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The FIBRE-METAL 69029109010 is a 4-inch forged steel hex head plug fitting manufactured to ASTM A-105 carbon steel specifications. This threaded plug is used to close off pipe openings in high-pressure piping systems, blocking flow at open pipe ends, unused branch outlets, or service ports. The hex head drive allows for installation and removal with standard wrenches. ASTM A-105 forged carbon steel construction provides the pressure and temperature integrity required in industrial and commercial piping applications. Licensed plumbers, pipefitters, and mechanical contractors typically specify this fitting where a durable, pressure-rated threaded closure is required.
This hex head plug is suited for use in industrial process piping, steam systems, oil and gas distribution lines, and commercial mechanical systems where a threaded pipe closure is needed. The 4-inch nominal pipe size fits standard NPT threaded pipe connections of that diameter. It is appropriate for both new construction and retrofit or maintenance work where an existing pipe branch or service port must be capped and sealed.
Designed as an OEM-style forged steel threaded plug fitting for 4-inch NPT pipe connections in industrial, commercial, and mechanical piping systems.
Installation should be performed by a licensed pipefitter or plumber in accordance with applicable mechanical codes such as the International Plumbing Code or ASME B31 piping standards. Depressurize and isolate the piping system completely before installing or removing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads before engagement. Do not over-torque; follow applicable code or system design specifications for makeup torque on threaded fittings.
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