3/4 inch Brass Cored Square Head Plug

3/4 inch Lead-Free Brass Square Head Cored Plug – Threaded Pipe Closure for Potable Systems

The 3/4 inch Lead-Free Brass Square Head Cored Plug is a threaded fitting used to terminate or seal the end of a female-threaded pipe or fitting. Manufactured from certified lead-free brass, it is suitable for use in potable water systems, mechanical piping layouts, and pressure-rated installations requiring reliable closure at unused outlets or service ports.

The square head design enables direct engagement with wrenches or sockets, simplifying installation and removal in confined spaces. This plug is machined to NPT specifications to ensure thread compatibility and sealing integrity in regulated plumbing environments.

Product Features

• ✅ Lead-Free Brass Construction – Conforms to Safe Drinking Water Act (SDWA) and NSF/ANSI 372 standards for potable system compliance.
• ✅ Square Head Profile – Provides positive wrench engagement for secure torque application during installation or servicing.
• ✅ Threaded Male NPT Connection – Machined for tight fitment with Schedule 40 brass, copper, or composite female-threaded components.
• ✅ Pressure-Rated Closure – Suitable for sealing off distribution lines, branch ports, cleanouts, or test points under pressure.
• ✅ Corrosion-Resistant Material – Brass alloy resists dezincification and oxidation in contact with domestic water systems.

Installation Considerations

Apply thread sealant or PTFE tape prior to installation. Use a properly sized open-end or adjustable wrench to avoid rounding off the square head. Ensure full thread engagement without over-tightening. Suitable for above-ground and accessible locations in accordance with plumbing code. Verify material compatibility with all mating components in the system.

Common Use Cases

This fitting is typically used to:

• Seal unused outlets on tees, manifolds, or distribution blocks
• Terminate test ports or branch lines in potable plumbing systems
• Provide future service access in domestic hot or cold water piping

Material Compliance

Lead-free brass plugs are required in potable systems under federal and state regulations. This component meets all applicable standards for use in drinking water systems and is suitable for municipal and private plumbing infrastructure.

Technical Specifications

• Nominal Size: 3/4 inch
• Material: Lead-Free Brass
• Head Type: Square
• Connection: Male NPT Threaded
• Standards: NSF/ANSI 61 & 372 compliant

The 3/4 inch Lead-Free Brass Square Head Cored Plug provides a code-compliant and corrosion-resistant solution for sealing off threaded system terminations in potable water and mechanical piping applications. Specify for closure where service access, system integrity, and regulatory compliance are required.