1-1/2 inch Copper DWV Coupling less Stop Copper x Copper

1-1/2 inch Copper DWV Coupling – Code-Compliant for Drainage Applications

The 1-1/2 inch Copper DWV Coupling is engineered for joining copper tube in non-pressurized drainage, waste, and vent systems. Manufactured to industry standards, this fitting is ideal for applications requiring reliable alignment and soldered joints in horizontal and vertical DWV configurations.

Designed for Performance

• DWV Specification: Fabricated in accordance with ASME B16.29 for DWV copper fittings.
• Sweat Connections: Cup x Cup ends provide a secure interface for soldered joints with type DWV copper tubing.
• Material: Lead-free wrought copper, suitable for use in systems subject to uniform plumbing codes.
• Nominal Size: 1-1/2 inch

Application and Use Cases

This coupling is primarily used in DWV piping networks to extend or repair copper tube runs. It is common in residential and light commercial systems behind walls, under floors, or in stack assemblies where low-pressure, gravity-fed flow is present. It’s particularly effective in retrofitting copper systems without the need for additional reducers or fittings.

Installation Notes

Installation requires proper pipe preparation, including thorough cleaning and flux application prior to soldering. Ensure complete heat penetration and solder fill for optimal seal integrity. This coupling should only be used in drain, waste, and vent lines—not for pressurized potable water or hydronic systems.

Field Insight

Copper DWV fittings like this one offer excellent form stability and are valued for their fire-resistant and antimicrobial properties, especially in enclosed wall systems where long-term reliability is paramount.