A BSPP fitting, or British Standard Pipe Parallel fitting, is a type of threaded connector used in plumbing and fluid systems. It adheres to the British threading standards (ISO 228-1), characterized by parallel threads. Unlike tapered threads, the parallel threads of a BSPP fitting do not create a seal on their own. Instead, they rely on the use of a sealing washer or other sealing methods to prevent leaks and ensure a tight connection. BSPP fittings come in various sizes and configurations, making them suitable for joining pipes, valves, and components in fluid systems. The standardized threading promotes compatibility and consistency, facilitating effective fluid transport and containment within the system.