Hydraulic Products, Nordic Range / 526 - Stainless steel High Performance Poppet Type Couplings

Series 526, DN12.5

  • Stainless steel (AISI 316)
  • High durability
  • Manual locking ring for extra security

Series 526 is a family of quick couplings for hydraulic systems. A manually-operated locking ring provides extra security against involuntary disconnection. All parts in both couplings and nipples are made of stainless steel for maximum durability in tough applications and environments.


The Series is also available in four other sizes: DN 6.3 (1/4"), DN 10 (3/8"), DN 20 (3/4") and DN 25 (1"). For a steel version see Series 525.

Series 526, DN12.5
Technical data
Temperature range: -20°C — +205°C (-4°F — +401°F)
Material coupling: Stainless steel, AISI 316
Material nipple: Stainless steel, AISI 316
Material seal: Viton (FPM)
Connectability: Without pressure
Disconnection under pressure: Not allowed
Max. working pressure connected: 300 bar (4351 PSI)
Max. working pressure disconnected: 250 bar (3625 PSI)
Min. burst pressure connected: 1200 bar (17404 PSI)
Min. burst pressure disconnected: 1000 bar (14503 PSI)

Rated flow is measured at 0.4 MPa pressure drop.

Pressure drop chart
Series 526, DN12.5
Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 526 1215105261215G 1/2"67.64133FPM


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 526 6215105266215G 1/2"42.52927FPM


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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