Atkore EJ-312 Epvc Expansion Joint 3.5 Inches

Product Description

The ATKORE EJ-312 is a 3.5-inch EPVC expansion joint designed to accommodate thermal expansion and contraction in electrical PVC conduit systems. This fitting absorbs axial movement caused by temperature fluctuations, protecting the integrity of the conduit run and preventing stress fractures or joint separation. Electricians install this component in exposed or embedded conduit systems where temperature swings are significant, such as rooftop runs, outdoor service entries, and large commercial or industrial installations. The EPVC construction provides resistance to corrosion and the chemical exposure common in these environments.

This expansion joint is suited for use in commercial and industrial electrical conduit installations where long conduit runs require movement compensation. It is appropriate for surface-mounted, exposed, and concealed applications subject to thermal cycling. Licensed electricians working under NEC guidelines will encounter this fitting in large-scale conduit systems on rooftops, parking structures, and exterior building runs where conduit length and temperature variation demand expansion control.

Key Features

• 3.5-inch trade size accommodates standard EPVC conduit of that diameter
• EPVC construction offers corrosion resistance in outdoor and chemically active environments
• Designed to absorb axial movement from thermal expansion and contraction in conduit systems
• Helps prevent joint separation and conduit stress fractures in long runs
• Suitable for commercial and industrial electrical conduit applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3.5-inch EPVC electrical conduit systems in commercial and industrial applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements for conduit system expansion fittings. De-energize all circuits in the conduit run before working on the system. Secure conduit on both sides of the expansion joint according to manufacturer and code guidelines to allow proper axial movement. Do not over-cement or rigidly restrain the fitting in a way that prevents intended movement.

Technical Specifications

• Trade Size: 3.5 inches
• Material: EPVC
• UPC: 622454340695

Standard Information

• Brand: ATKORE
• Manufacturer Part Number: EJ-312