3 inch x 2 inch ABS DWV Flush Bushing Fitting x Plastic

3 inch x 2 inch ABS DWV Reducing Coupling – Transition Fitting for Gravity Drainage Systems

The 3 inch x 2 inch ABS DWV Reducing Coupling is designed to provide a solvent-welded transition between different pipe diameters within non-pressurized drain, waste, and vent systems. Manufactured from impact-resistant ABS (Acrylonitrile Butadiene Styrene), this fitting is intended for use in residential and commercial gravity drainage systems.

It facilitates a reduction in pipe size while maintaining system slope and flow characteristics. The coupling is molded to ASTM D2661 standards and is compatible with Schedule 40 ABS piping systems, allowing for consistent installation performance and dimensional alignment.

Product Specifications

• Material: ABS (Acrylonitrile Butadiene Styrene)
• Nominal Size: 3 inch x 2 inch
• Fitting Type: Reducing Coupling (DWV)
• Connection Type: Hub x Hub (solvent weld)
• Standards Compliance: ASTM D2661, CSA B181.1
• System Rating: Non-pressurized DWV systems

Installation Requirements

Install using a primer and ABS solvent cement in accordance with ASTM D2235 procedures. Ensure proper pipe preparation and alignment before solvent welding. Support piping and fittings per local code to avoid stress or misalignment in the joint. System testing should be completed after curing to verify joint integrity.

Applications

Typically used in horizontal or vertical transitions within sanitary drainage and venting systems, this fitting is appropriate for stack offsets, branch reductions, and fixture arm connections. It is suitable for both above-grade and below-grade installations in residential and light commercial construction.

Material Insight

ABS is a rigid thermoplastic valued for its impact resistance and dimensional stability. It performs well in low-temperature environments and is resistant to a range of household chemicals. Unlike PVC, ABS does not require primer, streamlining installation when used in approved jurisdictions.