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The BMI USA 10140 is a black steel pipe nipple measuring 4 inches in length. Pipe nipples are short lengths of pipe threaded on both ends, used to connect two fittings, valves, or other piping components in a run. This nipple features a black steel construction, making it well suited for gas distribution, water supply, and general plumbing applications where corrosion resistance from a protective black oxide finish is acceptable. Licensed plumbers and pipefitters install this type of fitting as part of standard threaded piping assemblies in both residential and light commercial systems.
This 4-inch black pipe nipple is commonly used in gas piping systems, fire suppression lines, steam distribution, and general-purpose plumbing installations. It fits into any standard threaded pipe assembly that calls for a short connecting section between two female-threaded components such as valves, couplings, unions, or tees. Its compact length makes it useful for close-clearance runs where a longer nipple would not fit.
Designed as a standard replacement or new-installation fitting for threaded black steel pipe systems in residential and light commercial gas, water, and steam piping applications.
Installation should be performed by a licensed plumber or pipefitter following applicable local plumbing and gas codes, including IFGC requirements where gas service is involved. Shut off the gas supply or water supply completely and depressurize the line before disassembling any threaded connections. Apply appropriate thread sealant or PTFE tape to the male threads before assembly, and tighten fittings to a secure, leak-free connection using properly sized pipe wrenches. Do not overtighten, as this can crack fittings or damage threads.
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