Mueller W04048 1-1/8" Tee

The Mueller W04048 1-1/8" Tee is a high-performance wrot copper pressure fitting engineered for demanding HVACR and plumbing applications. This CxCxC copper tee features a 1-1/8 inch outside diameter (OD) on all three branches, providing a seamless 1-inch nominal connection point for distributing fluid or refrigerant flow. Built from UNS C12200 copper alloy, the fitting is optimized for both soldering and brazing, ensuring reliable subterranean or above-ground joints. It maintains a pressure rating of 700 PSI and a temperature threshold of 250°F, making it a staple for refrigerant line sets and potable water systems. This wrought copper solder-joint fitting meets rigorous ASME B16.22 and NSF/ANSI 61 standards for lead-free compliance and structural integrity. For veteran contractors, the precision-machined "cups" guarantee a consistent capillary action during the sweating process, reducing the risk of leaks in high-vibration mechanical environments.

Key Benefits

• Maximum Durability: Constructed from high-grade wrot copper to resist corrosion and handle high-pressure refrigerant cycles.
• Industry Compliance: Fully meets ASME B16.22 dimensions and NSF 61G lead-free requirements for residential and commercial use.
• Optimized Flow: The smooth interior surface minimizes pressure drop and turbulence within the piping system.
• Versatile Joining: Designed for compatibility with various soldering and brazing alloys for secure, permanent connections.

Common Questions

Can the Mueller W04048 be used with R-410A refrigerant?
Yes, this fitting’s 700 PSI pressure rating makes it suitable for the high operating pressures of R-410A systems, provided proper brazing techniques are followed.

Is this tee compatible with Type K, L, and M copper tubing?
Actually, it is specifically designed to transition and branch 1-1/8" OD tubing, which corresponds to 1" nominal Type K, L, or M copper water tube and ACR tubing.

What is the difference between wrot and cast copper tees for HVACR?
Wrot (wrought) copper fittings like the W04048 are typically preferred for refrigeration because they are smoother, thinner (lighter), and more consistent in material density than cast bronze alternatives.

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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.