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Festo Compressed Air Pressure Regulator - G3/8''

Festo Compressed Air Pressure Regulator - G3/8''

This compressed air pressure regulator offers precise control with a regulation range of 0.5 to 12...

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Product Information

Full details

The Festo Compressed Air Pressure Regulator (LR/3/8-D-MINI) is designed for industrial applications requiring precise and reliable control of pneumatic system pressure. It offers a broad regulation range and a high nominal flow rate, ensuring stable operation for machinery and tools. A key benefit is its lockable design, preventing accidental pressure changes. However, its G3/8 connection may not be compatible with all existing systems without adapters. Key features include its 0.5-12 bar regulation range, 1700 l/min flow rate, dual pressure gauge connections, and robust construction.

All features

Model Part NumberLR-3/8-D-MINI
BrandFesto

Extended Product Information

FAQs

What is the maximum input pressure for this regulator?

The maximum input pressure for the Festo LR/3/8-D-MINI is 16 bar.

What is the regulation range?

The regulation range is from 0.5 bar to 12 bar.

Can I use this regulator with gases other than compressed air?

This regulator is designed specifically for compressed air service only.

How do I prevent pressure from being accidentally changed?

Push down on the adjustment knob after setting the desired pressure. This action locks the knob and prevents accidental adjustments.

What does pressure hysteresis mean?

Pressure hysteresis refers to the small variation in output pressure when the system load changes. This regulator has a low hysteresis of 0.2 bar, meaning it maintains very stable output pressure.

How do I install a pressure gauge?

Pressure gauges can be screwed into the two G3/8 ports located on the sides of the regulator body.

What is the standard flow rate?

The standard nominal flow rate is 1700 liters per minute (l/min).

Troubleshooting

Regulator is not maintaining set pressure.

Check for air leaks at all connections. Ensure the pressure knob is locked. Verify the input pressure is within the specified range and higher than the desired output pressure.

Difficulty adjusting pressure.

Ensure the adjustment knob is not locked. If resistance is felt, check for internal obstructions or damage. Clean any debris from the adjustment mechanism.

Low flow rate from the output.

Confirm the input pressure is adequate. Check for blockages in the downstream pneumatic lines or connected tools. Ensure the regulator is correctly sized for the application's flow demands.

Pressure gauge(s) not functioning.

Verify the gauges are properly connected to the regulator's ports and are functional. Ensure the ports are not blocked.

Pros and Cons

Pros

  • Provides highly accurate and stable air pressure regulation.
  • High nominal flow rate supports demanding pneumatic tools and machinery.
  • Lockable feature enhances safety and prevents unauthorized or accidental adjustments.
  • Dual pressure gauge ports offer greater monitoring flexibility.
  • Robust build quality ensures durability in industrial settings.

Cons

  • G3/8 connection may require adapters for non-standard systems.
  • Maximum input pressure of 16 bar limits its use with extremely high-pressure sources.
  • Operating temperature range, while broad, might be insufficient for extreme environments.
  • Requires separate pressure gauges.

Setup, Compatibility & Care

Setup:

  1. Ensure the air supply is depressurized before installation.
  2. Connect the regulator to the air source using the G3/8 port. Ensure a secure fit to prevent leaks.
  3. If required, install pressure gauges into the designated G3/8 ports on either side of the regulator.
  4. Connect the output of the regulator to your pneumatic system or tool.
  5. Slowly reintroduce air pressure and adjust the desired output pressure using the control knob. Turn clockwise to increase pressure, counter-clockwise to decrease.
  6. Once the desired pressure is set, push down on the control knob to lock it in place.

Compatibility:

  • The regulator is compatible with standard compressed air systems. Ensure your system's pressure does not exceed the maximum input pressure of 16 bar.
  • The G3/8 connection is a standard size, but compatibility with existing fittings should be verified. Adapters may be needed for different thread sizes or types.

Care:

  • Regularly check for air leaks around connections.
  • Inspect the unit periodically for any signs of damage or wear.
  • Keep the operating environment clean to prevent debris from entering the regulator.
  • The regulator is designed for air service only; do not use with other gases or fluids.

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