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The ASC Engineered Solutions 810089805 is a black malleable iron reducing coupling designed for threaded pipe connections in commercial and residential piping systems. This coupling reduces from a 2-inch female thread to a 1/2-inch female thread, allowing technicians to step down pipe sizes within a run without additional fittings. The black oxide coating provides corrosion resistance suited for dry indoor piping applications including gas distribution, compressed air, and black iron pipe systems. Licensed plumbers, pipefitters, and HVAC technicians install this type of fitting in both new construction and retrofit work.
This reducing coupling is used in black iron pipe assemblies typical of gas supply lines, industrial air distribution, and fire suppression rough-in work. The malleable iron construction provides the ductility and thread engagement strength required for pressurized service. It is appropriate for residential and light commercial applications where a threaded reducing connection between a 2-inch and 1/2-inch pipe run is required.
Designed as an OEM-style replacement or standard-stock fitting for threaded black iron pipe systems using 2-inch to 1/2-inch reducing connections.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Apply appropriate thread sealant or PTFE tape to all male threads before assembly. Ensure the upstream pipe and any connected gas or pressure supply is fully shut off before installing or replacing the fitting. Do not over-tighten; use a pipe wrench sized for the fitting to achieve proper thread engagement without cracking the casting.
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