CEJN® Series 218 Couplings

  • The Series 218 is a CEJN original that, despite very small outside dimensions, gives an extremely high flow. Both the patented sealing design and non-drip connection and disconnection are standard on CEJN’s High-Pressure range. The coupling also has a safety ring for the locking sleeve to prevent accidental disconnection. Plastic dust caps are standard on both coupling and nipple. The Series is an allround coupling that works well in most applications, even if it is mainly recommended where large flow rates are required.

Technical Data Summary
Specification Details  
Nominal Flow Diameter 4.5mm
Coupling Material Hardened, zinc chromate plated steel
Nipple Material Hardened, zinc chromate plated steel
Maximum Working Pressure  
100.0 MPa
Maximum Burst Pressure  
280.0 MPa
Standard Flow Rate  
15.0 l/min (3.3 GPM UK)
Temperature Range  
  -30°C — +100°C (-22°F — +212°F)


  • Flow capacity is measured at 0.4 MPa pressure drop.

    • CEJN® Series 218 Female Coupling BSP
    CEJN® Series 218 Female Coupling BSP
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    CEJN® Series 218 Female Coupling NPT
    CEJN® Series 218 Female Coupling NPT
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    coming_soon
    CEJN® Series 218 Female Adaptor BSP
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    coming_soon
    CEJN® Series 218 Female Adaptor NPT
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