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Series 566, 1/2" / DN12.5 Stainless Steel

  • Flat-Face design    
  • Stainless steel design
  • One-hand operated

    LEH Series 566 is a Flat-Face quick-connect coupling dimensionally in accordance to ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. The stainless steel design makes it extra sturdy to fit applications in extreme environments. Series 566 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 to prevent dust and debris from entering the system. Series 566 couplings also feature manual security locking as added protection against involuntary disconnection.

    he couplings and nipples are also available in three larger sizes; 1/4" / DN 6.3 (Series 266), 3/8" / DN 10 (Series 366), 3/4" / DN 19 (Series 766). For a steel version see Series 565. Nipples with pressure eliminator available under Series 564.    
Technical data
Nominal flow diameter: (1/2") 12.5 mm
Rated flow: 47.2 l/min (10.4 GPM UK)
Max. working pressure connected: 25.0 MPa
Max. working pressure disconnected: 25.0 MPa
Min. burst pressure connected: 100.0 MPa
Min. burst pressure disconnected: 100.0 MPa
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), other sealing materials on request
Connectability: Without pressure
Disconnection under pressure: Not allowed

Rated flow is measured at 0.1 MPa pressure drop.


Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 105661215 G 1/2" 74.8 38.2 32 FPM
105661217 G 3/4" 76.3 38.2 33 FPM

Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 105666217 G 3/4" 72.9 36.7 33 FPM
105666215 G 1/2" 71.4 35.7 32 FPM