Series 705

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Hydraulic Products

Classic Range - CEJN Unique Profile

Series 705

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

The Series 705 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 704 for an all brass version and Series 706 for a stainless steel version.

Technical data
Nominal flow diameter: 19 mm (3/4")
Flow capacity: 290 l/min (63.8 GPM UK)
Max. working pressure connected: 32.0 MPa
Max. working pressure disconnected: 10.0 MPa
Min. burst pressure connected: 100.0 MPa
Min. burst pressure disconnected: 100.0 MPa
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), other sealing materials on request
Connectability: Without pressure
Disconnection under pressure: Not allowed

Flow capacity is measured at 0.4 MPa pressure drop.

Pressure drop chart

Pressure drop, MPa

Flow, l/min. (GPM UK)
Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 107051203G 1"9553.146NBR
 1070514031" NPT9553.146NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 107056203G 1"8653.146NBR
 1070564031" NPT87.553.146NBR


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