Usa Industrials ZUSA-PF-20225 3/8 Inch Npt Hex Socket Plug

Product Description

The USA INDUSTRIALS ZUSA-PF-20225 is a 3/8 inch Class 150 iron hex socket plug designed to cap or block off threaded pipe ends in black iron piping systems. The hex socket drive allows for secure installation and removal using a standard hex key or socket wrench without the need for exposed wrench flats. Rated for 150 psi, this plug handles typical low- and medium-pressure gas and liquid service found in commercial and industrial piping runs. Plumbers, pipefitters, and HVAC technicians install this type of fitting to terminate branch lines, test ports, or unused outlets in iron pipe systems.

This fitting is suited for residential and light commercial applications where NPT-threaded black iron pipe is used for natural gas, propane, compressed air, or other compatible fluid systems. The hex socket drive recesses flush or near-flush with the pipe end, making it useful in tight spaces where a standard square-head plug would be difficult to seat. It is sold individually and is compatible with standard 3/8 inch NPT-threaded iron pipe and fittings at Class 150 pressure ratings.

Key Features

• 3/8 inch NPT threaded connection for standard black iron pipe systems
• Class 150 pressure rating at 150 psi for gas and liquid service
• Hex socket drive allows installation with a hex key in confined spaces
• Iron construction provides durability in black iron pipe assemblies
• Threaded plug design seals open pipe ends and unused branch outlets

Compatibility

Designed as an OEM-style replacement or new-install fitting for 3/8 inch NPT Class 150 black iron pipe systems in plumbing, HVAC gas lines, and compressed air applications.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter following applicable IPC or IFGC code requirements for the piping system in use. Shut off and depressurize the pipe system before installing or removing any threaded fittings. Apply thread sealant or PTFE tape appropriate for the service medium before threading the plug into the female NPT fitting. Do not overtighten; use a hex key sized to the socket to apply controlled torque without damaging threads.