Southwire 1080 4 Inch Pvc Two-piece Expansion Coupling

Product Description

The SOUTHWIRE 1080 is a 4-inch PVC two-piece expansion coupling designed for use in conduit systems where thermal movement must be accommodated. Expansion couplings allow conduit runs to expand and contract without stressing fittings or junction points. This fitting is constructed from PVC, making it suitable for corrosion-resistant installations in both indoor and exposed outdoor conduit runs. Licensed electricians and electrical contractors install this type of fitting during conduit rough-in work on long straight runs where temperature-driven expansion is a known factor.

This expansion coupling is used in electrical conduit installations requiring flexible mechanical connections between conduit sections. It is well suited for commercial and industrial applications where extended runs of PVC conduit are subject to temperature variation. The two-piece design simplifies installation in tight spaces or retrofit situations where a single-piece coupling would be difficult to seat properly.

Key Features

• 4-inch trade size fits standard 4-inch PVC conduit
• Two-piece construction allows installation on existing conduit runs
• PVC material provides corrosion resistance for damp or wet locations
• Expansion design accommodates thermal movement along conduit runs
• Helps prevent stress cracking at conduit joints on long runs

Compatibility

Designed as an OEM-style replacement and standard fitment for 4-inch schedule PVC electrical conduit systems requiring expansion joints.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for conduit expansion fittings. De-energize all circuits in the conduit run before working on the system. Follow conduit manufacturer guidelines for expansion gap setting based on the expected temperature range at the install site. Do not use solvent cement on the slip portion of the coupling, as this would defeat the expansion function.

Technical Specifications

• Trade Size: 4 inches
• Material: PVC
• Configuration: Two-piece
• Weight: 29 pounds
• UPC: 75133823161

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 1080