3 inch PVC Sewer and Drain Coupling Hub x Hub

3 inch S&D Coupling – P602 WEST Hub x Hub PVC Connector for Non-Pressure Drainage Systems

The P602 WEST S&D Coupling HXH 3 inch (model 7021) is a solvent-welded fitting used in gravity-flow sewer and drain (S&D) systems. Manufactured from rigid PVC and molded to industry-standard dimensions, this coupling is intended for connecting two lengths of plain-end Schedule 40 or SDR-35 pipe in non-pressurized piping assemblies.

This component is hub x hub (socket x socket) and is designed for installation using solvent cement to provide a permanent mechanical bond. The fitting complies with ASTM D3034 and/or ASTM D2665 standards (depending on system classification) and is suitable for buried and above-ground applications where corrosion resistance, dimensional stability, and chemical resistance are required.

Product Characteristics

• ✅ Material: Rigid PVC (Polyvinyl Chloride) – non-metallic, non-corrosive
• ✅ Size: 3-inch nominal diameter
• ✅ End Connections: Hub x Hub (solvent weld sockets)
• ✅ Use Classification: Sewer & Drain (S&D), non-pressure
• ✅ Compliance: Manufactured in accordance with applicable ASTM and/or CSA standards

Installation Requirements

Installation should follow solvent-welding best practices per ASTM D2855. Proper pipe preparation—including chamfering, cleaning, and priming—is essential to achieving full bond strength. Cure time must be observed based on ambient temperature and pipe diameter. The coupling should not be used in pressurized systems or where thermal expansion is a concern without additional allowances.

Common Applications

Typically installed in sanitary sewer laterals, stormwater drainage lines, and site utility piping networks. This coupling is used in both new construction and system modifications to join straight runs of pipe in trench installations or within structural slabs.

Material Insight

PVC S&D fittings offer a lightweight alternative to cast iron and concrete for underground piping systems. Their resistance to chemical attack from common wastewater compounds and ease of handling makes them widely used in civil and residential infrastructure projects.

The P602 WEST 3 inch Coupling provides a secure, solvent-welded connection that meets performance requirements for gravity-flow piping systems. It is suitable for systems governed by IPC, UPC, or local municipal specifications where S&D fittings are permitted.