1-1/2 inch x 1-1/4 inch PVC DWV Trap Reducing Adapter Fitting x Slip Joint

1-1/2 inch x 1-1/4 inch PVC DWV Trap Reducing Adapter – Engineered Transition for DWV Systems

For drainage, waste, and vent (DWV) applications, dimensional accuracy and chemical resistance are key. This 1-1/2 inch x 1-1/4 inch PVC trap reducing adapter offers a reliable method for joining dissimilar pipe sizes within DWV systems, ensuring consistent hydraulic flow and mechanical stability.
Manufactured to meet ASTM standards, this adapter is fabricated from corrosion-resistant polyvinyl chloride and designed for code-compliant installations in both residential and commercial settings.

Benefits of High-Standard PVC Fittings

Fittings manufactured to industry-grade tolerances reduce the risk of jobsite issues and simplify the inspection process. Performance-focused attributes include:

• ✅ Minimized Risk of Joint Failure Precision-molded construction provides consistent engagement and bonding surface area.
• ✅ Time-Saving Fit-Up Slip-joint design allows for streamlined alignment and solvent welding.
• ✅ Uniform Seal Quality Maintains integrity in non-pressurized applications under normal DWV operating conditions.
• ✅ Code-Ready Configuration Manufactured in compliance with applicable plumbing standards for DWV use, including UPC and IPC guidelines.

Technical Details

• Material: Schedule 40 PVC (polyvinyl chloride), suitable for non-pressurized systems
• Dimensions: 1-1/2 inch x 1-1/4 inch nominal size
• Connection Type: Hub-to-hub slip configuration for solvent welding or mechanical coupling
• Applications: Reducing transitions in sanitary drainage and vent piping

Installation Considerations

Designed for compatibility with standard DWV pipe and fittings, installation requires solvent cement and primer approved for PVC. For optimal performance, surfaces should be properly prepared, and adequate set/cure time observed. Always verify compatibility with system specifications and local plumbing regulations.

Common Applications

This reducing adapter is typically used at fixture connections or in areas where pipe downsizing is necessary to meet fixture outlet dimensions. It’s commonly installed in under-sink assemblies, lavatory branches, and tight-space waste line transitions where dimensional changes are required.

Material Performance Insight

PVC is widely used in DWV systems due to its lightweight handling, low thermal conductivity, and resistance to internal scaling and external corrosive elements. Its long service life and adaptability across various layouts make it a reliable choice for modern drainage infrastructure.

This 1-1/2 inch x 1-1/4 inch DWV trap reducing adapter provides a durable, precise, and code-compliant solution for transitioning between pipe sizes in gravity drainage applications. Ideal for use in new builds and retrofit systems where reliability and performance are non-negotiable.