Maximizing the life of a valve in fluid power systems (hydraulic or pneumatic) involves a combination of proper design, maintenance, and operating practices. The optimal use and choice of valves is imperative to getting the most productivity out of your operation. The following are a number of key strategies:

 

1. Proper Filtration and Cleanliness

• Use high-quality filters to remove contaminants from the fluid.
• Maintain cleanliness of the entire system (fluid, reservoir, hoses, etc.).
• Regularly replace filters and monitor contamination levels.
• Contamination is the #1 cause of valve failure.

 

2. Fluid Quality and Compatibility

• Use the correct type of fluid as specified by the manufacturer.
• Maintain optimal fluid viscosity (not too thick or too thin).
• Avoid fluid degradation: monitor for oxidation, water contamination, or overheating.

 

3. Operating Within Specified Limits

• Make sure pressure, flow, and temperature remain within rated specifications.
• Avoid pressure spikes (use accumulators, pressure relief valves).
• Prevent cavitation and fluid hammer by managing valve closing speeds and pump behavior.

 

4. Proper Installation

• Align components correctly to avoid mechanical stress.
• Use correct torque when tightening fittings.
• Ensure vibration isolation where necessary.

 

5. Regular Maintenance and Inspection

• Monitor leakage, unusual noise, or sluggish operation.
• Check for seal wear, corrosion, or damage.
• Cycle test valves periodically to ensure functionality.

 

6. Use the Right Valve for the Job

• Choose valves sized appropriately for the application.
• Select materials resistant to the specific fluids and environment.
• Use pilot-operated or proportional valves where precision and durability are needed.

 

7. Proper System Design

• Avoid deadheading and ensure proper flow paths.
• Minimize the number of starts/stops and pressure cycles.
• Use soft start circuits or bypass valves when necessary.

 

Following these best practices will not only improve the performance of your valves, they’ll also increase the productivity throughout your operation.