2-1/2 inch Copper Coupling with Stop Copper x Copper

2-1/2 inch Copper Coupling – Wrot Copper, C x C for Pressure and Potable Water Systems

The 2-1/2 inch Copper Coupling is a full-stop, copper-to-copper fitting designed for joining straight runs of 2-1/2 inch Type K, L, or M copper tubing. Manufactured from lead-free wrought copper, this coupling provides a permanent, soldered connection in pressure-rated potable water, hydronic, and mechanical piping systems.

This fitting is produced to meet the dimensional and material specifications of ASME B16.22 and is certified for use in systems requiring NSF/ANSI 61 and 372 compliance. Its uniform wall thickness and socket depth ensure proper capillary action and leak-resistant performance when properly installed with lead-free solder.

Contractor-Specific Features

• ✅ Wrot Copper Construction – Formed from lead-free copper per ASTM B75; corrosion-resistant and suitable for potable water distribution.
• ✅ Socket x Socket Configuration – Accepts copper tubing on both ends for sweat connections using approved solder and flux.
• ✅ Precision Formed Stop – Mid-body stop ensures proper pipe insertion depth and alignment for reliable joint formation.
• ✅ High-Pressure Capability – Rated for continuous service at 200 PSI and 180°F when installed in accordance with code.
• ✅ Code Compliant – Conforms to IPC, UPC, and state-level plumbing codes for potable and hydronic systems.

Technical Specifications

• Material: Lead-Free Wrought Copper (ASTM B75)
• Nominal Size: 2-1/2 inches
• Connection Type: Copper x Copper (C x C, socket ends)
• Applicable Standards: ASME B16.22, NSF/ANSI 61 & 372, IAPMO/UPC listed
• Service Rating: 200 PSI @ 180°F (derated at higher temperatures)

Installation Guidelines

Prepare pipe ends by cleaning, reaming, and applying lead-free flux. Insert the tubing into the fitting until it contacts the internal stop. Heat the joint evenly and apply solder to ensure full capillary fill. Allow joints to cool naturally and inspect visually for uniform bead formation. Always perform pressure testing per project specifications prior to service activation.

Application Range

Commonly used in large-diameter copper piping layouts for water supply mains, boiler tie-ins, and commercial mechanical rooms. This coupling is suitable for both aboveground and concealed piping, including slab and wall cavity installations where soldered copper systems are specified.

Code Insight

Lead-free copper fittings are mandated by federal and local regulations for use in potable water systems. This coupling meets all lead content limits as required under the Safe Drinking Water Act.

The 2-1/2 inch Copper Coupling is an essential fitting for joining copper tubing in pressure and domestic water systems. Its precision-formed design, code compliance, and material durability ensure consistent performance across a wide range of commercial and residential applications.