Hydraulic Products, Classic Range - CEJN Unique Profile

Series 325

  • One-hand operated
  • Small external dimensions
  • Low connection force

The Series 325 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 324 for an all brass version and Series 326 for a stainless steel version.

Series 325
Technical data
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Brass/steel (chrome plated)
Material nipple: Hardened steel (zinc passivation)
Material seal: Nitrile (NBR), other sealing materials on request
Max. working pressure connected: 250 bar (3625 PSI)
Max. working pressure disconnected: 100 bar (1450 PSI)
Min. burst pressure connected: 1000 bar (14503 PSI)
Min. burst pressure disconnected: 1000 bar (14503 PSI)
Connectability: Without pressure
Disconnection under pressure: Not allowed

Flow capacity is measured at 0.4 MPa pressure drop.

Pressure drop chart
Pressure drop, MPa
Series 325
Flow, l/min. (GPM UK)
Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 325 1202103251202G 1/4"56.323.421NBR
 10 325 14021032514021/4" NPT56.323.421NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 325 6202103256202G 1/4"52.123.120NBR
 10 325 64021032564021/4" NPT52.123.120NBR


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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