EC Series Explosionproof Couplings


EC Explosionproof Couplings are used:

  • In hazardous areas where a flexible member is required in a conduit system to accomplish difficult ends, or to allow for movement or vibration of connected equipment or units
Sizes 1/2" to 4"
Flexible Length 4" to 36"
End Fittings Material 1/2" to 2" – forged brass, natural; 2 1/2" to 4" – stainless steel, natural
Female Unions Material 1/2" to 1" – steel, electrogalvanized with chromate treatment; 1 1/4" to 4" – Feraloy® iron alloy, electrogalvanized with aluminum acrylic paint
Connection Styles Male on both ends or 1 male and 1 female end


  • Rugged design to withstand explosive pressure (Class I)
  • Mechanical abuse
  • Liquid-tight for wet locations
  • For use where lack of space makes use of rigid conduit difficult
  • Wire duct liner in sizes 1/2" to 2" insulates against grounds and burn through from short circuit
  • No bonding jumpers required, metallic braid provides continuous electrical path
  • ECGJH combination has two threaded male end fittings
  • ECLK combination has one female union and one male threaded end fitting