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The BMI USA 35147 is a black malleable iron hex pipe bushing designed to reduce a larger threaded pipe opening to a smaller one. Hex bushings thread into a fitting or pipe and accept a smaller male-threaded pipe or fitting on the opposite end, making them a standard component in threaded piping assemblies. This bushing features a 2.5-inch female thread and a 1.5-inch male thread, with a black finish applied over the malleable iron body. It is suitable for use in gas, steam, and water piping systems where threaded connections are required. Licensed plumbers and pipefitters install this type of fitting during rough-in and system assembly work.
Hex pipe bushings in this size range are commonly used in residential and light commercial plumbing, HVAC, and gas distribution applications. The hexagonal shoulder allows standard pipe wrenches and adjustable wrenches to seat properly, supporting correct torque application during installation. The 2.5 x 1.5 inch thread reduction is a frequently specified transition size in supply piping, boiler piping, and gas appliance rough-in work.
Designed as an OEM-style replacement or standard-stock threaded pipe fitting for use in malleable iron piping systems with NPT-threaded connections.
Installation is performed by licensed plumbers or pipefitters following applicable code requirements such as the IPC or IFGC. Shut off the relevant gas or water supply and depressurize the system before beginning work. Apply appropriate thread sealant or tape to the male threads before installation, and tighten using a pipe wrench seated on the hex shoulder. Do not over-tighten, as malleable iron threads can be damaged by excessive force.
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