Hydraulic Products, ISO B Steel Couplings & Nipples

Series 675, DN20

  • ISO B Standard
  • Sturdy design
  • Working pressure up to 3340 PSI (230 bar)


CEJN Series 675 features quick-connect couplings and nipples manufactured according to ISO Standard 7241-1 B. The solid design makes them particularly suitable for strenuous applications in the iron, steel, oil, food and automotive industry.


The couplings and nipples are also available in four other sizes; DN 6.3 (Series 375), DN 10 (Series 475), DN 12.5 (Series 575), DN 25 (Series 775). For a stainless steel version see Series 676.

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 675 1201 106751201G 3/4"90.15036NBR
 10 675 1401 1067514013/4" NPT90.15036NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 675 6201 106756201G 3/4"5538.536NBR
 10 675 6401 1067564013/4" NPT5538.536NBR


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
Nominal flow diameter: 20 mm (3/4")
Max. Suggested Flow: 148 l/min ( GPM UK)
Max. working pressure connected: 23.0 MPa
Max. working pressure disconnected: 23.0 MPa
Min. burst pressure connected: 100.0 MPa
Min. burst pressure disconnected: 100.0 MPa
Temperature range: -20°C — +100°C (-4°F — +212°F)
Material coupling: Steel (zinc plating)
Material nipple: Hardened steel (zinc plating)
Material seal: Nitrile (NBR)
Connectability: Without pressure
Disconnection under pressure: Not allowed
Pressure drop chart
Pressure drop, PSI Series 675, DN20 Flow, GPM

Available files for download

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