A Coupling Fitting is a pipe component used to connect two pipes in a straight line.It provides a secure joint and allows fluid or gas to flow continuously between the pipes.Couplings can be welded, threaded, or slip-on depending on the piping system.They are commonly used in water, oil, gas, and chemical pipelines.Coupling fittings help in extending pipe runs or repairing broken sections of piping.They are essential components in almost all piping systems for joining pipes efficiently.