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The ASC ENGINEERED SOLUTIONS 318908167 is a black cast iron hex bushing designed to reduce a 2.5-inch female pipe thread to a 0.75-inch male pipe thread. Cast iron construction with a black coating makes this bushing well suited for low-pressure gas, water, and steam piping systems where durability and corrosion resistance are priorities. The hex profile allows for standard wrench engagement during installation and removal. Licensed plumbers and pipefitters install this type of fitting in commercial and residential piping systems where a concentric pipe size reduction is needed within the run of pipe.
This bushing is used in threaded pipe assemblies requiring a reduction from 2.5-inch to 0.75-inch pipe size. Typical applications include gas distribution lines, water supply piping, and industrial process piping. The black cast iron material is a standard choice for gas service and non-potable water lines. Domestically sourced, this fitting meets the general demands of mechanical contractors and service plumbers working with Schedule 40 threaded pipe systems.
Designed as an OEM-style replacement or new-installation fitting for threaded cast iron pipe systems using standard NPT connections in residential and commercial applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Shut off and depressurize the pipe system completely before removing or installing any threaded fitting. Apply an appropriate pipe thread sealant or PTFE tape to male threads before assembly. Do not over-tighten cast iron fittings, as the material is not rated for flex and can crack under excessive stress.
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