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XJG Conduit Expansion Couplings for EMT and Rigid/IMC

XJG conduit expansion couplings for EMT and rigid/IMC are used with EMT, rigid metal conduit and IMC to couple together two sections of conduit subject to longitudinal movement.  They are installed indoors or outdoors in long conduit runs to permit linear movement caused by thermal expansion and contraction to prevent damage to conduit supports and electrical systems in building or bridges.

XJGs for rigid/IMC are also available with a hot dip galvanized finish for added corrosion protection against harsh environmental factors.

XJG Couplings

Certifications and compliances

 

  • UL standard: 514B
  • CSA 22.2 No. 18 3-12
  • NEMA FB1
  • Wet locations
  • Third party certified as an effective grounding means (i.e. the path to ground is permanent and continuous), for two sections of conduit subject to expansion or contraction

Design features

  • Weatherproof and approved for use indoors or outdoors without an external bonding jumper
  • Available in 1/2” through 6” trade sizes
  • For use with rigid metal, IMC and EMT conduit
  • Available in 4” and 8” maximum conduit movement
  • Internal bonding springs and metallic bushings create high integrity internal ground connection and eliminate need for external bonding jumpers and clamps (up to 4” trade size)
  • Optional redundant tinned copper bonding jumpers (BJ series – ordered separately)
  • UL Listed for use in wet locations

Standard materials

Body:

  • Steel – electrogalvanized: 1/2"-4"
  • Copper-free aluminum (optional) – natural: 1/2"-4"
  • Feraloy iron alloy – electrogalvanized: 5” and 6” only

Reducer & gland nut:

  • Steel – electrogalvanized: 1/2” through 1”
  • Feraloy iron alloy – electrogalvanized and aluminum paint: 1-1/4” through 6”

Packing:

  • PTFE composite

Washer & bushing:

  • Steel – electrogalvanized

Gasket:

  • Vellum

Ground springs:

  • Phosphor bronze – electrogalvanized

Ground strap:

  • Braided tinned copper

U-bolts:

  • Malleable iron – electrogalvanized

Drawings and design support

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