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The ASC Engineered Solutions 318908324 is a black cast iron hex bushing designed to reduce pipe thread sizes in threaded piping systems. This fitting measures 3 inches by 1-1/2 inches and features a hex body for secure wrench engagement during installation. The black coating provides corrosion resistance suitable for standard iron pipe applications. This bushing is installed by licensed plumbers and pipefitters in commercial and residential piping systems where a male-to-female threaded reduction is required at a single fitting point.
This hex bushing is used in threaded black iron pipe systems for gas distribution, industrial process piping, and fire suppression supply lines. The 3-inch male thread reduces to a 1-1/2-inch female thread, making it a common reduction fitting in branch line transitions. It is domestically manufactured and suited for applications where a compact, one-piece threaded reducer is preferred over a nipple-and-coupling combination.
Designed as an OEM-style replacement or new-installation fitting for threaded black iron pipe systems using standard NPT connections.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Thread sealant or PTFE tape rated for the intended service should be applied before make-up. Always depressurize and isolate the line before removing or installing any threaded fitting. Use a properly sized pipe wrench on the hex body to avoid fitting damage.
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