Series 665, 5/8" / DN16 Steel

  • Flat-Face design    
  • One-hand operated
  • Extra security locking

    LEH Series 665 is a Flat-Face quick-connect coupling according to and exceeding the ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. Series 665 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 when disconnected to prevent dust and debris from entering the system. Series 665 couplings feature manual security locking as added protection against involuntary disconnection.

    The couplings and nipples are also available in other sizes; 3/16" / DN 5 (Series 165), 1/4" / DN 6.3 (Series 265), 3/8" / DN 10 (Series 365), 1/2" / DN 12.5 (Series 565), 3/4" / DN 19 (Series 765), 1" / DN 25 (Series 065). Nipples with pressure eliminator available under Series 664.    
Technical data
Nominal flow diameter: (5/8") 16 mm
Rated flow: 74 l/min (16.3 GPM UK)
Max. working pressure connected: 40.0 MPa
Max. working pressure disconnected: 40.0 MPa
Min. burst pressure connected: 120.0 MPa
Min. burst pressure disconnected: 120.0 MPa
Static pressure applications: Approved to max. working pressure
Dynamic pressure applications: Max. working pressure 25 MPa according to ISO 16028
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

Rated flow is measured at 0.1 MPa pressure drop

 

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 106651201 G 3/4" 79.8 41.2 36 NBR
106651211 G 3/4" 79.8 41.2 36 FPM
106651401 3/4" NPT 79.8 41.2 36 NBR
106651601 1 1/16"-12 ORB 79.8 41.2 38 NBR


Push-pull Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 106651281 G 3/4" 79.8 41.2 36 NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 106656201 G 3/4" 74.9 39.2 36 PUR
106656211 G 3/4" 74.9 39.2 36 FPM
106656401 3/4" NPT 74.9 39.2 36 PUR
106656601 1 1/16"-12 ORB 74.9 41.2 38 NBR