Conduit Seals
EYS and EZS IECEx Conduit Sealing Fittings
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EYS and EZS IECEx Conduit Sealing Fittings

Crouse-Hinds series sealing fittings designed and certified for IEC hazardous areas.  EYS, EYSA and EZS sealing fittings restrict the passage of gases, vapors or flames from one portion of the electrical installation to another, limit explosions to the sealed off enclosure, and limit pre-compression or “pressure piling” in conduit systems.

EYS and EYSA sealing fittings are available for installation in either vertical only or in both horizontal or vertical positions. 

EZS sealing fittings are designed for installation at any angle; the covers with opening for sealing compound can be properly positioned to accept the compound.

Certifications and compliances

EYS and EZS:

  • Ex II 2 G EEx d IIC
  • EC-Type examination certificate: LOM 03 ATEX 2108
  • IP67 according to EN 60529


  • Gas group: IIC
  • IEC Ex TSA07.0015-1
  • Type of protection: Ex d, DIP A21, T60ºC, IP66
  • Degree of protection: IP66

Design features

  • Minimum turning radius
  • Large openings with threaded closures to provide easy access to conduit hubs for making dams
  • Integral bushings in conduit hubs to protect conductor insulation from damage
  • Taper tapped hubs to ensure ground continuity

Standard materials

EYS and EZS:

  • Bodies, plugs and nipples – light alloy, natural finish


  • Bodies – copper-free aluminum
  • Removable nipples and plugs – brass