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The MERIT BRASS 8048-300 is a 3 inch by 3 inch Schedule 40 aluminum pipe nipple designed for threaded piping assemblies in industrial, commercial, and mechanical systems. Machined from 6061 aluminum alloy, this nipple is threaded on both ends and sized at 3 inches in diameter with a 3-inch length, making it a close nipple suited for tight-clearance connections. At 0.59 pounds, it handles demanding installations where corrosion resistance and lightweight construction matter. Licensed plumbers and pipefitters install this nipple in fluid conveyance, compressed air, and process piping systems requiring aluminum-grade fittings.
This pipe nipple is appropriate for residential and commercial plumbing, HVAC hydronic lines, compressed air distribution, and light industrial process piping where 6061 aluminum is the specified material grade. Its Schedule 40 wall thickness meets standard pressure ratings for typical mechanical system applications. Installations requiring OSHA-compliant materials will find this nipple meets that standard. It is sold individually and is well-suited for repair, retrofit, and new construction scenarios requiring a short-length threaded aluminum connector.
Designed as an OEM-style replacement or new-installation fitting for Schedule 40 threaded aluminum piping systems using standard NPT connections.
Installation is performed by licensed plumbers or pipefitters following IPC and applicable local mechanical codes. Shut off and depressurize the system completely before removing or installing threaded nipples. Use a properly sized pipe wrench and apply an appropriate thread sealant or PTFE tape rated for aluminum and the intended service fluid. Avoid over-torquing, which can crack aluminum threads or distort the fitting.
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