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The MUELLER INDUSTRIES BDNA-15658 is a wrot copper pipe adapter designed to connect a 1-inch copper sweat (C) end to a 1/2-inch female threaded (F) end. Wrot copper construction provides reliable performance in potable water, hydronic heating, and general plumbing distribution systems. With an outside diameter of 1-1/8 inches on the sweat end and a 1/2-inch female threaded outlet, this adapter is suited for reducing or transitioning between copper tubing and threaded pipe connections. Licensed plumbers and pipefitters install this fitting in both residential and light commercial applications.
This adapter is used where a copper sweat connection must transition to a female NPT threaded fitting. Common scenarios include connecting copper supply lines to threaded valves, fixtures, or equipment inlets. The C x F configuration makes it a standard fitting in plumbing rough-in work, hydronic systems, and mechanical room piping. It is sold individually and is appropriate for use wherever reducing adapters are required in copper piping systems.
Designed as an OEM-style replacement or direct-use fitting for copper plumbing systems requiring a sweat-to-female-thread transition in 1-inch by 1/2-inch reducing configurations.
Installation is performed by a licensed plumber following applicable IPC or local plumbing code requirements. Shut off and depressurize the water supply before soldering. Clean and flux all mating surfaces before applying heat, and allow the joint to cool fully before restoring pressure. Do not overtighten the threaded female connection to avoid cracking fittings or damaging threads.
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