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Leaking joints and mismatched pipe sizes are among the most frustrating setbacks in any plumbing or irrigation build. Whether you are a DIY enthusiast tackling a garden irrigation system or a workshop builder assembling a fluid-transfer line, you need fittings that seal tight, resist corrosion, and connect pipes of different diameters without adapters piling up. These PVC T-piece 90° threaded fittings are designed to solve exactly that problem.
Each fitting is manufactured from rigid PVC-U (unplasticized polyvinyl chloride), a material known for its chemical resistance, dimensional stability, and long service life in both pressure and non-pressure pipe systems. The grey colour is standard for pressure-rated PVC pipework. Available in equal tee configurations (20mm, 25mm, 32mm) and reducer tee configurations (25mm×½", 32mm×½", 32mm×¾"), the fittings cover pipe sizes ranging from approximately 20mm (¾") up to 32mm (1"), with threaded female BSP ports for secure, wrench-tightened connections.
Typical use cases include garden drip-irrigation manifolds where a reducer tee splits a 32mm main line down to a ½" branch, residential grey-water plumbing where equal tees distribute flow evenly, and workshop compressed-air or chemical-dosing lines that require a corrosion-resistant, solvent-weld-compatible fitting. Long-tail applications such as "PVC threaded reducer tee for irrigation", "grey PVC-U 90 degree T fitting 25mm", and "BSP female tee coupling for pipe manifold" are all served by this range.
| Material | PVC-U (Unplasticized Polyvinyl Chloride) |
|---|---|
| Colour | Grey |
| Fitting Type | T-Piece (Tee), 90° |
| Configuration | Equal Tee / Reducer Tee (see variant options) |
| Available Sizes | 20mm, 25mm, 32mm (equal); 25mm×½", 32mm×½", 32mm×¾" (reducer) |
| Thread Standard | BSP (British Standard Pipe) Female |
| Connection Method | Threaded (wrench-tightened) |
| Wall Thickness | See variant options |
| Pressure Rating | See variant options |
| Temperature Range | Suitable for cold-water systems (typically up to 60°C / 140°F) |
| Quantity per Pack | 1 piece (1pcs) |
Choose the equal tee (Gleich) when all three ports of your T-junction connect pipes of the same diameter — for example, a 25mm main line splitting into two 25mm branches. Choose the reducer tee (Reduzierer) when your main run is a larger pipe and the branch outlet needs to be a smaller size — for example, a 32mm main line with a ½" (approximately 20mm) branch for a drip emitter or valve. Check the size label in the variant selector: "25mm×½"" means the two in-line ports are 25mm and the branch port is ½" BSP female.
The equal tee variants fit standard PVC-U pressure pipe in 20mm (approximately ¾"), 25mm (approximately 1"), and 32mm (approximately 1¼") outside diameters. The reducer tee variants combine a 25mm or 32mm in-line port with a ½" or ¾" BSP female branch port. Always verify the outside diameter of your existing pipe before ordering, as nominal pipe sizes can vary between standards (metric vs. imperial).
PVC-U fittings are widely used in low-to-medium pressure cold-water systems such as garden irrigation, pool plumbing, and residential supply lines. The exact pressure rating depends on the specific size and wall thickness of the variant. For critical or high-pressure applications, please contact us to confirm the rated working pressure before installation. Do not use these fittings in systems that exceed the rated pressure or temperature.
Yes. PVC-U is inherently corrosion-resistant and does not rust, scale, or degrade when exposed to chlorinated water, mild acids, alkalis, and many common fertilizers used in irrigation. It is not suitable for strong solvents, concentrated oxidizing acids, or aromatic hydrocarbons. For chemical-dosing applications, verify compatibility with your specific fluid before use.
All threaded ports use BSP (British Standard Pipe) female threads, also known as BSPP (parallel) or G-thread. BSP is the most common thread standard used in European and many international plumbing systems. If your existing fittings, valves, or pipe nipples have BSP male threads, these tees will connect directly. If your system uses NPT (US National Pipe Thread) or other standards, you will need a BSP-to-NPT adapter.
These PVC-U fittings are designed for cold-water and ambient-temperature fluid systems. PVC-U begins to soften at elevated temperatures, and its pressure rating drops significantly above approximately 60°C (140°F). They are not suitable for hot-water supply lines, steam systems, or solar thermal circuits. For hot-water applications, consider CPVC or polypropylene fittings instead.
Yes, it is recommended to use PTFE (plumber's) tape or a compatible thread sealant compound on the male threads before assembling the joint. Wrap PTFE tape clockwise (when viewed from the thread end) 2–3 times for a reliable seal. Hand-tighten first, then use a wrench for a further ½ to 1 full turn — avoid over-tightening, which can crack PVC-U fittings. Do not use petroleum-based sealants, as they can degrade PVC.
