The Mueller W01003 1/4" Coupling is a professional-grade wrot copper fitting engineered for high-pressure HVACR and potable water applications. This C x C solder joint component features a precision-machined rolled stop, ensuring accurate tube insertion and consistent flow characteristics across the joint. Designed to meet rigorous ASME B16.22 and NSF 61G standards, it provides a reliable, leak-proof copper-to-copper connection capable of withstanding operating pressures up to 700 PSI at 250°F. As a veteran technician knows, the integrity of a 1/4" OD line depends on the quality of the brazing-ready surface; the W01003 delivers superior capillary action for seamless solder distribution. Whether you are performing a field repair on a refrigeration rack or installing a residential split system, this Streamline copper coupling offers the corrosion resistance and thermal conductivity required for long-term system stability. Incorporating this 1/4 inch copper pipe connector into your assembly ensures compliance with commercial mechanical codes and maintains the structural integrity of the fluid path. Key Benefits Precision Rolled Stop: Guarantees exact tube seating to prevent over-insertion and maintain optimal flow dynamics. High-Pressure Rating: Field-tested for 700 PSI performance, making it suitable for modern high-pressure refrigerants. Code Compliance: Manufactured to ASME B16.15/B16.18/B16.22 and NSF 61G lead-free requirements for potable water and HVACR use. Superior Material Integrity: Constructed from UNS C12200 wrot copper for maximum corrosion resistance and easy solderability. Compact Profile: At a 1.38-inch length, it fits easily into tight service ports and restricted equipment cabinets. Common Questions Is the Mueller W01003 compatible with R-410A systems? Yes, its 700 PSI pressure rating at 250°F makes it fully compatible with high-pressure HVACR applications, including R-410A liquid and suction lines when proper brazing techniques are followed. Can this coupling be used for both soft and hard copper tubing? Absolutely. This 1/4" CxC coupling is designed to provide a secure solder joint for both types of copper tubing, provided the ends are properly deburred and cleaned. Does this fitting require a specific type of flux? Standard industry-grade flux compatible with ASTM B813 is recommended to ensure a clean, oxide-free surface for high-strength brazing or soldering. 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.
