Merit Brass 01413-8048 Eccentric Reducer 5x3 in 304L Ss Sch 10

Product Description

The MERIT BRASS 01413-8048 is a 5 x 3 inch eccentric reducer fitting manufactured from 304L stainless steel. It connects two pipes of different diameters using butt weld end connections on both ends, maintaining a flat side along one axis to keep the pipe bottom level — a critical feature in drainage and process piping where consistent flow gradient is required. Built to Schedule 10 wall thickness, this fitting is suited for moderate-pressure industrial and commercial piping systems. It is typically installed by certified pipe welders or journeyman plumbers working on stainless steel process lines, HVAC chilled water systems, or sanitary installations.

This eccentric reducer is designed for use in commercial and industrial piping applications where a transition from a 5 inch pipe to a 3 inch pipe is required while maintaining a single flat reference plane. Common install scenarios include pump suction lines — where the eccentric profile prevents air pocket formation — as well as food and beverage processing lines, pharmaceutical process piping, and mechanical room headers. The 304L low-carbon grade minimizes sensitization risk in welded assemblies, making it appropriate for corrosive or high-purity fluid service environments.

Key Features

• Eccentric profile maintains flat bottom alignment for gravity-flow and pump suction applications
• 304L stainless steel low-carbon grade reduces carbide precipitation risk at weld heat-affected zones
• Butt weld x butt weld end connections on both ends for full-penetration welded joints
• Schedule 10 wall thickness suitable for moderate-pressure commercial and industrial service
• 5 x 3 inch size handles significant diameter transitions in header and branch piping layouts

Compatibility

Designed as an OEM-style butt weld eccentric reducer for Schedule 10 stainless steel piping systems requiring a 5 x 3 inch diameter transition.

Installation Notes

This fitting requires butt weld installation by a qualified welder following applicable codes such as ASME B31.3 for process piping or ASME B31.9 for building services piping. Purge the pipe interior with inert gas during welding to protect the stainless steel weld zone from oxidation. Depressurize and isolate the piping system completely before cutting in the fitting. Verify the eccentric flat orientation relative to the flow direction and pipe support layout before tacking in place.