Fluid Products, Classic Couplings & nipples

Series 412

  • One-hand operated
  • Extremely high-flow capacity
  • Suitable for high-pressure water applications

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 valveless couplings and valveless 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).

Series 412
Technical data
Nominal flow diameter: 10.4 mm (13/32")
Water flow (single shut-off): 122 l/min (26.8 GPM UK)
Water flow (straight through): 167 l/min (36.7 GPM UK)
Max. working pressure: 200 bar (2900 PSI)
Min. burst pressure: 600 bar (8702 PSI)
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Nickel-plated brass/steel
Material nipple: Hardened steel, chemical nickel-plated/zinc-plated
Kv (single shut-off): 3.86
Cv (single shut-off): 4.49
Kv (straight through): 5.01
Cv (straight through): 5.83

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

Fluid Flow
Pressure drop, bar (PSI)
Series 412
Flow, l/min. (GPM UK)
Black: Single shut-off, Grey: Straight through
Couplings Part No. Connection Seal Length Diameter Hexagon  
Male thread with 60º sealing cone 10 412 0255104120255G 1/2"NBR50.127.724 
Male thread 10 412 04551041204551/2" NPTNBR65.727.724 
Female thread 10 412 04051041204051/2" NPTNBR63.328.925 
 10 412 1205104121205G 1/2"NBR63.328.925 
 10 412 0205104120205G 1/2"NBR63.328.925 

Nipples Part No. Connection Seal Length Diameter Hexagon Remark
Male thread with 60º sealing cone 10 412 5265104125265G 1/2"-42.325.422Hardened and chemical nickel-plated steel
Female thread 10 412 5205104125205G 1/2"-4431.227Hardened and chemical nickel-plated steel
 10 410 5204104105204G 3/8"-3823.120 
 10 410 5205104105205G 1/2"-43.531.227 
Male thread 10 410 5154104105154R 3/8"-4119.617 
 10 410 5155104105155R 1/2"-47.525.422 

Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards. All measurements are in mm.

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