Tee for pipe fittings, pipe fittings. Also known as pipe fittings tee or tee tee, to be used in the main channel of the branch pipe. Tee is a three hole, namely an inlet and two outlet; or two imports a chemical one outlet pipe, there is a T-shaped and Y-shaped, with equal diameter nozzle, orifice diameter pipe also for three lines converge at the same or different. The main effect is to change the fluid tee direction.