3/4 inch Copper Union Copper x Male

3/4 inch Copper Union – Built for Professional-Grade Connections

The 3/4 inch Copper Union provides a durable and code-compliant method for joining copper tubing in residential and commercial systems. Designed for use in applications requiring routine maintenance or system disassembly, this union allows for easy separation of pipe sections without cutting, making it an essential fitting in both new and retrofit installations.

Fabricated from lead-free wrought copper and brass components, this union meets ANSI/ASME B16.22 and NSF/ANSI 61/372 standards for potable water systems. The fitting is designed to minimize joint stress and enable system flexibility, while ensuring secure, pressure-rated performance under normal operating conditions.

Key Features

• Material: Lead-free copper alloy components, compliant with Safe Drinking Water Act (SDWA)
• Connection Type: Solder (C x C or C x MNPT, depending on configuration)
• Nominal Size: 3/4 inch
• Pressure Rating: 200 PSI maximum operating pressure at 100°F (varies with system type)
• Temperature Rating: Up to 400°F when properly soldered with compatible alloy

Common Applications

• Hot and cold potable water systems
• Hydronic heating loops
• Water heater connections and isolation points
• Mechanical room or service area plumbing requiring disassembly

Installation Notes

Installation requires proper surface preparation, flux application, and soldering with an approved alloy. Unions should not be used in concealed spaces unless approved by local code. When used with threaded connections, apply thread sealant suitable for potable water systems. Always torque the union nut appropriately to avoid thread damage or misalignment.

Contractor Insights

• Use unions at termination points or isolation zones to speed up service intervals.
• Maintain alignment between pipe sections during installation to reduce mechanical stress on the joint.

The 3/4 inch Copper Union is a proven, durable fitting that facilitates clean system transitions and efficient serviceability. Whether installed on copper supply risers or service valves, this union delivers reliable performance and ease of access for ongoing system maintenance.