3 inch Copper DWV Coupling less Stop Copper x Copper

3 inch Copper DWV Coupling – For Drain, Waste, and Vent Applications

The 3 inch Copper DWV Coupling is designed for use in non-pressurized sanitary drainage systems. It facilitates the joining of two copper DWV pipes of the same diameter, ensuring continuous flow and code-compliant connections in horizontal or vertical runs.

Product Features

• ✅ Material: Copper – suitable for soldered joints in DWV installations
• ✅ Application: Intended for gravity flow systems only; not for use in pressurized supply lines
• ✅ Lead-Free: Complies with current requirements for potable water installations where applicable
• ✅ Corrosion Resistant: Copper construction provides long-term durability in indoor environments
• ✅ Standard Compliance: Manufactured in accordance with ASME B16.29 and meets ASTM B306 specifications

Technical Specifications

• Nominal Size: 3 inches
• Connection Type: Copper x Copper (sweat connections)
• Wall Type: DWV (Drain-Waste-Vent grade copper tubing)
• Installation Method: Typically installed using lead-free solder and appropriate flux

Common Applications

This copper coupling is typically used in sanitary DWV piping systems in multi-story residential and commercial buildings. It is suitable for branch lines, fixture drains, or building main stacks requiring a straight connection between pipe segments.

Installation Guidelines

Ensure pipe ends are properly cleaned and deburred prior to soldering. Use lead-free solder and flux approved for copper DWV fittings. Heat evenly around the joint for uniform flow. Verify that the coupling is fully seated over the pipe to maintain structural and hydraulic integrity. Installation should comply with applicable local plumbing codes.

Additional Information

Copper DWV fittings are known for quiet operation due to their sound-dampening properties and are widely accepted in applications requiring flame-soldered joints. They offer an extended service life in vent and waste systems where corrosion from aggressive water or waste is not a concern.