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The ASC Engineered Solutions 8700159257 is a 1/2 inch malleable black iron square head pipe plug designed to seal threaded pipe ends and outlets in plumbing and piping systems. Its hollow core construction follows the regular plug design standard, keeping weight low while maintaining a secure mechanical seal. The square head profile allows wrench engagement for reliable installation and removal in tight spaces. This fitting is sold individually and is a standard component used by licensed plumbers, pipefitters, and mechanical contractors across residential and commercial piping work.
This plug is suited for use in low-pressure gas, water, and general-purpose piping systems where a threaded pipe end requires capping. The 1/2 inch NPT thread size makes it a common fit in branch outlet closures, service shutoffs, and test port plugs on ferrous pipe assemblies. It is appropriate for above-ground interior installations where malleable iron fittings are specified by code or design.
Designed as an OEM-style replacement or new-installation fitting for 1/2 inch NPT threaded ferrous pipe systems in residential and commercial plumbing and mechanical piping applications.
Installation is performed by licensed plumbers or pipefitters. Shut off and depressurize the pipe system before installing or removing any threaded plug. Apply appropriate thread sealant or tape as required by local code and the service medium. Avoid over-tightening, which can crack malleable iron fittings; follow applicable IPC or IFGC guidelines for thread engagement and torque practice.
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