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The ASC ENGINEERED SOLUTIONS 4354000870 is a black steel seamless extra heavy (XH) pipe nipple sized at 3/8 inch x 4.5 inches. Seamless construction means there is no longitudinal weld seam, which results in uniform wall thickness and greater pressure-handling capability compared to standard-weight welded nipples. The extra heavy wall classification makes this nipple suitable for higher-pressure piping runs where a standard or schedule 40 fitting would be undersized. Plumbers, pipefitters, and mechanical contractors install this type of nipple to make close-coupled threaded connections in black iron piping systems.
This nipple is used in commercial and industrial piping applications where black steel threaded fittings are required. Typical uses include gas distribution headers, steam lines, compressed air systems, and hydraulic piping assemblies. The 3/8 inch diameter is common in branch takeoffs, gauge connections, and instrument taps. Because it is manufactured from A106B seamless steel, it is also appropriate for moderate-temperature service. Import-origin product intended for non-domestic supply applications.
Designed as an OEM-style replacement or new-installation component for threaded black steel piping systems using 3/8 inch NPT connections in commercial and industrial mechanical applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IFGC, ASME B31.1, or local mechanical codes. Shut off and depressurize the piping system fully before removing or installing any threaded nipple. Apply an appropriate thread sealant or PTFE tape rated for the service medium before making up the joint. Do not use pipe wrenches on the pipe body mid-span, as this can damage the threads or distort the fitting.
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