Along with elbows, carbon steel pipe fittings additionally consist of tees, which connect 3 sections of pipe, creating joints for fluid circulation. Equal tees are used when the connecting branches are of the exact same size, while reducing tees are employed when the branch pipe is of a smaller size. https://imoodle.win/wiki/The_Role_of_Butt_Weld_Pipe_Fittings_in_HighPressure_Environments