Along with elbows, carbon steel pipe fittings additionally consist of tees, which attach three sections of pipe, developing junctions for liquid flow. Equal tees are used when the attaching branches are of the exact same size, while reducing tees are utilized when the branch pipe is of a smaller sized http://pandora.nla.gov.au/external.html?link=https://hfittings.com/differences-between-seamless-elbow-and-welded-elbow/