3/4" - 1/2" BSP Brass Pipe Fittings – Elbow 90°, Tee & Union Coupler, Male & Female Thread

Measure the outer diameter of your pipe threads and match to the nominal BSP size. For reference, a 3/4" BSP thread typically has an outer diameter of approximately 26.4mm (≈1.04"), and a 1/2" BSP thread is approximately 20.9mm (≈0.82"). Always verify with a thread gauge or caliper before ordering. If you're connecting two different pipe sizes, select a reducer configuration such as 1/2" × 3/4".

Brass BSP fittings of this type generally support working pressures up to 200–400 PSI depending on the fitting configuration, installation quality, and the media being conveyed. For critical or high-pressure applications, please contact us to confirm suitability before purchasing.

Brass is naturally corrosion-resistant and performs well in damp, outdoor, and humid environments — making it a common choice for garden irrigation and outdoor water supply connections. For highly corrosive environments such as saltwater exposure or chemical media, additional protective measures or alternative materials may be advisable.

No — BSP (British Standard Pipe) and NPT (National Pipe Thread) are not directly interchangeable. While nominal sizes may appear similar, the thread angles and pitches differ. Using BSP fittings on NPT threads will typically result in cross-threading or leaks. Always confirm your existing pipe thread standard before purchasing. BSP is commonly used in the UK, Australia, and many parts of Asia; NPT is standard in North America.

Male BSP fittings have external threads that screw into a female-threaded port or fitting. Female BSP fittings have internal threads that accept a male-threaded pipe or fitting. This product offers both configurations across straight unions, elbows, and tees — in male-to-female, female-to-female, and male-to-male combinations — so you can match your existing pipe ends without needing additional adapters.

For a leak-free seal, it is generally recommended to use PTFE thread tape (plumber's tape) or a suitable pipe thread sealant compound on BSP parallel threads. Apply 2–3 wraps of PTFE tape in the direction of the thread before assembly. BSPT (tapered) threads may form a mechanical seal on their own, but tape is still advisable for most DIY and plumbing applications to ensure a reliable, long-lasting connection.

Choose a Union/Coupler to connect two pipes end-to-end in a straight line. Choose a 90° Elbow when you need to change the pipe direction by a right angle — useful for routing pipes around corners or through walls. Choose a Tee fitting when you need to branch a pipe run into two directions, such as splitting a water supply line to feed two separate outlets or adding a new fixture to an existing run.