Haihao Group Ships ASME B16.9 Eccentric Reducer in SA-860 WPHY-65 to Indonesia

Haihao Group has completed the production and shipment of a large-diameter ASME B16.9 eccentric reducer for an Indonesian customer. The order includes a 20″ × 16″ eccentric reducer manufactured from SA-860 WPHY-65 with SCH40 wall thickness.

For large-diameter piping systems, reducer selection is not only about changing pipe size. The reducer geometry also affects drainage, flow direction, equipment connection and the overall arrangement of the pipeline. For applications where the centerlines of two connected pipes need to remain offset, an eccentric reducer can provide a practical solution while maintaining a compact piping layout.

20″ × 16″ Eccentric Reducer for the Indonesian Project

The supplied component is designed to connect a 20-inch pipeline to a 16-inch pipeline. Its eccentric configuration provides an offset transition between the two pipe diameters rather than reducing the pipe concentrically.

The order specification is:

The combination of a large 20-inch inlet, 16-inch outlet and SCH40 wall thickness makes this ASME B16.9 eccentric reducer suitable for demanding process and pipeline applications where controlled size reduction and proper pipe alignment are important.

Why Use an Eccentric Reducer?

An eccentric reducer has its two ends positioned with an offset centerline. This differs from a concentric reducer, where both pipe centerlines remain aligned.

The offset design is particularly useful when the piping arrangement requires one side of the pipeline to remain relatively level. Depending on the orientation and service conditions, this can help reduce unwanted pockets in horizontal piping and provide better compatibility with connected equipment.

For engineers selecting an ASME B16.9 eccentric reducer, the orientation of the reducer is therefore an important consideration. The installation direction should be determined according to the process medium, drainage requirements, pump or equipment connection and the overall piping design.

In large-diameter systems, these details become increasingly important because even a relatively small change in elevation or alignment can affect installation space and downstream connections.

ASME B16.9 eccentric reducer SA 860 WPHY 65 manufactured by Haihao Group

SA-860 WPHY-65 Material for High-Strength Piping

This Indonesian order uses SA-860 WPHY-65, a high-yield-strength wrought fitting material commonly selected for high-strength pipeline applications.

The material specification is an important part of this ASME B16.9 eccentric reducer order because the fitting must be compatible with the mechanical and service requirements of the connected piping system. Material traceability, dimensional control and inspection records are therefore handled as part of the manufacturing process.

For customers purchasing high-strength carbon steel fittings, Haihao Group can organize production according to specified material grades, dimensions, wall thicknesses and applicable standards. The material documentation can also be prepared to support project quality control and traceability requirements.

Manufacturing Focus on Large-Diameter Fittings

Producing a 20″ × 16″ fitting requires careful control of the forming geometry and finished dimensions. For an eccentric reducer, the offset transition must be maintained consistently so that the fitting can be installed correctly with the adjoining pipe.

During production, Haihao Group focuses on key dimensional requirements such as:

Large-end and small-end outside dimensions

Wall thickness and SCH40 requirements

Overall fitting geometry

Eccentricity and transition profile

End preparation for welding

Surface condition

Material identification and traceability

Final dimensional inspection

These controls are especially relevant for an ASME B16.9 eccentric reducer because dimensional deviations can create difficulties during field fit-up, particularly in large-diameter piping systems.

Haihao Group manufactures and supplies a broad range of butt-welding fittings, including eccentric reducers, concentric reducers, elbows, tees and other customized configurations. Orders can be produced according to project drawings and applicable international standards.

If your project requires a large-diameter eccentric reducer or other butt-welding fittings, Haihao Group can review your specifications and provide a suitable manufacturing solution based on the required size, material, schedule and standard.

Need an eccentric reducer for your next pipeline project? Send Haihao Group your size, material, schedule and standard requirements for a technical quotation.