Plumbing installation elbow is a common connection with fittings for connecting pipes at the corner, used to change the direction of the pipe. Other names: 90 ° elbow, right angle bend, bend love, stamping elbow, pressing elbow, elbow mechanism, welding elbow. Purpose: to connect two of the same or different nominal diameter pipe, so that the pipe for 90 °, 45 °, 180 ° and various degrees of turn. Bending radius less than or equal to 1.5 times the diameter of belonging to elbow, is greater than 1.5 times the diameter belong elbow.