3/8 inch x 1/4 inch Copper Reducing Coupling Copper x Copper

3/8 inch x 1/4 inch Copper Reducing Coupling – CxC Fitting for Size Transitions in Piping Systems

The 3/8 inch x 1/4 inch Copper Reducing Coupling is a solder-type fitting designed for transitioning between two different sizes of copper tube in water distribution or hydronic heating systems. Manufactured to strict tolerances, this coupling allows for secure, leak-resistant connections using lead-free solder and standard sweat fitting procedures.

This CxC reducing coupling is formed from wrought copper for high corrosion resistance and mechanical strength, supporting long-term reliability in regulated piping applications. It is suitable for use with both hard and soft copper tubing conforming to applicable ASTM standards.

Product Features

• ✅ Size Reduction Provides a seamless transition from 3/8 inch to 1/4 inch nominal copper tubing.
• ✅ Sweat (CxC) Connections Designed for use with soldered joints in hot and cold water distribution systems.
• ✅ Wrought Copper Construction Ensures uniform wall thickness, corrosion resistance, and thermal conductivity.
• ✅ Code Compliance Meets UPC, IPC, and NSF/ANSI 61 requirements for potable water applications.

Technical Specifications

• Connection Type: Copper x Copper (sweat ends)
• Nominal Sizes: 3/8 inch x 1/4 inch
• Material: Copper Alloy (lead-free, ASTM B75/B88 compliant)
• Standards: ASME B16.22 for wrought copper and copper alloy solder-joint pressure fittings
• Application: Potable water, hydronic heating, refrigeration lines, and general fluid handling

Common Applications

This reducing coupling is used in piping networks where a transition is required between differing tubing diameters. Typical applications include:

• Residential and commercial water supply lines
• Hydronic baseboard heating system transitions
• System branch downsizing for flow control or fixture adaptation

Installation Considerations

Ensure tubing is cut square, cleaned, and properly reamed before insertion. Use flux and lead-free solder to meet potable water codes. Apply uniform heating and allow full solder penetration for a pressure-tight joint. Allow adequate cooling before system pressurization.

Compliance Note

All copper fittings used in potable water systems must meet lead-free requirements under the Safe Drinking Water Act. This fitting is suitable for use in systems requiring NSF/ANSI 61 certification for health safety and performance.

The 3/8 inch x 1/4 inch Copper Reducing Coupling provides a compact and code-compliant solution for pipe size transitions in soldered copper systems. Its durability and standard conformance make it a trusted option for professional-grade mechanical installations.