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  Counterbalance Valves  
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Our counterbalance valves keep your vehicle’s load under smooth control - even in the event of a hydraulic failure or leakage. Thanks to their modulated response to pilot pressure signals, these valves always put safety first.

We offer flow and pressure capabilities of 20-190 l/min [5-50 US gal/min] and up to 350 bar [5,080 psi], respectively.

For more detailed technical information, view our quick reference guide (PDF 9 MB) and circuit examples (PDF 1 MB).

 

 

Counterbalance Valves

Hydraulic Vent

Hydraulic Vent Example Schematic

Hydraulic Vent Example Schematic
  • Integrated design that allows modulated flow in one direction, blocks flow in the opposite direction, but can be piloted from a third port to open the blocked direction.
  • Standard hydraulic vent, where the spring is vented to tank.
  • Used to prevent a load from dropping due to a hose or tube failure or to avoid load drifting due to a directional control valve spool leakage.
  • Smooth, modulated motion when the load is in a lowering or run-away mode or the directional control valve is suddenly closed.
  • Flow range: 20-190 l/min [5-50 US gal/min].
  • Pressure capability up to 350 bar [5,080 psi].

Atmospheric Vent

Atmospheric Vent Example Schematic

Atmospheric Vent Example Schematic
  • Integrated design that allows modulated flow in one direction, blocks flow in the opposite direction, but can be piloted from a third port to open the blocked direction.
  • Atmospheric vent, where the spring is vented to atmosphere when the tank pressure is high and pressure setting critical.
  • Used to prevent a load from dropping due to a hose or tube failure or to avoid load drifting due to a directional control valve spool leakage.
  • Smooth, modulated motion when the load is in a lowering or run-away mode or the directional control valve is suddenly closed.
  • Flow range: 60-140 l/min [16-37 US gal/min].
  • Pressure capability up to 350 bar [5,080 psi].
       






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