Mueller Industries W01029 Coupling

The Mueller Industries W01029 is a job-ready WC-400R reducing coupling engineered for high-pressure HVACR and plumbing applications. This wrot copper fitting features a 3/4" OD x 5/8" OD (equivalent to 5/8" ID x 1/2" ID) sweat connection, allowing for seamless transitions between varying line sizes. Constructed from premium UNS C12200 grade copper, this solder-joint coupling is built to withstand rigorous operating conditions, supporting a 700 psi pressure rating and temperatures up to 250°F.

For contractors focusing on system integrity, the Streamline® series ensures consistent wall thickness and tight tolerances, adhering to ASME B16.22 and MSS SP-104 standards. Whether used in residential liquid lines or commercial suction lines, this 3/4 x 5/8 copper reducer provides the mechanical strength required for both ASTM B88 water tube and ASTM B280 ACR tube. Its lead-free, NSF/ANSI 61 compliant design also makes it suitable for potable water systems.

• Industrial Strength: Rated for up to 700 psi, making it ideal for modern high-pressure refrigerants.
• Precision Tolerance: Manufactured to meet ASME B16.22 specifications for reliable, leak-free solder joints.
• Durable Material: Wrot copper construction offers superior thermal conductivity and corrosion resistance.
• Versatile Application: Suitable for both AC refrigeration lines and potable water supply systems.
• Standards Compliant: Meets MSS SP-104 and NSF 61G for wide-ranging project approval.

Is this fitting compatible with brazing?
Yes, while designed as a solder-joint fitting, the high-grade wrot copper construction is fully compatible with standard brazing alloys used in HVACR applications.

Can this be used for R410A systems?
Yes, with a 700 psi rating at 250°F, it meets the pressure requirements for R410A and other high-pressure refrigerant cycles.

What is the difference between OD and nominal sizing for this part?
In HVACR, it is measured as 3/4" x 5/8" OD. In plumbing, it is referred to by its nominal 5/8" x 1/2" ID size. Both refer to the same W01029 part.

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.