Mueller W02747 Elbow

The Mueller W02747 is a professional-grade 1-1/8" OD Long Radius 90 Degree Elbow engineered for high-demand HVACR and pressurized plumbing environments. As a veteran-preferred wrought copper fitting, the W02747 is designed with a long radius profile to minimize internal turbulence and pressure drop, which is essential for maintaining optimal flow rates in modern high-efficiency systems. This sweat connection elbow (C x C) provides a reliable, permanent solder joint that is UL Recognized to handle a continuous operating pressure of up to 700 PSI at temperatures reaching 250°F.

Manufactured in the USA, this 1-inch nominal copper elbow meets strict ASME B16.22 and MSS SP104 standards, ensuring consistent wall thickness and metallurgical integrity for nitrogen-purged brazing. Whether you are running refrigerant lines for a commercial split system or installing potable water supply lines, the Mueller Streamline W02747 provides the corrosion resistance and structural durability required for above-ground piping. Its lead-free construction and NSF 61-G certification make it a versatile component for both mechanical refrigeration and high-purity water applications.

• Reduced Flow Resistance: The long radius 90-degree design facilitates smoother fluid transition compared to standard elbows, protecting sensitive compressors and valves from excessive head pressure.
• High Pressure Performance: Engineered for refrigeration and air conditioning (ACR) demands, supporting high-pressure refrigerants like R-410A with a 700 PSI rating.
• Superior Material Quality: Constructed from UNS C12200 wrought copper, providing excellent thermal conductivity and seamless solderability for leak-free installations.
• Industry Compliance: Fully compliant with ASTM B75 and ASME standards, ensuring compatibility with standard 1-1/8 inch OD copper tubing.

• What is the difference between 1-1/8" OD and 1" ID for this fitting? In the HVACR industry, fittings are typically sized by the Outside Diameter (OD), which is 1-1/8". In standard plumbing, this corresponds to the 1-inch nominal (ID) pipe size.
• Can this elbow be used for brazing? Yes, this wrought copper fitting is designed for both soft soldering and high-temperature brazing procedures used in refrigeration cycles.
• Why choose a long radius over a short radius elbow? The long radius provides a more gradual turn, which significantly reduces friction loss and noise in high-velocity gas lines.

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.