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

1-1/2 Inch PVC DWV Trap Adapter – Hub x Slip Joint

The 1-1/2 inch PVC DWV trap adapter (Hub x Slip Joint) is used to transition between solvent-welded DWV systems and tubular slip joint assemblies. It enables straightforward connection of tubular P-traps to rigid PVC waste piping in drainage and vent applications, supporting alignment and future accessibility.

Application-Ready Performance

Designed in accordance with DWV system specifications, this fitting delivers consistent dimensional stability and mechanical performance for residential and light commercial systems:

• ✅ Schedule 40 PVC Construction – Provides structural integrity for non-pressurized waste, vent, and drainage lines.
• ✅ Integrated Slip Joint Connection – Accepts 1-1/2 inch tubular components and includes a compression washer seat for watertight sealing.
• ✅ Hub End Socket – Solvent-weldable hub end mates with standard 1-1/2 inch PVC Schedule 40 piping in accordance with ASTM D2665.

Contractor Benefits

This adapter is a preferred solution for interfacing rigid PVC with serviceable drain assemblies, often in under-sink or lavatory locations:

• ✅ Time-Saving Assembly – Eliminates the need for full solvent-welded P-trap runs during fixture rough-in or retrofits.
• ✅ Reversible Connections – Slip joint design allows for future disassembly or adjustment without pipe cutting.
• ✅ Reliable Alignment – Enables accurate vertical-to-horizontal transitions at fixture branches or tailpiece drops.

Installation Considerations

Install hub side with ASTM D2564-compliant PVC solvent cement and primer. Ensure joint is fully seated and cured before applying torque to slip joint nut. For slip joint assembly, use the appropriate compression nut and tapered washer. Confirm sealing surfaces are clean and properly seated to prevent leaks.

Use Cases

This fitting is commonly installed in bathroom and kitchen fixture rough-ins to join lavatory, sink, or laundry drain outlets to building DWV piping. It supports accessibility where periodic disconnection or alignment correction may be required.

Technical Note

PVC Schedule 40 DWV fittings like this are designed for gravity-fed drainage systems only. They should not be used in pressurized systems. All materials conform to applicable codes and standards for building drainage installations.

For contractors seeking flexibility, compliance, and reliability, the 1-1/2 inch PVC DWV Trap Adapter (Hub x Slip Joint) delivers field-tested performance in fixture drainage transitions. It offers a balance of rigidity and serviceability, helping streamline installation and future maintenance without compromising system integrity.