Load-holding capability is superb in our motion control HICs (Hydraulic Integrated Circuit). Including counterbalance and pilot-operated check valves, these off-the-shelf HICs are high on integrated functionality

We offer flow and pressure capabilities of 1-190 l/min [0.3-50 US gal/min] and 415 bar [6,000 psi], respectively.

For more detailed technical information, view our: 

• Quick reference guide Dual Pilot Operated Check Valves (PDF 2 MB), Dual Counterbalance Valves (PDF 1 MB)
• Circuit examples Dual Pilot Operated Check Valves (PDF 2 MB), Dual Counterbalance Valves (PDF 1 MB)

Dual Pilot Operated Check Valves

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• Catalog HICs that allow free flow in one direction, block flow in the opposite direction, and are piloted from a third port to open the blocked direction.
• 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.
• Flow range: 85 l/min [22 US gal/min].
• Pressure capability up to 210 bar [3,000 psi].

• Catalog HICs that allow modulated flow in one direction, block flow in the opposite direction, and are piloted from a third port to open the blocked direction.
• Available in hydraulic vent or atmospheric vent designs, with an optional make-up check valve design.
• 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: 20-115 l/min [5-30 US gal/min].
• Pressure capability up to 210 bar [3,000 psi].