1-1/2 inch Galvanized Iron Threadless Coupling

1-1/2 Inch Galvanized Iron Threadless Coupling – Rigid Conduit Connector

This 1-1/2 inch galvanized iron threadless coupling is designed for use in joining two lengths of rigid metal conduit (RMC) or intermediate metal conduit (IMC) in electrical raceway systems. It provides a rigid, mechanically secure, and electrically conductive bond without requiring threaded connections, streamlining installation in environments where speed and durability are critical.

Product Characteristics

• ✅ Material: Hot-dip galvanized iron for enhanced corrosion resistance
• ✅ Connection Type: Threadless compression – suitable for rigid or IMC conduit
• ✅ Size: 1-1/2 inch nominal trade size
• ✅ Design: Slip-on coupling with integral set screws or compression ring to secure conduit ends

Performance and Compliance

• ✅ Electrical Continuity: Maintains grounding path integrity when installed per code
• ✅ Corrosion Resistance: Zinc coating offers protection in dry and mildly damp locations
• ✅ Listings: UL listed and CSA certified for use with rigid metal conduit and intermediate metal conduit
• ✅ Application Standard: Compliant with NEC® and NEMA FB-1 requirements

Installation Notes

Threadless couplings are installed by sliding the fitting over the ends of two unthreaded conduit sections. The coupling is then secured via compression or mechanical fasteners, depending on its design. Ensure all conduit ends are properly deburred and fully seated before securing. Do not use in wet or hazardous locations unless specifically rated for such use.

Always verify compatibility with conduit type and inspect for proper fit. Installers should ensure that locking mechanisms are torqued to manufacturer specifications to maintain mechanical and electrical performance.

Typical Applications

• Electrical raceways in commercial or industrial facilities
• Indoor dry-location conduit runs in utility rooms or equipment enclosures
• Above-grade conduit installations where threading is impractical or not required

Material Overview

Galvanized iron components offer structural rigidity and resistance to rust under normal environmental exposure. The protective zinc layer extends the service life of fittings used in exposed or corrosive conditions, provided environmental limitations are respected.