Along with elbows, carbon steel pipe fittings likewise include tees, which link 3 areas of pipe, creating junctions for liquid flow. Equal tees are made use of when the attaching branches are of the same diameter, while reducing tees are utilized when the branch pipe is of a smaller size. https://kunmingts.com/flange-types-understanding-the-functionality-and-applications-of-so-wn-and-bl-flanges/