1/2 inch x 3/8 inch Brass Reducing Coupling Female x Female

1/2 inch x 3/8 inch Lead-Free Brass Reducing Coupling – Sweat x Sweat Connection

This 1/2 inch x 3/8 inch reducing coupling is manufactured from lead-free brass and designed for use in soldered copper tube systems. The fitting provides a smooth, corrosion-resistant transition between different nominal tube sizes, making it ideal for water distribution lines requiring code-compliant components.

Fabricated in accordance with ANSI/ASME B16.22 and certified to NSF/ANSI 61 and 372 for use in potable water systems, this coupling delivers consistent joint quality and long-term performance in high-temperature and pressure-rated environments.

Technical Features

• Material: Lead-free brass (compliant with NSF/ANSI 372)
• Connection Type: C x C (sweat/solder)
• Nominal Sizes: 1/2 inch inlet x 3/8 inch outlet
• Compliance: Meets ASTM B584 and ASME B16.22 specifications
• Temperature Rating: Up to 400°F for soldered connections (depending on system design)

Application and Use

This reducing coupling is suitable for use in hot and cold potable water systems, hydronic heating loops, and closed-loop plumbing applications. It is frequently used in branch takeoffs and system retrofits where downsizing between copper tube diameters is required.

Installation Guidelines

• Deburr and clean both tube ends before insertion.
• Use appropriate lead-free solder and flux as required by local plumbing codes.
• Apply heat evenly around the joint to ensure full solder flow and capillary bonding.

Advantages for Commercial and Residential Systems

• Uniform wall thickness and machined ends provide repeatable joint integrity.
• Lead-free alloy ensures compliance with Safe Drinking Water Act (SDWA) requirements.
• High pressure and thermal resistance suited for long service life in concealed or exposed locations.

Note:

This coupling is not designed for use with threaded pipe or press-fit systems. It is specifically intended for soldered copper tube connections only.

The 1/2 inch x 3/8 inch brass reducing coupling offers a code-approved, durable solution for copper-to-copper transitions in modern plumbing layouts where space, performance, and reliability are critical.