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The DIXON VALVE COUPLING 1721212C is a brass hex plug designed to seal off open pipe ends in pressurized systems. It features a 3/4 inch male thread with an MNPSM x MNPTF connection type and is rated to a maximum working pressure of 1000 psi. The hex head allows for standard wrench installation, making it a straightforward fit for plumbing, industrial, and mechanical piping systems. Licensed plumbers, pipefitters, and industrial maintenance technicians are the typical installers for this type of fitting.
This hex plug is suited for residential and light commercial plumbing as well as industrial piping applications where a reliable, pressure-rated pipe termination is needed. The brass construction makes it appropriate for use in water, air, and compatible fluid systems. It is sold as a single unit and is used wherever a 3/4 inch male-threaded pipe end must be capped or temporarily sealed under pressure.
Designed as an OEM-style replacement or new-installation fitting for 3/4 inch female-threaded pipe ports requiring a hex plug termination in pressurized piping systems.
Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable IPC or local mechanical code requirements. Always depressurize and isolate the affected line before installing or removing threaded plugs. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement. Do not overtighten, as brass threads can be damaged by excessive torque.
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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