Types of pe fitting in Plumbing System Different pe fitting and their functions are explained below. ElbowReducerTee typeCross typeCouplingUnionsAdaptorsOletPlugCapValve Elbow pe fitting Elbows are used to change the direction of flow between two pipes. Elbows are generally available with an angle of 22.5, 45 and 90. If pipes are of same diameter, normal elbows are used; otherwise reducer...