Nibco Inc W00840D 2 Inch Cxc Copper Coupling with Stop

Product Description

The NIBCO INC W00840D is a 2-inch copper pressure coupling with an integral stop, designed for sweat-solder (CxC) copper tube connections in plumbing and mechanical piping systems. The built-in stop positions tube ends at the correct depth inside the fitting, ensuring consistent solder joint formation during installation. Compliant with lead-free requirements, this fitting is appropriate for potable water systems. It carries the C600 product designation and is sold in packages of 10. Licensed plumbers and pipefitters install this fitting in residential and light commercial water distribution, hydronic heating, and general copper tube assemblies.

This coupling is used in straight-run copper tube repairs and extensions where a full-length solder cup fitting is required. The stop shoulder ensures both tube ends seat properly before the joint is sweated, reducing the chance of a void or incomplete solder joint. Typical applications include domestic hot and cold water supply lines, recirculation loops, and hydronic heating supply and return runs using 2-inch Type K, L, or M copper tube.

Key Features

• Integral stop positions tube ends for consistent solder joint depth on both sides
• Lead-free construction meets NSF and applicable safe drinking water requirements for potable water use
• CxC (copper-by-copper) solder cup ends for standard sweat-solder installation
• 2-inch nominal size suits full-bore connections without reducing flow
• C600 pressure fitting designation for copper tube pressure systems
• Sold in a package of 10 units per UoM

Compatibility

Designed as an OEM-style pressure fitting replacement and new-installation coupling for 2-inch copper tube pressure systems using sweat-solder joints.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter. Shut off the water supply and depressurize and drain the affected pipe section fully before cutting or fitting. Clean tube ends and fitting cups with emery cloth or a fitting brush, apply lead-free flux, and sweat the joint using a torch in accordance with ASTM B828 and applicable IPC or local plumbing code requirements. Never apply heat to a fitting that contains water or is under pressure.

Technical Specifications

• Nominal Size: 2 inches
• End Connection: CxC (Copper Sweat Solder)
• Fitting Type: Coupling with Stop
• Lead-Free: Yes
• Product Series: C600
• Package Quantity: 10 EA
• Weight: 4.36 pounds

Standard Information

• Brand: NIBCO INC
• Manufacturer Part Number: W00840D