pascalnest

Valve control

Tandem center · pump unloading

The tandem center connects P to T in neutral while holding A and B. Set the cylinder load to zero to study unloaded holding and compare pump power with extend.

Tandem center · pump unloading hydraulic circuit schematic
Tandem center · pump unloading · A working example from the PascalNest editor.

Explore this circuit

This example contains 7 components and 9 connections. Its capture lasts 6 seconds.

  1. Open the example chooser and select this circuit. Your current drawing is kept until you choose to replace it.
  2. Press Run simulation and follow playback. Use Pause and the time slider to inspect a recorded instant.
  3. Choose a component and a measurement in the scope. Change one parameter and run again to compare the result.
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What to observe

In neutral, the tandem center routes pump flow from P to T while blocking A and B. The unloaded cylinder holds its position. Compare pump power with the valve set to Extend.

Generic component models for learning and preliminary design. Read the simulation warnings and exported report limits.