CEJN® Series 412 Couplings

  • The 200 bar working pressure of Series 412 makes this product line suitable for high-pressure water applications and high-pressure cleaning. Included in the Series are valved and non-valved couplings and non-valved nipples. Only one hand is required for operation. Other sealing materials are available on request.

  • The Series is also available with brass nipples (Series 411), two-way shut-off (Series 414), and stainless steel construction (Series 416). Please refer to the CEJN Pneumatic range for specialized versions of the Series with nickel-plated steel/brass construction and as Vented Safety (Series 410).

  • One hand operated

  • Extremely high-flow capacity

  • Large range of connections

Technical Data Summary
Specification Details  
Nominal Flow Diameter 10.4mm
Coupling Material Nickel-plated brass/steel
Nipple Material Hardened steel, chemical nickel-plated/zinc-plated
Maximum Working Pressure  
200 bar
Maximum Burst Pressure  
600 bar
Water flow (single shut-off)  
122 l/min (26.8 GPM UK)
Water flow  
167 l/min (36.7 GPM UK)
Temperature Range  
  -30°C to +100°C (-22°F to +212°F)


  • Flow capacity is measured at 4 bar (58 PSI) pressure drop.

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