4 inch x 4 inch x 2 inch ABS DWV Reducing Wye Plastic x Plastic x Plastic

4 Inch x 4 Inch x 2 Inch ABS DWV Reducing Wye – Solvent Weld for Drainage Systems

The 4 inch x 4 inch x 2 inch ABS DWV Reducing Wye is a solvent-weld fitting used to connect branch lines to a main horizontal drain line at a 45-degree angle. The reducing branch allows transition from a 4-inch main to a 2-inch lateral, supporting smooth flow within gravity drainage, waste, and vent systems.

Product Features for DWV Applications

• ✅ ABS Thermoplastic Construction – Impact-resistant and non-corrosive; maintains structural integrity across a range of indoor environmental conditions.
• ✅ One-Piece Molded Body – Designed for seamless solvent welding, ensuring leak-free transitions between dissimilar pipe sizes.
• ✅ Reduced Branch – Allows direct connection of smaller-diameter piping into larger systems without the need for multiple fittings.
• ✅ 45° Configuration – Minimizes turbulence and improves flow efficiency in horizontal drainage systems.

Technical Specifications

• Material: Acrylonitrile Butadiene Styrene (ABS)
• Connection Type: Hub x Hub x Hub (Solvent Weld)
• Nominal Sizes: 4 inch x 4 inch x 2 inch
• Application: Drainage, Waste, and Vent (DWV) systems
• Standards: Conforms to ASTM D2665 and CSA B181.1

Common Installation Uses

This reducing wye is commonly installed in residential and commercial plumbing systems for the purpose of joining a smaller lateral drain line to a larger horizontal main. Applications include:

• Connecting fixture drains to branch or building drains
• Integrating 2 inch branch lines from sinks, showers, or laundry units into a 4 inch main
• Allowing for directional change while maintaining laminar flow characteristics

Installation Notes

Install using approved solvent cement for ABS DWV applications. Ensure pipe ends are square-cut, deburred, and fully inserted into the socket to proper insertion depth. Use support per code to prevent movement and maintain alignment.

The 4 inch x 4 inch x 2 inch ABS DWV Reducing Wye is engineered for use in non-pressurized waste systems where directional changes and size reductions must be executed with consistent hydraulic performance and code compliance.