3 inch Copper Adapter Fitting x Male

3 inch Copper Male Adapter – C x MPT, Lead-Free Copper for DWV and Pressure Systems

The 3 inch Copper Male Adapter is a transition fitting designed to join a 3-inch nominal copper tube (cup connection) to a 3-inch nominal male NPT threaded fitting. Fabricated from lead-free wrought copper, this fitting is commonly used in drainage, waste, and vent (DWV) systems as well as select low-pressure water distribution applications where threaded transitions are required.

Manufactured to applicable ASME/ANSI and NSF/UPC standards, this adapter supports direct copper-to-threaded metal transitions and is suitable for use in residential, commercial, and institutional construction.

Performance and Material Specifications

• Material: Wrought copper, lead-free alloy compliant with ASTM B75/B88 and NSF 61/372
• Connection Type: C (solder cup) x MPT (male pipe thread)
• Nominal Size: 3 inches
• Applications: DWV, hydronic heating, and non-potable pressurized systems
• Pressure Rating: Dependent on joining method and system; follow applicable code guidelines

Installation Considerations

This fitting must be installed using approved soldering or brazing techniques on the copper end and threaded sealant or PTFE tape on the male thread. Over-torquing should be avoided to prevent damage to mating components. Ensure compatibility between dissimilar metals to prevent galvanic corrosion.

Typical Applications

• Drainage and vent terminations behind walls or in floor assemblies
• Mechanical connections to valves, pumps, and threaded steel components
• Service entrances or changes in piping material within distribution lines

Compliance

• Meets lead-free requirements of the Safe Drinking Water Act (SDWA)
• Conforms to ASME B16.22 and applicable UPC/IPC requirements
• NSF/ANSI 61 and 372 certified for use in potable water systems

The 3 inch Copper Male Adapter provides a dependable solution for copper-to-threaded transitions in DWV and low-pressure applications. Its precision-machined threads and solder cup connection ensure a professional-grade fit across a wide range of installations.