What are some common issues that can arise with BSP Thread fittings?

Here are some common issues that can arise with (British Standard Pipe) BSP thread fittings:

Cross-threading

Occurs when the fitting is not started straight onto the male thread, resulting in a damaged thread. Can cause leaks.

Excessive force strips threads or cracks fitting/pipe. Thread sealant is not a substitute for proper tightening technique.

Not reaching optimal thread engagement leads to leaks over time as seal is not fully compressed.

Incorrect male/female threads (BSPT, BSPP, etc) will not fit together properly.

Angled cuts prevent full thread forming which can compromise the seal.

Dirt, chips etc. caught in threads prevents proper mating and sealing of tapered threads.

From frequent assembly/disassembly, up to 5 uses is typical life expectancy of a thread.

Nick or gouge compromises sealing surface integrity and alignment of thread profile.

Over time, builds up in threads and inhibits assembly or causes leakage.

Proper cleaning, sealing and installation technique helps avoid common BSP thread problems.