BSP Female Thread Brass Pipe Fitting Adapter | Coupler Connector 1/2" 3/4" 1"

Measure the outer diameter of your pipe's male thread and match it to the corresponding BSP size: 1/2" BSP fits pipes with approximately 21mm (13/16") thread OD, 3/4" BSP fits approximately 26mm (1"), and 1" BSP fits approximately 33mm (1-5/16"). For reducer fittings (e.g., 3/4" × 1/2"), the first dimension is the larger port and the second is the smaller port. When in doubt, use a thread gauge or consult your pipe documentation.

Brass BSP fittings generally handle working pressures up to 150 PSI (approximately 10 bar) for water and compressed air applications at ambient temperatures. Actual ratings depend on temperature, media, and installation quality. For high-pressure, steam, or gas applications, contact us to confirm suitability before ordering.

Brass has naturally good corrosion resistance and is suitable for most indoor plumbing and moderate outdoor use. For prolonged outdoor or marine exposure, apply PTFE thread tape and inspect the fitting periodically for signs of dezincification. Brass is generally not recommended for highly acidic, chlorinated, or ammonia-rich environments.

No — these fittings use BSP (British Standard Pipe) threads, which are not directly interchangeable with NPT (National Pipe Thread). BSP threads have a 55° thread angle and different pitch than NPT's 60° angle. Mixing the two standards may result in leaks or cross-threading. Please confirm your pipe thread standard before ordering.

The standard variant is a fixed female-to-female adapter — the most common choice for straightforward pipe joining. The thickened variant features a heavier wall body for added durability in higher-stress or high-vibration installations. The live nut (union nut) variant includes a rotating nut that allows you to connect pipes without rotating the fitting body itself — ideal for tight spaces or when existing pipes cannot be turned.

Yes — it is generally recommended to use PTFE thread tape or a suitable pipe thread sealant compound on BSP parallel threads to ensure a leak-free seal. Apply 2–3 wraps of PTFE tape in the direction of the thread before assembly. Tighten firmly by hand, then use a wrench for a final snug turn. Avoid overtightening, which can crack the fitting body or damage threads.

These brass BSP fittings are generally suitable for water, compressed air, natural gas (where local codes permit), and light hydraulic fluids. They are not recommended for strong acids, alkalis, or acetylene gas. Always verify compatibility with your specific media and applicable local plumbing or gas codes before installation.