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

Series 565, DN12.5 Steel

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

CEJN Series 565 is a Flat-Face quick-connect coupling according to and exceeding the ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. Series 565 couplings require only one hand for operation, making connection and disconnection fast and easy. Dust caps are available as accessories for both the coupling and nipple when disconnected to prevent dust and debris from entering the system. Series 565 couplings feature manual security locking as added protection against involuntary disconnection.


The couplings and nipples are also available in other sizes; DN 5 (Series 165), DN 6.3 (Series 265), DN 10 (Series 365), DN 16 (Series 665), DN 19 (Series 765), DN 25 (065). For a stainless steel version see Series 566. Nipples with pressure eliminator available under Series 564.

Series 565, DN12.5 Steel
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)
Max. working pressure connected: 400 bar (5801 PSI)
Max. working pressure disconnected: 400 bar (5801 PSI)
Min. burst pressure connected: 1200 bar (17404 PSI)
Min. burst pressure disconnected: 1200 bar (17404 PSI)
Connectability: Only limited by operator strength
Disconnection under pressure: Not allowed
Interchangeable with: All brands dimensionally interchanging with ISO16028

Rated flow is measured at 0.1 MPa pressure drop.

Pressure drop chart
Series 565, DN12.5 Steel
Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 565 1105105651105Rc 1/2" (BSPT)74.838.232NBR
 10 565 1205105651205G 1/2" (BSP)74.838.232NBR
 10 565 1215105651215G 1/2"74.838.232FPM
 10 565 1207105651207G 3/4" (BSP)76.338.233NBR
 10 565 1217105651217G 3/4"76.338.233FPM
 10 565 14051056514051/2" NPT74.838.232NBR
 10 565 16051056516053/4"-16 UNF (1/2" SAE)74.938.232NBR
 10 565 1295105651295G 1/2" JIS ORB74.937.832NBR
 10 565 16061056516067/8" - 14 UNF (5/8" SAE)----
 10 565 16071056516071 1/16"-12 UN (SAE 3/4")--38NBR
Male thread 10 565 1554105651554M18x1.5 12L74.938.232NBR
 10 565 1555105651555M22x1.5 15L75.938.232NBR
 10 565 1557105651557M18x1.5 12LS bulkhead99.938.232.24NBR
 10 565 1558105651558M22x1.5 15LS bulkhead101.938.232.30NBR
 10 565 175610565175613/16"-16 ORFS bulkhead10538.232.30NBR
 10 565 17581056517581"-14 ORFS bulkhead107.940.536NBR


Coupling for Panel mounting Part No. Connection Length Diameter Hexagon Seal
Female thread 10 565 1285105651285G 1/2" (BSP)74.838.232NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 565 6105105656105Rc 1/2" (BSPT)71.435.932NBR/PUR
 10 565 6205105656205G 1/2" (BSP)71.435.732NBR/PUR
 10 565 6215105656215G 1/2"71.435.732FPM
 10 565 6207105656207G 3/4" (BSP)72.936.733NBR/PUR
 10 565 6217105656217G 3/4"72.936.733FPM
 10 565 64051056564051/2" NPT71.535.932NBR/PUR
 10 565 66051056566053/4"-16 UNF (1/2" SAE)71.535.732NBR/PUR
 10 565 6296105656296G 1/2" JIS ORB71.535.732NBR/PUR
 10 565 66061056566067/8" - 14 UNF (5/8" SAE)---NBR/PUR
 10 565 66071056566071 1/16"-12 UN (SAE 3/4")---NBR/PUR
Male thread 10 565 6554105656554M18x1.5 12L71.536.232NBR/PUR
 10 565 6555105656555M22x1.5 15L72.536.232NBR/PUR
 10 565 6557105656557M18x1.5 12LS bulkhead96.536.232.24NBR/PUR
 10 565 6558105656558M22x1.5 15LS bulkhead98.536.232.30NBR/PUR
 10 565 675610565675613/16"-16 ORFS bulkhead101.535.732.30NBR/PUR
 10 565 67581056567581"-14 ORFS bulkhead104.540.536NBR/PUR


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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