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When a leaking joint or a missing adapter brings your plumbing project to a halt, having the right fitting on hand makes all the difference. Whether you are a homeowner tackling a bathroom renovation, a hobbyist building a custom irrigation loop, or a workshop builder routing water lines, these PVC BSP threaded fittings give you a reliable, leak-resistant connection without the complexity of solvent welding.
Each fitting is moulded from rigid PVC and carries a standard BSP (British Standard Pipe) thread profile. The range spans 1/2" through 4" nominal pipe sizes, with metric equivalents from 20 mm to 110 mm (approximately 0.79 in to 4.33 in). Sixteen fitting types are available — including nipples, straight adaptors, elbows, tees, ball valves, hose connectors, end plugs, fish-tank fittings, and open pipe clips — in White, Blue, Grey, and Black.
Typical applications include residential cold-water supply lines, garden irrigation manifolds, aquarium and fish-tank plumbing, workshop air-line distribution (low-pressure), and DIY hydroponics systems. Long-tail search terms that describe this product: BSP threaded PVC pipe adaptor, 1/2 inch PVC nipple fitting, 20mm female thread straight connector, PVC ball valve water supply.
| Material | Rigid PVC (Polyvinyl Chloride) |
|---|---|
| Thread Standard | BSP (British Standard Pipe) |
| Available Types | Nipple, Female Thread Straight, Reducing Female Straight, Male Threaded Adaptor, Male Thread Hose Connector, Female Thread Hose Connector, Female Thread Elbow, Reducing Female Thread Elbow, Female Thread Tee, Reducing Female Threaded Tee, Fish Tank Fittings, Male Pipe End Plug, Female Pipe End Plug, Washers For End Plug, Ball Valve Female Threaded, Open Pipe Clips |
| Nominal Size Range | 1/2" – 4" BSP (20 mm – 110 mm) |
| Colour Options | White, Blue, Grey, Black |
| Wall Thickness | See variant options |
| Pressure Rating | See variant options |
| Temperature Range | See variant options |
| Sealing Method | PTFE tape or thread sealant (not included) |
| Quantity per Pack | 1 piece (multi-pack options available — see variant options) |
Match the nominal BSP size to your existing pipe thread. BSP sizes are labelled by nominal bore, not actual outer diameter — for example, a 1/2" BSP fitting suits pipe with an OD of approximately 20.9 mm (0.82 in). If you are unsure, measure the outer diameter of your pipe and compare it to a BSP thread chart, or check the markings on your existing fittings. The metric size shown in the variant name (e.g., "20mm x 1/2"") refers to the pipe OD × BSP thread size.
These fittings are designed for cold-water supply applications. Standard rigid PVC has a service temperature typically up to around 60 °C (140 °F) under low pressure, but performance varies by wall thickness and pressure rating. For hot-water lines above 60 °C, consider CPVC or brass fittings instead. Always confirm the pressure and temperature rating for your specific variant before installation.
Wrap 2–3 layers of PTFE (plumber's) tape clockwise around the male thread before assembly. Hand-tighten first, then use a strap wrench (not metal pipe wrench) for a final 1–2 turns. Avoid over-tightening, which can crack PVC threads. For parallel BSP threads, use a thread sealant compound in addition to PTFE tape for a reliable seal.
Yes. The listing includes dedicated Fish Tank Fittings (bulkhead-style) in 20 mm, 25 mm, 32 mm, 40 mm, and 50 mm ID sizes, available in White, Blue, and Grey. PVC is inert and safe for freshwater and marine aquarium use once fully cured. Rinse fittings thoroughly before submerging in a live system.
A Male Pipe End Plug has an external (male) BSP thread and is screwed into a female-threaded socket or fitting to cap it off. A Female Pipe End Plug has an internal (female) BSP thread and is screwed onto a male-threaded pipe end or nipple to seal it. Choose based on the thread type of the pipe end you need to cap.
The Ball Valve Female Threaded variants are standard PVC ball valves with female BSP threads on both ends, sized from 1/2" through 4". Bore type (full-bore vs. reduced-bore) varies by size — contact us to confirm the bore specification for your required size before ordering.
PVC fittings are generally not recommended for compressed air lines due to the risk of brittle fracture under pressure. For low-pressure air applications (under 0.5 bar / 7 psi), some PVC fittings may be used, but always verify the pressure rating for your specific variant. For gas lines, use only fittings rated and certified for gas service.
