Hydraulic Products, X65 Range - Premium ISO 16028 Flat-Face Quick Couplings

Series 165, DN 5 Steel

  • Flat-Face design
  • One-hand operation
  • Extra locking security


CEJN Series 165 is a Flat-Face quick-connect coupling for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. Series 165 couplings require only one hand for operation, making connection and disconnection fast and easy. Series 165 couplings feature manual security locking as added protection against involuntary disconnection.


The couplings and nipples are also available in six larger sizes; DN 6.3 (Series 265), DN 10 (Series 365), DN 12.5 (Series 565), DN 16 (Series 665), DN 19 (Series 765) and DN 25 (Series 065).

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 165 1201 101651201G 1/8"472219NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 165 6201 101656201G 1/8"36.319.317NBR


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.
Technical data
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Steel (zinc passivation)
Material nipple: Hardened steel (zinc passivation)
Material seal: Nitrile (NBR/PUR, other sealing materials on request)
Connectability: Only limited by operator strength
Disconnection under pressure: Not allowed
Max. working pressure connected: 720 bar (10442 PSI)
Max. working pressure disconnected: 720 bar (10442 PSI)
Min. burst pressure connected: 1400 bar (20305 PSI)
Min. burst pressure disconnected: 1400 bar (20305 PSI)

Rated flow is measured at 14.5 pressure drop.

Pressure drop chart
Pressure drop, PSI Series 165, DN 5 Steel Flow, GPM

Available files for download

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