3 inch Copper Coupling with Stop Copper x Copper

3 inch Copper Coupling – Built for System Integrity and Long-Term Performance

The 3 inch Copper Coupling is engineered for joining copper tube segments with precision and reliability. Designed to meet the demands of high-volume water movement and system uniformity, it provides a secure fit that maintains flow efficiency and reduces the potential for joint failure in large-diameter piping applications.

Fabricated from lead-free copper, this coupling supports compliance with potable water codes and delivers corrosion resistance across a range of service environments. Its standard dimensions and sweat connection profile ensure compatibility with most Type L and Type M copper piping systems.

Key Product Advantages

• ✅ Consistent Dimensional Accuracy – Manufactured to tight tolerances for seamless alignment and joint integrity.
• ✅ Code-Compliant Copper Alloy – Meets lead-free requirements for potable water use under the Safe Drinking Water Act.
• ✅ Pressure and Thermal Stability – Suitable for pressure-rated applications in domestic water and hydronic distribution systems.
• ✅ Full-Length Insertion Depth – Allows for maximum surface engagement and capillary action during soldering.

Typical Applications

This coupling is commonly used in horizontal and vertical plumbing runs within residential, commercial, and institutional projects. It is ideal for joining straight sections of 3 inch copper tubing in new installations, repipes, or system expansions—especially where uniformity and reduced installation time are critical.

Regulatory Compliance

This product complies with lead-free legislation applicable in all U.S. states for use in drinking water systems. It is approved for both cold and hot water lines in pressure-rated copper systems.

Installation Considerations

Installation of the 3 inch Copper Coupling requires proper cleaning, flux application, and even heat distribution during soldering. Ensure full pipe insertion and uniform heat application around the joint to achieve full capillary fill. For systems under pressure, follow standard hydrostatic testing protocols after assembly. Thread sealants or tapes are not applicable for soldered joints.

Technical Specifications

• Material: Lead-Free Copper (ASTM B88)
• Nominal Size: 3 inch
• Connection Type: Copper x Copper (Sweat)
• Certifications: ANSI/NSF 61-G Compliant for Potable Water

Summary

The 3 inch Copper Coupling offers dependable performance and dimensional precision for large-diameter piping assemblies. Its construction, compatibility, and compliance make it a trusted component in high-capacity plumbing systems where durability and efficiency are paramount.