Reduced Diameter Fitting, also known as a reducing elbow. A type of pipeline fitting used to connect two pipes of different diameters. It is further categorized into concentric reducing elbows and eccentric reducing elbows. See pipeline fittings.
Pipe fittings materials include stainless steel reducers, alloy steel, carbon steel reducers with different diameters, and 20# steel reducers such as q234q345.
