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CEJN® Series 303 Couplings

  • Series 303 couplings offer high-flow capacity and are insensitive to vibrations. A wide range of connections is included in the Series, which is also suitable for vacuum service. Male threads on the couplings and nipples feature pre-applied thread sealant.
Technical Data Summary
Specification Details  
Nominal Flow Diameter 6.5mm
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  
  1450 l/min (51.2 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).

    • Grid List
    CEJN® Series 303 Hose Tail Coupling
    CEJN® Series 303 Hose Tail Coupling CEJN-103031002
    RRP: £30.62
    CEJN® Series 303 Male Coupling BSPT
    CEJN® Series 303 Male Coupling BSPT CEJN-103031152
    RRP: £30.62
    CEJN® Series 303 Female Coupling BSPP
    CEJN® Series 303 Female Coupling BSPP CEJN-103031202
    RRP: £30.62
    CEJN® Series 303 Stream-Line Coupling
    CEJN® Series 303 Stream-Line Coupling CEJN-103031060
    RRP: £37.28
    CEJN® Series 303 Hose Tail Adaptor
    CEJN® Series 303 Hose Tail Adaptor CEJN-103035002
    RRP: £5.22
    CEJN® Series 303 Male Adaptor BSPT
    CEJN® Series 303 Male Adaptor BSPT CEJN-103035151
    RRP: £4.80
    CEJN® Series 303 Female Adaptor BSPP
    CEJN® Series 303 Female Adaptor BSPP CEJN-103035201
    RRP: £5.80
    CEJN® Series 303 Stream-Line Adaptor
    CEJN® Series 303 Stream-Line Adaptor CEJN-103035060
    RRP: £21.06
    CEJN® Series 303 Hose Tail Anti-Whip Adaptor
    CEJN® Series 303 Hose Tail Anti-Whip Adaptor CEJN-103038002
    RRP: £12.17
    CEJN® Series 303 Male Anti-Whip Adaptor BSPT
    CEJN® Series 303 Male Anti-Whip Adaptor BSPT CEJN-103038152
    RRP: £12.17
    CEJN® Series 303 Stream-Line Anti-Whip Adaptor
    CEJN® Series 303 Stream-Line Anti-Whip Adaptor CEJN-103038060
    RRP: £12.17

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