Cantex PVC Conduit Expansion Coupling, 2 in and 3 in

Cantex 5144038 3" Schedule 40 PVC Expansion Coupling

The Cantex 5144038 is a 3" Schedule 40 PVC Expansion Coupling engineered to accommodate axial movement in rigid PVC conduit runs caused by thermal expansion and contraction. Sized for 3" trade size conduit, this Schedule 40 PVC fitting allows installers to maintain a continuous, properly supported raceway in installations where temperature swings would otherwise stress a fixed joint. Built from PVC for corrosion resistance, the Cantex expansion coupling is a purpose-built component for professional electrical and telecommunications conduit systems that require slip capability without sacrificing raceway integrity.

Key Features

• Trade Size: 3" sizing for direct compatibility with 3" Schedule 40 PVC conduit runs.
• Durable Construction: PVC material provides corrosion and chemical resistance for long service life in exposed and buried conduit systems.
• Schedule 40 Rated: Matches the wall thickness and pressure classification of standard Schedule 40 PVC conduit for consistent system performance.
• Expansion Function: Purpose-built expansion coupling design compensates for conduit movement due to temperature-driven expansion and contraction, reducing stress on joints and supports.
• Lightweight, Non-Metallic Design: PVC construction simplifies handling and installation compared to metallic conduit fittings, while eliminating the risk of galvanic corrosion.

Technical Specifications

• Product Type: Expansion Coupling
• Product Material: PVC
• Trade Size: 3"
• Schedule: Schedule 40

Typical Applications

• Rigid PVC Conduit Raceway Systems
• Underground and Above-Ground Conduit Runs Subject to Temperature Variation
• Commercial and Industrial Electrical Installations
• New Construction and Conduit System Expansion Projects
• Telecommunications and Utility Conduit Systems

Why Cantex?

Cantex PVC conduit and fittings are manufactured to Schedule 40 specifications, giving contractors a consistent, code-aligned building block for non-metallic raceway systems. The 5144038 expansion coupling reflects that same attention to fit and material integrity, offering electrical professionals a reliable way to manage conduit movement without compromising the durability of the overall installation. Choosing Cantex components helps ensure compatibility across the full run of 3" Schedule 40 PVC conduit and fittings on a project.