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The ASC ENGINEERED SOLUTIONS 318912045 is a black cast iron flush bushing designed to reduce pipe thread connections from a 2.5-inch fitting to a 2-inch fitting in a flush-style configuration. This type of bushing sits flush within the fitting socket rather than protruding, making it well suited for tight spaces and close-clearance pipe assemblies. Weighing 0.40 pounds and sized at 2.5 inches by 2 inches, it is a standard component used by licensed plumbers and pipefitters in a variety of piping systems. The black coating provides corrosion resistance appropriate for drainage, waste, and vent applications as well as certain industrial piping runs.
This flush bushing is typically installed in residential and commercial plumbing systems where a concentric pipe size reduction is needed at a threaded connection point. It is used in drain, waste, and vent piping configurations as well as in gas piping and industrial pipe assemblies where black cast iron fittings are required by code or specification. Installation is performed by a licensed plumber or pipefitter following applicable IPC or IFGC requirements.
Designed as an OEM-style replacement or new-installation fitting for threaded black cast iron pipe assemblies requiring a 2.5-inch to 2-inch concentric reduction.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing or mechanical codes. Shut off the water supply or gas service, as applicable, before working on any threaded pipe connection. Apply appropriate thread sealant or pipe tape to threaded joints per code requirements. Do not overtighten threaded cast iron fittings, as the material is not ductile and can crack under excessive torque.
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