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The ASC ENGINEERED SOLUTIONS 310089206 is a black malleable iron reducing coupling used to connect pipe runs of two different diameters in a single inline fitting. At 2 inches by 1-1/4 inches, it steps down the line without requiring an offset or union. The black coating is standard for gas distribution and certain industrial piping systems. Weighing 1.53 pounds, this domestically produced fitting suits professional installations where code compliance and material consistency are required. Plumbers, pipefitters, and mechanical contractors reach for malleable iron couplings when a durable, threaded reduction is needed in a high-demand piping assembly.
This reducing coupling is suited for residential and commercial piping applications where a threaded inline size reduction is required. Common install scenarios include natural gas supply lines, propane distribution, steam systems, and air lines where the pipe diameter changes between sections of the run. The 2-inch by 1-1/4-inch size combination covers a frequently encountered reduction in mechanical room and distribution piping work.
Designed as an OEM-style threaded replacement or new-installation fitting for 2-inch to 1-1/4-inch NPT piping systems in gas, steam, air, or industrial fluid distribution applications.
This fitting is installed by licensed plumbers, pipefitters, or mechanical contractors following applicable code requirements including IFGC and IPC where relevant. Shut off and depressurize the piping system completely before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape rated for the service medium to all male threads before assembly. Do not use this fitting beyond its rated material and coating specifications for the intended service type.
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