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The MIDLAND INDUSTRIES 63632 is a cored hex head plug designed to terminate or cap threaded pipe ends in pressurized systems. Manufactured from 316 stainless steel, it provides strong resistance to corrosion and oxidation in demanding service environments. The fitting uses a 3/8-18 MPT thread conforming to ASME B1.20.1, ensuring consistent thread engagement and leak-resistant seals across standard threaded piping. Rated at 150 lb pressure class, the 63632 is appropriate for a wide range of media and is used by licensed plumbers, pipefitters, and mechanical contractors in both new construction and service work.
This plug is rated for use with air, water, oil, natural gas, and steam media, making it suitable for HVAC, plumbing, and light industrial piping systems. Its 316 stainless steel construction makes it a strong choice in corrosive or high-moisture environments where carbon steel or brass fittings would degrade prematurely. At 0.9 inches tall and 0.8 inches in length, it is compact enough for tight-clearance installations common in mechanical rooms and utility spaces.
Designed for use in 150 lb rated threaded piping systems carrying air, water, oil, natural gas, or steam media. Fits standard 3/8 in MPT threaded pipe connections meeting ASME B1.20.1.
Installation is performed by licensed plumbers or pipefitters following applicable IPC and IFGC codes. De-pressurize and isolate the piping system fully before installing or removing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads before engagement, following sealant manufacturer guidance for the specific media in use. Use a properly sized wrench on the hex head to achieve a firm, leak-free connection without overtightening.
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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