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CEJN® Series 345 Couplings

  • Series 345 is a double shut-off series with both a valved coupling and nipple. The specially designed valve provides an extremely high rate of airflow. This series is well-suited for breathing air diving applications and for applications that demand a closed system when disconnected, such as surface air diving. Like most other CEJN breathing air couplings, Series 345 offers one-hand-operated connection, an integrated safety feature that guards against unintentional disconnection, a grip-friendly locking sleeve, and a broad connection range.
Technical Data Summary
Specification Details  
Nominal Flow Diameter 6.2mm
Coupling Material Nickel Plated Brass
Nipple Material Nickel Plated Brass
Maximum Working Pressure Connected  
  35 bar
Maximum Working Pressure Disconnected  
  140 bar
Standard Flow Rate  
  1100 l/min (38.8 CFM)
Temperature Range  
  -30°C to +100°C (-22°F to +212°F)

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

    • Grid List
    CEJN® Series 345 Female Coupling
    CEJN® Series 345 Female Coupling CEJN-103451202
    CEJN® Series 345 Hose Tail Coupling
    CEJN® Series 345 Hose Tail Coupling CEJN-103451004
    CEJN® Series 345 Male Adaptor
    CEJN® Series 345 Male Adaptor CEJN-103456252
    CEJN® Series 345 Female Adaptor
    CEJN® Series 345 Female Adaptor CEJN-103456202

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