Description: Color:Grey 40mm Inner Diameter PVC Pressure Pipe Fittings. Socke,elbow,Tee,Ball Valve,Reducing bush,etc. Fittings sizes refers to the outside diameter of the pipe. Pipe always goes inside fittings, fittings are named after the pipe. Spigots and bushes go inside a fitting. Our Pipe is made of PVC. Plain/Solvent Weld PVC Pipe Fittings are designed with female socket connections for sliding over the ends of unthreaded male pipes. Can be fitted together dry or sealed in liquid with a solvent cement/Solvent Weld Glue, for use with liquid.BSP Threaded fittings are threaded together using PTFE tape.. Use with the same colour fittings, also compatible with other colours PVC Pipe and Fittings.. Application: PVC Pipe and Fittings are suited to many applications. They are probably the mo