CEJN® Series 300 eSafe Couplings

  • Series 300 couplings offer high flow and require only a low connection force, which ensures a safe working environment. Male threads on the couplings and nipples feature pre-applied thread sealant.
  • The Series 300 vented safety version is disconnected in two stages in order to vent the coupling and minimize the risk of sudden component separation, which has the potential to cause operator injury. Full automatic operation ensures easy handling.
  • The vented safety version complies with ISO Standard 4414 and EN 983.

Technical Data Summary
Specification Details  
Nominal Flow Diameter 5mm
Coupling Material Zinc Plated Steel/ Brass
Nipple Material Hardened Zinc Plated Steel
Maximum Working Pressure  
  16 bar
Maximum Burst Pressure  
  140 bar
Standard Flow Rate  
  1050 l/min (37.7 CFM)
Temperature Range  
  -20°c to + 100°c


  • Flow capacity is measured at 6 bar (87 psi) inlet pressure, and pressure drop at 0.5 bar (7 psi).