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The ASC Engineered Solutions 810087411 is a black malleable iron reducing coupling designed to connect piping of two different diameters in threaded pipe systems. With a 1-inch by 1/4-inch configuration, this fitting steps down the pipe size within a run, allowing trades to transition between line sizes without additional adapters. The black coating provides corrosion resistance suited to standard gas, air, and compatible fluid distribution systems. Licensed plumbers, pipefitters, and HVAC technicians typically install this type of fitting during rough-in or system modification work.
This reducing coupling is used in residential and light commercial piping applications where a threaded iron pipe system requires a diameter reduction. Common install scenarios include gas distribution lines, compressed air systems, and general mechanical piping where malleable iron fittings are specified. The 1-inch inlet and 1/4-inch outlet make it well suited for branch takeoffs or instrumentation connections on larger pipe runs.
Designed as an OEM-style replacement or standard replacement fitting for threaded malleable iron pipe systems requiring a 1-inch by 1/4-inch reducing coupling connection.
Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician in accordance with applicable local mechanical and plumbing codes, including IFGC and IPC where relevant. Shut off all pressure to the line and verify zero pressure before removing or installing threaded fittings. Apply appropriate thread sealant or tape to all threaded connections before assembly. Do not overtighten, as malleable iron threads can be damaged by excessive torque.
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