Also known as reducing elbows. A type of pipeline fitting used to connect two pipes of different diameters. Divided into concentric reducing elbows and eccentric reducing elbows. See pipeline fittings.

eccentric reducing coupling (eccentric reducer)

Eccentric Reducer (Reduced Diameter Fitting)

Pipe fittings materials include stainless steel reducers, alloy steel, carbon steel reducers in sizes, and reducers in 20# steel grades q234, q345, etc.