe's rated limit. Choose thick-wall variants (Socket Thick, 90° Elbow Thick, Tee Thick) when working pressure is higher, when the fitting is in a location subject to mechanical impact, or when the pipe system is rated for a higher pressure class.

Yes. Apply PTFE thread seal tape to male BSP threads before assembly to ensure a watertight seal. The PTFE Thread Seal Tape variant is available in this listing if you need it. Female BSP sockets do not require tape on their own threads — the tape goes on the male fitting being screwed in.

Yes. The brass FBSP (female British Standard Pipe) and MBSP (male BSP) socket adaptors conform to BSP thread standards and will connect to standard brass, copper, or stainless fittings with matching BSP threads. Available in ½" and ¾" sizes to suit common pump inlets, tap connectors, and irrigation valves.

Yes. Rigid uPVC is chemically inert and widely used in aquatic systems. The fish tank connector (straight and 90° elbow) and fish tank drainage fittings are specifically designed for aquarium and sump plumbing. Standard sockets, elbows, and tees are also suitable for pond recirculation pipework once the solvent cement has fully cured and the system has been flushed.

Both union types allow the pipe run to be disconnected without cutting, which is useful for servicing pumps or filters. The Old Type and New Type refer to different collar and seal designs — both are priced identically and suit 25mm solvent-weld pipe. If you are replacing an existing union, match the type to your current fitting to ensure the collar threads are compatible.