Concentric Reducer Dimensions Definition: A Concentric Reducer is a symmetrical fitting where the centerline of the pipe remains constant across the reducer. It is used to connect pipes of different diameters while maintaining a consistent centerline. Key Dimensional Information: Large End Outer Diameter (D1): Matches the larger pipe size. Small End Outer Diameter (D2): Matches the smaller pipe size. Reducer Length (L): Distance between the larger and smaller ends. Wall Thickness (T): Defined by pipe schedule for both ends. Concentric reducers are typically used in vertical piping systems or when the flow path is straight, preventing turbulence. Eccentric Reducer Dimensions Definition: An Eccentric Reducer is a non-symmetrical fitting where one edge is aligned, keeping the reducer flat on one side. It is used to connect pipes of different diameters while ensuring the alignment of the bottom or top of the pipe. Key Dimensional Information: Large End Outer Diameter (D1): Matches the larger pipe size. Small End Outer Diameter (D2): Matches the smaller pipe size. Reducer Length (L): The distance between the larger and smaller ends. Flat Side: Ensures alignment with one side of the pipe, preventing air pockets in horizontal pipelines. Eccentric reducers are commonly used in horizontal piping systems, especially for pump suction lines, to prevent cavitation or air accumulation. General Notes Dimensions for reducers are standardized according to ASME B16.9, MSS-SP 43, or similar norms. Sizes range from 1/2" to large diameters depending on the pipeline application. Custom reducers can be manufactured for specialized applications.