1 inch Copper Coupling with Stop Copper x Copper

1 inch Copper Coupling with Stop – Solder Joint Fitting for Copper Tube Systems

The 1 inch Copper Coupling with Stop is a solder (sweat) fitting designed to join two segments of 1 inch nominal copper tubing. Constructed from wrought copper (UNS C12200), the coupling features a center stop that ensures precise pipe insertion depth during assembly. It is intended for use in pressure-rated water distribution systems, hydronic heating, and other compatible applications using Type L or Type M copper pipe.

Manufactured in compliance with ASME B16.22 and ASTM B75, this coupling supports soldered joint assemblies and is compatible with standard lead-free plumbing systems. The coupling’s smooth interior and socket ends allow for uniform capillary action when applying solder, resulting in leak-tight, code-compliant joints.

Product Features

• ✅ Lead-Free Copper Body – Manufactured from C12200 alloy and certified under NSF/ANSI 61 and 372 for potable water use.
• ✅ Center Stop Feature – Ensures accurate pipe insertion depth and alignment, simplifying field assembly.
• ✅ Sweat x Sweat Connection – Accepts standard copper tubing for soldered installations in domestic and commercial systems.
• ✅ Standard Dimensional Tolerances – Fabricated to ASME B16.22 for uniform fit across compatible copper piping systems.

Technical Specifications

• Material: Wrought Copper (ASTM B75, Alloy C12200)
• Nominal Size: 1 inch
• Connection Type: Socket x Socket (Solder End)
• Compliance: ASME B16.22, NSF/ANSI 61 & 372, Lead-Free Certified

Installation Notes

Install using industry-standard soldering practices in accordance with ASTM B828. Ensure all copper pipe ends are cut square, cleaned, reamed, and fluxed. Use compatible lead-free solder and maintain even heat application for complete solder flow. The center stop prevents over-insertion, improving joint consistency and alignment in pressurized systems.

Common Applications

This coupling is used in water supply lines, closed-loop hydronic circuits, and mechanical piping systems where straight-line pipe joining is required. It is commonly installed in wall cavities, utility chases, and manifold assemblies for both residential and light commercial systems.

Regulatory Note

In accordance with U.S. plumbing codes and the Reduction of Lead in Drinking Water Act, copper fittings used in potable water systems must be certified as lead-free. This coupling meets those requirements for code-approved installations.

The 1 inch Copper Coupling with Stop provides a reliable, soldered solution for joining copper tubing in compliant water and heating systems. It is engineered for durability, pressure performance, and dimensional consistency in field-installed piping systems.