In modern pneumatic systems, air preparation is a crucial step to ensure clean, regulated, and lubricated air reaches your tools and equipment. Typically, this is handled by an FRL unit – a compact assembly that combines a Filter, Regulator, and Lubricator in one convenient package. However, there are scenarios where using individual pneumatic components instead of a combined FRL unit is the more practical and efficient choice.

In this blog post, we’ll explore when it’s better to opt for separate filters, regulators, and lubricators, along with the advantages of such a setup in specific industrial environments.

What Are Individual Pneumatic Components?

Individual pneumatic components refer to separate units for filtration, pressure regulation, and lubrication. Rather than installing a single FRL unit, engineers choose and place each element based on system requirements.

This offers a high level of customization, allowing better performance control and maintenance flexibility. But the key question is – when does this setup make more sense than using an FRL unit?

When to Use Individual Pneumatic Components

1. When Customization is Critical

In highly specialized systems, airflow requirements vary drastically between stages. For example, a regulator may need to be placed after certain valves, or lubrication may only be needed for select actuators. Using individual components allows tailored placement that suits the unique airflow path of your system.

2. When Lubrication is Not Always Required

Some tools, especially in industries like pharmaceutical, electronics, or food processing, require oil-free air to prevent contamination. In such cases, a lubricator may not be necessary at all. Instead of installing a standard FRL and bypassing the lubricator, it’s cleaner and more efficient to use only a filter and regulator.

3. For Easier Maintenance and Replacement

In applications where frequent maintenance is required, using individual components makes it easier to replace or clean just one element (e.g., the filter) without disturbing the others. This is particularly helpful in dust-heavy or moisture-prone environments where filters may need more frequent replacement.

4. For Space-Specific Layouts

Sometimes the layout of a system or machine requires components to be installed in non-linear or spaced-out arrangements. A compact FRL unit may not fit or may not allow optimal tubing paths. Individual components provide greater design flexibility.

5. When Cost Control Is a Priority

In some cases, especially for low-use or isolated tools, installing only a filter or a regulator may be enough. This can be more cost-effective than purchasing a complete FRL unit for every section.

🔗 Related Insight: Want a complete comparison of both setups?

Read our detailed guide on FRL Units vs. Individual Pneumatic Components: Pros and Cons to explore which setup works best in different industrial settings.

Use Case Example

A manufacturing plant running both precision pneumatic grippers and heavy-duty air tools may require different air quality and pressure settings. In such a scenario:

• Grippers may only need a filter and regulator, and oil might damage their precision.

• Air tools may need all three components, including lubrication.

Using individual components here ensures each machine receives exactly what it needs without waste or compromise.

Expert Tip

Always assess your application needs before choosing between a combined FRL and individual components. Look into:

• Air quality requirements

• Space constraints

• Maintenance cycles

• Industry standards (especially in pharma and food industries)

🔗 Related Reading: Still not sure what an FRL or air prep unit does?

Check out our blog What is an Air Preparation Unit?: A Complete Guide for a deep dive into how these systems work and their role in pneumatic efficiency.

Conclusion

While FRL units offer convenience and simplicity, individual pneumatic components provide unmatched customization and flexibility – especially in systems where space, function, and performance must be tightly controlled.

Whether you’re working on a specialized application or trying to optimize maintenance, choosing individual filters, regulators, and lubricators may be the smarter route.