1 inch Brass Cored Square Head Plug

1 Inch Brass Cored Square Head Plug – Threaded Pipe Closure

The 1 Inch Brass Cored Square Head Plug is engineered for threaded pipe systems where a secure, corrosion-resistant closure is required. Constructed from lead-free brass, this plug is designed to provide a permanent or temporary seal in a range of fluid and gas applications. The square head design supports easy installation and removal using standard wrenches.

Material and Construction

• Composition: Lead-free brass alloy compliant with federal and state low-lead regulations (≤0.25% weighted average)
• Design: Cored body reduces material volume while maintaining structural integrity under pressure
• Finish: Machined threads with a clean surface for enhanced thread engagement and sealing

Key Performance Advantages

• Corrosion Resistance: Brass provides excellent resistance to dezincification and chemical degradation in potable water systems
• High Pressure Tolerance: Suitable for use in low- to moderate-pressure environments across water, air, oil, or inert gas lines
• Service Temperature: Capable of operating in typical plumbing temperature ranges without loss of integrity

Installation Considerations

Install using a pipe wrench or adjustable spanner applied to the square head. For leak-resistant performance, thread sealant tape or compound should be used on male threads before tightening. Ensure compatibility with female-threaded NPT pipe components, and verify material suitability with system media before use.

Typical Applications

• Terminating unused ports in distribution manifolds
• Sealing test points and cleanout access in plumbing and hydronic heating loops
• Blocking off tees or elbows during system modifications or repairs

Specifications

• Nominal Size: 1 inch
• Thread Type: NPT (National Pipe Tapered), male
• Head Style: Square head for wrenching
• Material: Lead-free brass (per NSF 61/NSF 372 standards)

This 1 Inch Brass Cored Square Head Plug is a reliable solution for contractors needing durable pipe closure in potable water and general plumbing systems. It meets the demands of both new construction and maintenance in accordance with current building and mechanical codes.