Fittings are fixed in the plumbing system to join straight pipes or any section of tubes. They are used to manipulate the conveyance of water, gas, or liquid fluid in industrial projects, within a system of pipes or tubes. Water-supply fittings like elbow, tee, socket, reducer, etc., are fitted to change the direction of flow, distribute the water supply from the main pipe to other pipes of equal size or lower size. Fittings require money, time, materials, and tools to install and are an important part of piping and plumbing system. Therefore inspection of fittings is very important to release for installation of the pipelines.

ASME/ANSI B16 Standards to be followed during inspections.