CEJN® Series 344 Couplings

  • Series 344 is specially designed for applications with low-weight requirements. The shorter design of the coupling gives it a significantly lower weight than other couplings with the same performance. Series 344 is recommended primarily for breathing air fire fighting applications, but is also well suited for diving equipment. Its specially designed valve provides an extremely high rate of airflow. Like most other CEJN breathing air couplings, this series 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 7.4mm
Coupling Material Nickel Plated Brass
Nipple Material Nickel Plated Brass
Maximum Working Pressure  
35 bar
Maximum Burst Pressure  
140 bar
Standard Flow Rate  
1950 l/min (68.8 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).

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    CEJN® Series 344 Male Coupling BSPT
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    CEJN® Series 344 Male Coupling BSPP
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    CEJN® Series 344 Female Coupling
    CEJN® Series 344 Female Coupling
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    CEJN® Series 344 Hose Tail Coupling
    CEJN® Series 344 Hose Tail Coupling
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    CEJN® Series 344 Male Adaptor
    CEJN® Series 344 Male Adaptor
    Quick Buy
    CEJN® Series 344 Female Adaptor
    CEJN® Series 344 Female Adaptor
    Quick Buy
    CEJN® Series 344 Hose Tail Adaptor
    CEJN® Series 344 Hose Tail Adaptor
    Quick Buy

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