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The MERIT BRASS 4012-1800 is a welded stainless steel pipe nipple sized for 3/4-inch pipe and manufactured to Schedule 40 wall thickness. It is constructed from Grade 304/304L stainless steel, offering solid corrosion resistance in a wide range of piping applications. Pipe nipples of this type serve as short threaded connectors between valves, fittings, and other threaded pipe components. Plumbers, pipefitters, and mechanical contractors install these in both new construction and repair work where a compact, threaded stainless connection is required.
This nipple is suited for residential and commercial plumbing, hydronic heating systems, process piping, and industrial fluid distribution where stainless steel is specified. Grade 304/304L dual certification makes it compatible with both standard and low-carbon stainless applications. The welded construction meets Schedule 40 wall requirements, making it appropriate for general-service pressure piping within the rated limits of the material and connection type.
Designed as an OEM-style replacement or new-installation component for 3/4-inch Schedule 40 stainless steel threaded piping systems using standard NPT connections.
Installation is typically performed by licensed plumbers or pipefitters following applicable IPC or ASME B31 piping code requirements. Shut off and depressurize the system before removing or installing any threaded pipe components. Apply appropriate thread sealant or PTFE tape to NPT threads before assembly. Do not overtighten threaded connections, as stainless steel threads are susceptible to galling.
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