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The ASC Engineered Solutions 810084806 is a black malleable iron reducing coupling designed to connect male pipe threads of two different sizes in threaded piping systems. At 1/4 inch by 1/8 inch, this fitting steps down from a 1/4-inch line to a 1/8-inch connection, making it a common component in low-pressure gas, air, and plumbing distribution lines. The black oxide coating provides corrosion resistance suitable for dry and moderate-moisture environments. Plumbers, pipefitters, and mechanical contractors install this type of fitting when reconfiguring branch lines or adapting existing pipe runs to smaller-diameter connections.
This reducing coupling is suited for residential and light commercial piping applications where malleable iron threaded fittings are specified. Typical uses include natural gas distribution, compressed air systems, and water service lines where a transition from 1/4-inch to 1/8-inch threaded pipe is required. The black finish distinguishes it from galvanized fittings and indicates it is not intended for potable water service in most jurisdictions. Always verify local code requirements for the intended application.
Designed as an OEM-style replacement or new-installation fitting compatible with standard NPT threaded pipe systems requiring a 1/4-inch by 1/8-inch malleable iron reducing coupling.
This fitting is installed by licensed plumbers or pipefitters following applicable codes such as the IPC or IFGC depending on the service medium. Shut off and depressurize the pipe system completely before removing or installing any threaded fittings. Apply thread sealant or PTFE tape appropriate for the service medium to all male threads before assembly. Do not overtighten malleable iron fittings, as the material can crack under excessive torque.
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