Series 605

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Hydraulic Products

Classic Couplings & Nipples

Series 605

  • One-hand operation
  • Small external dimensions
  • Dust cap included

The Series 605 is part of CEJN's Classic Range of hydraulic couplings that offer numerous advantages. The range is frequently used in demanding applications where conventional couplings do not meet the requirements. The low connection force combined with high flow and small external dimensions provide convenient and trouble free service.


Please refer to the Fluid range Series 604 for an all brass version and Series 606 for a stainless steel version.

Technical data
Nominal flow diameter: 1/2" (14.5 mm)
Flow capacity: 44.1 GPM (167 l/min)
Max. working pressure connected: 4640 PSI (320 bar)
Max. working pressure disconnected: 1450 PSI (100 bar)
Min. burst pressure connected: 14500 PSI (1000 bar)
Min. burst pressure disconnected: 14500 PSI (1000 bar)
Temperature range: -22°F — +212°F (-30°C — +100°C)
Material coupling: Steel (zinc passivation)
Material nipple: Hardened steel (zinc passivation)
Material seal: Nitrile (NBR), other sealing materials on request
Connectability: Without pressure
Disconnection under pressure: Not allowed

Flow capacity is measured at 58 PSI pressure drop.

Pressure drop chart

Pressure drop, PSI

Flow, GPM
Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 106051201G 3/4"85.447.441NBR
 1060514013/4" NPT85.447.441NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 106056201G 3/4"804536NBR
 1060564013/4" NPT804536NBR


Thread connections are listed according to ISO Standards. All measurements are in mm. Check with an authorized CEJN distributor for availability and prices.