4 inch PVC DWV Coupling Plastic x Plastic

4 inch PVC DWV Coupling – Solvent-Weld Connector for Non-Pressurized Drainage Systems

The 4 inch PVC DWV Coupling is designed for joining two sections of 4 inch Schedule 40 PVC pipe in gravity-driven drain, waste, and vent (DWV) systems. Featuring slip (hub) connections on both ends, this fitting allows for a secure, solvent-welded joint that complies with standard DWV installation practices.

Constructed from rigid polyvinyl chloride (PVC), this coupling offers dimensional stability, corrosion resistance, and compatibility with a wide range of residential and commercial applications. Its smooth interior helps maintain flow efficiency by minimizing friction and reducing solids accumulation.

Technical Specifications

• Material: PVC (Polyvinyl Chloride), Schedule 40
• Size: 4 inches (nominal diameter)
• Connection Type: Slip x Slip (Hub x Hub)
• System Type: DWV (Drain, Waste, and Vent)
• Standards: ASTM D2665, ASTM D3311

Key Features

• ✅ Solvent-Weld Sockets – Accepts full-depth pipe insertion and provides a leak-resistant mechanical bond.
• ✅ Rigid Schedule 40 PVC – Durable material suitable for non-pressurized underground and above-ground drainage systems.
• ✅ Corrosion Resistant – Performs reliably in environments with exposure to moisture, waste materials, and common household chemicals.
• ✅ Smooth Bore Interior – Reduces potential for clogs and promotes uniform waste flow.

Installation Guidelines

Install using approved primer and solvent cement. Ensure all joining surfaces are clean, dry, and properly deburred. Insert the pipe fully into the coupling hub, align for fit, and allow adequate curing time before testing or pressurizing the system. Fitting should be installed according to local code requirements.

Typical Applications

Used to extend, repair, or realign 4 inch DWV piping runs in both horizontal and vertical layouts. Common in new construction and retrofit work involving sanitary drainage systems in residential and light commercial buildings.

Material Performance

Schedule 40 PVC is recognized for its longevity in DWV service. It does not corrode, pit, or support biological growth, and it maintains structural performance under thermal and mechanical stress in code-approved applications.

The 4 inch PVC DWV Coupling is a standard component for solvent-weld DWV systems. Its dimensional accuracy and material properties make it a dependable option for creating permanent joints between pipe sections in sanitary drainage applications.