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The VALUE COLLECTION -12148-1 is a 1/4 inch NPT square head pipe plug manufactured from forged carbon steel with a black finish. Rated to Class 3000, this plug is built to handle high-pressure pipe termination and sealing applications in both liquid and gas systems. The forged construction provides consistent thread integrity and pressure-holding capability. It is installed by licensed plumbers, pipefitters, and HVAC technicians working on high-pressure piping assemblies where a flush, secure pipe end closure is required.
This square plug is suited for residential and commercial plumbing, HVAC, and industrial piping systems where NPT threaded fittings are used. The 1/4 inch size fits standard quarter-inch NPT female threaded ports. Typical applications include capping unused branch outlets, plugging test ports, and sealing pipe ends during system modifications or winterization. The black finish provides basic corrosion resistance for dry or moderately humid environments.
Designed as an OEM-style replacement or new-installation fitting for 1/4 inch NPT female-threaded pipe connections in Class 3000 rated plumbing and piping systems.
Installation should be performed by a licensed plumber or pipefitter following applicable IPC or IFGC code requirements. Shut off system pressure and depressurize the line completely before installing or removing any pipe plug. Apply appropriate thread sealant or PTFE tape to the NPT threads before installation. Do not over-tighten; use a properly sized wrench on the square head to achieve a snug, leak-free seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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