4 inch PVC DWV Coupling less Stop Plastic x Plastic

4" PVC Slip Coupling – Engineered for Secure DWV Pipe Connections

The 4" PVC Slip Coupling is designed for solvent-welded connections in Schedule 40 DWV systems, allowing the joining of two non-threaded pipes in a straight alignment. Its deep socket design supports proper insertion depth and joint integrity, providing a permanent, leak-resistant bond when installed with approved primer and solvent cement.

Constructed from high-impact, non-toxic polyvinyl chloride (PVC), this fitting is suitable for gravity flow applications and offers excellent chemical resistance, dimensional stability, and corrosion protection in both above-ground and underground installations.

Performance and Field Benefits

This coupling supports professional-grade system performance in sanitary and vent piping configurations:

• ✅ Solvent-Weld End Connections – Socket ends allow for full-surface bonding with compatible 4" Schedule 40 DWV pipe.
• ✅ Non-Pressure Use – Intended for drain, waste, and vent systems only; not rated for pressurized service.
• ✅ Consistent Wall Dimensions – Machined to meet tolerances required for reliable solvent fusion.
• ✅ Code-Compliant Design – Conforms to national standards for building and mechanical codes.

Technical Specifications

• Material: PVC Type 1, Grade 1 (Cell Class 12454 per ASTM D1784)
• Nominal Size: 4 inches
• Connection Ends: Slip x Slip (Socket x Socket)
• Compliance: Meets ASTM D2665 and listed for use in DWV applications

Installation Guidelines

Clean and dry pipe and fitting surfaces before applying primer and solvent cement. Insert pipe fully into each socket and hold momentarily to prevent push-back. Allow for appropriate curing time per the manufacturer's instructions before testing or pressurizing adjacent systems. This product is not compatible with press-fit, threaded, or mechanical joining systems.

Common Applications

Used primarily in 4-inch horizontal and vertical DWV piping, this coupling is suitable for residential, commercial, and light industrial sanitary systems. Ideal for connecting two pipe segments during new installations or when repairing damaged sections.

Regulatory Note

This product is designed in accordance with applicable plumbing code requirements and is suitable for use in systems governed by IPC, UPC, and local code authorities. Not for use in potable water or pressurized service unless otherwise specified by application.