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The ASC Engineered Solutions 4354002820 is a black steel seamless extra heavy (XH) pipe nipple sized at 1.5 inches by 2.5 inches. Pipe nipples are short threaded sections used to connect fittings, valves, or other components in a piping system. This nipple is manufactured to ASTM A106 Grade B standards, making it suitable for high-pressure and high-temperature service. Its seamless construction eliminates a longitudinal weld seam, providing uniform wall strength throughout. Licensed plumbers, pipefitters, and mechanical contractors install nipples like this in steam, gas, and water distribution systems where wall thickness and pressure rating are critical factors.
This extra heavy nipple is appropriate for commercial and industrial piping applications where standard-weight fittings are insufficient. Typical install scenarios include high-pressure steam lines, compressed gas headers, and heavy-duty water distribution runs. The 1.5-inch by 2.5-inch sizing fits common branch and riser connections in mechanical rooms and process piping layouts. It is classified as a non-domestic import product.
Designed as an OEM-style replacement or new-installation fitting for black steel threaded piping systems using 1.5-inch nominal pipe size connections in extra heavy service class.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes such as the IPC or IFGC. Shut off and depressurize the affected line segment before removing or installing any threaded fitting. Apply appropriate thread sealant or PTFE tape to NPT threads before assembly. Do not over-tighten threaded connections, as this can crack fittings or distort threads.
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