In hydraulics, safety and reliability are everything. One wrong move can damage equipment, cause costly downtime, or put someone at risk. That’s why the relief valve, your system’s pressure safeguard, matters.

A relief valve protects your gear and your crew. It opens when pressure gets too high, letting fluid escape and preventing serious damage. Setting it right is not just a good habit, it’s essential.

Step 1: Know Your System 

Before adjusting anything, get to know your setup:

• Identify key components like the pump, valve bank, and actuators
• Check the manufacturer’s maximum pressure rating
• Confirm the recommended relief valve setting range

Step 2: Locate the Relief Valve 

You’ll usually find it near the pump or valve block. If in doubt, check the system drawing or ask a qualified tech.

Step 3: Confirm Operating Pressure 

Start the system and let it reach normal operating pressure. Watch the gauge. Once it’s stable, that’s your baseline.

Step 4: Adjust Gradually 

Use the right tool and adjust in small steps:

• Turn in small increments
• Watch the pressure gauge
• Increase or decrease slowly. Never rush it

Step 5: Monitor System Behaviour 

Stay alert for anything unusual:

• Strange noises
• Fluid leaks
• Sudden pressure drops

If anything seems off, stop and investigate.

Step 6: Test and Verify 

Once adjusted:

• Slowly raise the pressure
• Confirm the relief valve opens at the correct point
• Make sure the operation is smooth with no odd behaviour

Safety Always Comes First Hydraulics means high pressure. Stay safe:

• Always wear PPE. Gloves, glasses, and protective gear
• Depressurise the system fully before making changes
• Get trained. Don’t guess

APT Training Tip
Want hands-on experience? Our short course teaches you how to set, test and troubleshoot relief valves using real world rigs. It’s the same training used by crews on major mine and construction sites.

Correct valve settings protect both people and machines. Take the time to do it right. Follow the specs. Never cut corners. A properly set relief valve means your system runs safer, longer, and better.

Want to feel more confident working under pressure? Contact us today