CEJN® Series 665 Couplings

CEJN® Series 665 is a Flat-Face quick-connect coupling according to and exceeding the ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. Series 665 couplings require only one hand for operation, making connection and disconnection fast and easy. Dust caps are available as accessories for both the coupling and nipple when disconnected to prevent dust and debris from entering the system. Series 665 couplings feature manual security locking as added protection against involuntary disconnection.

  • The couplings and nipples are also available in other sizes; DN 5 (Series 165), DN 6.3 (Series 265), DN 10 (Series 365), DN 12.5 (Series 565), DN 19 (Series 765), DN 25 (Series 065). Nipples with pressure eliminator available under Series 664.

      Technical Data Summary
      Specification Details  
      Nominal Flow Diameter 16mm
      Coupling Material Steel (zinc passivation)
      Nipple Material Hardened steel (zinc passivation)
      Seal Material Nitrile
      Maximum Working Pressure Connected  
      400 bar
      Maximum Working Pressure Disconnected  
      400 bar
      Maximum Burst Pressure Connected  
      1200 bar
      Maximum Burst Pressure Disconnected  
      1200 bar
      Standard Flow Rate  
      139 l/min (36.7 GPM UK)
      Temperature Range  
        -30°C to +100°C

      • Interchangeable with all brands that conform to the dimensions of ISO 16028

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