Mueller Industries W 01231 Copper Pipe Adapter 1/2 in

Product Description

The MUELLER INDUSTRIES W 01231 is a wrot copper pipe adapter designed for sweat-style plumbing connections in residential and commercial systems. This fitting transitions between a copper-to-copper (C) male end and a female threaded (F) end using a solder joint connection. With a fitting size of 1/2 inch and an outside diameter of 5/8 x 1/2 inch, it is a standard component for connecting copper water lines to threaded fittings or valves. The wrot copper construction provides reliable pressure performance and meets multiple ASME and NSF standards. It is installed by licensed plumbers and pipefitters during new construction, retrofit, and repair work.

This adapter is suited for potable water supply lines, hydronic heating systems, and general plumbing distribution where a copper-to-female-threaded transition is needed. The C x F configuration makes it a common choice when connecting copper tubing to threaded fixtures, valves, or equipment ports. It is applicable in both above-ground and in-wall plumbing assemblies where a soldered joint is specified or preferred over mechanical connections.

Key Features

• Wrot copper construction for durability and corrosion resistance in water systems
• C x F end connection — copper sweat inlet to female threaded outlet
• 1/2 inch fitting size with 5/8 x 1/2 inch outside diameter
• Solder joint style for a permanent, leak-resistant connection
• Meets ASME B16.22, ASME B16.18, ASME B16.15, ASME B1.20.1, ASME B16.24, ASME B16.50, and NSF 61G standards

Compatibility

Designed as an OEM-style replacement and standard fitting for 1/2 inch copper plumbing systems using sweat-to-female-threaded transitions in residential and commercial applications.

Installation Notes

Installation is performed by a licensed plumber following applicable IPC or local plumbing code requirements. Shut off the water supply and fully drain the line before soldering. Clean and flux all mating surfaces before applying heat to ensure a proper solder bond. Do not apply heat to the fitting while any plastic components, insulation, or flammable materials are in close proximity.