What does BSP mean in BRITISH

BSP fittings are a type of pipe fitting that use BSW threading to connect two pipes or components of different sizes. These can include both taper and parallel threads, and typically come in galvanized steel, stainless steel, brass or copper.

BSP fittings are a reliable way to make connections between different types of pipes and components without having to resort to welding or other forms of permanent joining methods. They're also capable of withstanding higher pressures than other pipe connecting methods such as compression joints.

Yes, there are several key differences between British Standard Pipe (BSP) threads found on BSW fittings and National Pipe Taper (NPT) threads found on American-made fittings. For example, NPT has a 60° angle while BSW has 55° angles, creating a tighter seal when used with compatible parts.

To measure the outside diameter (OD) of a piece of BSP piping accurately, use an outside caliper or Vernier caliper rather than attempting to measure it by eye. Measure at least twice around the circumference to ensure accuracy before cutting or ordering new pipe pieces.

Generally speaking, the pressure rating for a standard length of unthreaded galvanized steel BSW piping is 18 bar or 254 psi at room temperature depending on the size of the pipe being used. However this will vary across different materials such as stainless steel or brass so it's important to check carefully before use.