Mueller W01023 5/8 x 1/2 Coupling

The Mueller W01023 is a precision-engineered copper reducing coupling designed for professionals requiring reliable transitions in high-pressure HVACR and plumbing systems. This 5/8 x 1/2 CxC (Copper-to-Copper) fitting is manufactured from high-grade wrot copper (UNS C12200), ensuring exceptional corrosion resistance and thermal conductivity. Built to meet rigorous industry standards, including ASME B16.22 and ASTM B75, this coupling handles a working pressure of up to 700 PSI at temperatures reaching 250°F. The seamless construction and smooth internal surface minimize pressure drop and prevent sediment buildup, making it ideal for refrigerant lines, potable water systems, and hydronic heating loops. As a Streamline product, the W01023 provides the dimensional accuracy needed for tight solder joints in both residential and light commercial refrigeration applications. Its lead-free composition also ensures full compliance with NSF 61 and NSF 372 standards for safe water delivery.

• Heavy-Duty Construction: Made from 99.9% pure wrot copper for maximum durability in pressurized HVACR environments.
• High Pressure/Temperature Rating: Verified for performance up to 700 PSI, making it suitable for modern high-pressure refrigerants.
• Precision Fit: Wrot copper dimensions ensure consistent solder cup depth for secure, leak-free CxC connections.
• Code Compliance: Meets ASME B16.22, MSS SP104, and is NSF 61G certified for potable water and mechanical use.
• Versatile Application: Engineered for seamless use across air conditioning, refrigeration, and hydronic piping systems.

What are the actual OD dimensions for this fitting?
The Mueller W01023 is designed for 5/8" OD and 1/2" OD tubing, typically referred to in nominal plumbing sizes as 1/2" x 3/8" or 5/8" x 1/2" depending on the industry application (ACR vs. Plumbing).

Is this coupling suitable for brazing in refrigeration systems?
Yes, the wrot copper material is compatible with standard brazing alloys and techniques used in refrigerant line installations.

Can this be used for underground installations?
Yes, per ASTM B88 and related standards, wrot copper fittings of this grade are suitable for both above and below-ground pressurized systems.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.