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The NIBCO INC W01270D is a 1-inch copper-by-male (CxM) adapter fitting designed to transition a solder connection to a threaded connection. The fitting features a solder cup end that accepts a standard 1-inch copper tube and a male NPT threaded end for connecting to threaded pipe or fittings. Constructed to lead-free standards, the W01270D suits potable water systems where compliance with lead-free requirements is mandatory. Plumbers and pipefitters install this adapter during new construction, retrofit, and repair work wherever a sweat connection must terminate at a threaded fitting.
This adapter is used in residential and light commercial plumbing systems. It is a standard solution for connecting copper water distribution lines to threaded valves, manifolds, and equipment inlets. The CxM configuration is common in supply line terminations and at equipment connections where a copper run ends at a threaded port. The fitting ships in packages of 15 units, making it practical for service vans and job-site stock.
Designed as an OEM-style replacement and standard-use fitting for 1-inch copper sweat-to-male-NPT transition points in residential and commercial plumbing systems.
A licensed plumber or qualified pipefitter should install this fitting in accordance with applicable IPC or local plumbing code requirements. Shut off and drain the water supply before soldering. Clean and flux both the copper tube and the solder cup end before applying heat. Allow the joint to cool fully before pressurizing the system and applying thread sealant or tape to the male NPT threads.
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