Operate this hydraulic reducing valve simulation
Suggested exercises and observations
Select the 'Pressure reducing valve' from drop-down menu 6. Click the question mark (?) and sound button for additional advice.
♦ Increase the mass load to about 50%.
♦ Increase the supply pressure until the load starts to lift.
♦ Observe how the pressure at the supply and cylinder are roughly the sam
♦ Now lower the reducing valve setting until the cylinder starts to fall
♦ Observe how the reducing valve has stopped the flow to the cylinder and the pressure at the cylinder is less than at the valve.
♦ Experiment with other load an supply settings to fully understand how the reducing valve functions.
Experiment 1: Pressure reducing valves are used to maintain a lower pressure downstream than upstream.
Question 1: What happens if the downstream pressure increases above the upstream pressure?
Experiment 2: Pressure reducing valves are available in direct and pilot operated versions.
Question 2: Do all versions require a third drain line?
Experiment 3: In many applications it will be important to know whether a reducing valve is most likely to fails to a high pressure or low pressure condition.
Question 3: Do reducing valves fail to high pressure or low pressure?