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The ASC Engineered Solutions 830544607 is a black steel extra heavy (XH) close nipple sized at 3 inches with an overall length of 2-5/8 inches. This fitting connects two female-threaded fittings or pipe ends in close proximity, minimizing dead space between connections. It is used in piping systems where a rigid, compact steel connection is required. Licensed plumbers and pipefitters install this type of nipple in gas, steam, air, and industrial fluid systems. The black steel construction and extra heavy wall rating make it suitable for higher-pressure or higher-stress applications compared to standard-weight fittings.
This close nipple is appropriate for use in commercial and industrial piping installations where black steel pipe and fittings are specified. Typical applications include natural gas distribution lines, steam heating systems, compressed air headers, and industrial process piping. The close configuration is selected when two threaded connections must be joined with minimal intervening length, such as at valves, meters, or manifold assemblies. This fitting is sourced as an import product.
Designed as an OEM-style replacement or new-installation fitting for 3-inch black steel threaded piping systems using extra heavy wall pipe and fittings.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off and depressurize the system completely before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape rated for the service fluid before threading the nipple into place. Hand-tighten first, then use a pipe wrench to achieve a proper seal without over-stressing the fitting.
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