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The VALUE COLLECTION LDCMM 25-NPT-3000 is a 1-inch hex pipe plug designed for threaded pipe systems requiring a reliable, pressure-rated closure. Constructed from 304 and 304L stainless steel, this plug offers corrosion resistance suitable for demanding service environments. The male NPT (MNPT) threaded end connection allows for straightforward installation into standard female NPT fittings. Rated to 3,000 psi, it is appropriate for medium- to high-pressure applications in plumbing, hydraulic, and industrial piping systems. Licensed plumbers and pipefitters are the typical installers for this type of fitting in both new construction and maintenance work.
This hex plug is used to cap or close off 1-inch female NPT threaded pipe ports in residential and commercial piping systems. Common applications include dead-ending branch lines, capping test ports, plugging unused manifold outlets, and sealing off inactive lines during system modifications. The hex head design allows for installation and removal with standard wrenches, making it practical in tight or confined spaces where a flush plug would not be accessible.
Designed as an OEM-style replacement or direct-install fitting for 1-inch female NPT threaded pipe ports in plumbing, hydraulic, and industrial piping systems.
Installation is typically performed by a licensed plumber or pipefitter. Isolate and depressurize the pipe system completely before removing or installing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before installation, following local plumbing code requirements such as those referenced in the IPC or IFGC. Do not overtighten; use a wrench on the hex head only and avoid applying force to the pipe body.
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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