2-1/2" Expansion Coupling Rigid Expansion Coupling The 2-1/2" Expansion Coupling by Southwire is designed to accommodate up to 4 inches of linear movement caused by thermal expansion and contraction in rigid conduit systems. This product is suitable for use by electrical distributors and switchgear suppliers requiring reliable conduit connections that maintain circuit integrity in outdoor and dynamic environments. Its weatherproof design supports applications on structures prone to movement such as bridges, railroads, and buildings. The internal grounding design eliminates the need for external bonding jumpers and cables, ensuring safe and efficient grounding. Specifications Manufacturer: Southwire Manufacturer Part #: TXJG74HDG Size: 2-1/2" Product Weight: 12.55 lbs UPC: 751338015104 Material: Steel body, malleable iron reducer, washer, and bushing Finish: Hot dip galvanized Movement Capacity: Up to 4" linear movement (2" in either direction on center) Standards: UL 514B, Fed. Spec WF-408E, NEMA FB 1, ASTM A123/123M Features c(UL)us listed for wet locations Internal grounding design prevents need for external bonding jumpers and cables Prevents conduit buckling and circuit failures Weatherproof design suitable for outdoor structures prone to movement Hot dip galvanized finish provides superior protection against severe environmental factors Compatible with Rigid UL 6 Conduit Downloads & Links Spec Sheet Installation Instructions-Expansion Couplings