BSP Brass Pipe Fitting Connector Adapter – Flange Fixed, Female/Male Thread

Measure the outer diameter of your pipe's male thread or the inner diameter of the female port, then match it to the nominal BSP size. As a general guide:

• 1/4" BSP — typically suits pipes around 13mm (≈1/2") OD
• 3/8" BSP — typically around 17mm (≈11/16") OD
• 1/2" BSP — typically around 21mm (≈13/16") OD
• 3/4" BSP — typically around 26mm (≈1") OD
• 1" BSP — typically around 33mm (≈1-5/16") OD

When in doubt, use a thread gauge or consult your pipe documentation before ordering.

These fittings use BSP (British Standard Pipe) parallel threads, also known as G-thread. They are not directly compatible with NPT (National Pipe Taper) threads commonly used in US plumbing without a dedicated BSP-to-NPT adapter. Always confirm your existing pipe thread standard before ordering.

Brass generally offers good corrosion resistance and is suitable for many outdoor and humid applications including garden irrigation and exterior compressed air lines. For highly aggressive environments — such as saltwater exposure or acidic media — additional protective measures or a different alloy may be advisable. Applying PTFE tape or a bonded seal washer is recommended to maintain a leak-free seal over time.

Brass BSP fittings of this type typically handle working pressures in the range of 150–600 PSI depending on size and wall thickness. Larger sizes generally have lower pressure ratings. For your specific application's pressure requirements, please contact us to confirm the rated specification for the size you need.

A Female×Male fitting has one female (internal thread) end and one male (external thread) end — useful for extending a run, changing thread direction, or connecting a male-threaded pipe to a female-threaded port. A Male×Male fitting has external threads on both ends, typically used to connect two female-threaded couplings or ports back to back.

The flange fixed design incorporates a collar that allows the fitting to be mounted and secured to a panel, bracket, or bulkhead. This prevents the fitting from rotating during installation and in service, providing a stable, vibration-resistant connection point — particularly useful in equipment panels, manifolds, and enclosures where a floating fitting would be impractical.

Yes — BSP parallel (G) threads rely on a face seal rather than a tapered thread seal. It is generally recommended to use an appropriate O-ring or bonded seal washer at the mating face. PTFE tape can be used as a secondary measure on the threads. Do not rely on thread engagement alone for a pressure-tight seal.