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The ASC Engineered Solutions 818907529 is a black malleable iron threaded bushing used to reduce a larger female pipe opening to a smaller male pipe thread. This fitting transitions a 1-1/2 inch female thread down to a 1/2 inch male thread, making it a standard reducing bushing for threaded pipe assemblies. The black coating indicates it is not galvanized and is suited for gas piping, compressed air, and similar non-potable applications. Licensed plumbers and pipefitters install this fitting as part of threaded black iron piping systems in both residential and light commercial settings.
This bushing is used in black iron threaded piping systems where a pipe or fitting with a 1-1/2 inch female thread must connect to a 1/2 inch male thread. Common applications include natural gas distribution lines, propane systems, compressed air lines, and fire suppression headers. The fitting installs wherever a reduction is needed in a threaded black iron assembly and is a frequently stocked item on service trucks and in mechanical rooms.
Designed as an OEM-style replacement fitting for standard NPT threaded black iron piping systems in residential and commercial mechanical applications.
Installation should be performed by a licensed plumber, pipefitter, or qualified mechanical contractor in accordance with applicable local codes and the IFGC or IPC as applicable. Shut off all gas or pressure supply and verify the line is fully depressurized before disassembling or threading any fittings. Apply a listed pipe thread sealant or PTFE tape rated for the service medium to all male threads before assembly. Do not over-tighten; use a backup wrench on adjacent fittings to avoid stressing connected pipe or equipment.
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