1-1/4 inch PVC DWV Coupling Plastic x Plastic

1-1/4 inch PVC DWV Coupling – Solvent Weld Connector for Drain, Waste, and Vent Systems

The 1-1/4 inch PVC DWV Coupling is a straight, slip-style fitting used to join two sections of nominal 1-1/4 inch PVC pipe in gravity-flow drainage systems. Manufactured from non-pressure-rated polyvinyl chloride, this coupling is designed for solvent welding and supports sanitary waste and venting applications in accordance with plumbing code standards.

This fitting is molded to dimensional tolerances established by ASTM D2665, ensuring reliable socket engagement and alignment. It is intended for use in non-pressurized systems where long-term performance and resistance to chemical degradation are required.

Key Features

• ✅ Injection-Molded PVC: Corrosion-resistant and chemically stable for extended service life in sanitary drainage applications.
• ✅ Slip Socket x Slip Socket: Accepts nominal-size pipe ends for solvent weld assembly; no threads or gaskets required.
• ✅ Uniform Wall Thickness: Designed for structural integrity and smooth flow transition between connected pipe sections.
• ✅ ASTM D2665 Compliant: Certified for use in DWV systems as recognized by the IPC, UPC, and model codes.
• ✅ For Above-Ground Use: Typically installed in horizontal or vertical drainage lines in residential and light commercial buildings.

Technical Specifications

• Nominal Size: 1-1/4 inch
• Material: PVC (Polyvinyl Chloride)
• Connection Type: Slip x Slip (Solvent Weld)
• Applicable Standards: ASTM D2665, NSF/ANSI 14

Installation Requirements

Prepare pipe ends by cutting square, deburring, and cleaning. Use appropriate primer and solvent cement per manufacturer's instructions. Insert pipe fully into coupling socket and rotate 1/4 turn for proper bonding. Allow for proper curing before testing. This fitting is not rated for pressurized use and should be installed only in gravity-flow applications.

Common Applications

Used in DWV systems for joining pipe in fixture branches, vent risers, or horizontal waste lines. Suitable for both new construction and repair of existing drainage systems in compliance with local plumbing codes.

Code Compliance Note

PVC DWV fittings must be used only in systems designed for non-pressurized, gravity drainage. Installers should follow all local code requirements for spacing of supports and expansion compensation in plastic piping systems.

The 1-1/4 inch PVC DWV Coupling provides a dependable connection method in building drainage and venting systems. Its solvent weld design and compliance with industry standards support efficient, code-approved installations.