FlexiBlok FRL Series from Numatics

The FlexiBlok Series is obsolete. Click here to learn more about the AVENTICS™ 650 Series replacement.

Numatics FlexiBlok FRL SeriesCompressed air quality directly impacts the performance and lifespan of pneumatic equipment. The Numatics FlexiBlok FRL Series is designed to simplify air preparation by combining filtration, pressure regulation, and lubrication into a modular system that can be configured to match the exact needs of your application.

Unlike fixed assemblies, FlexiBlok allows engineers to build a customized air prep solution using interchangeable components like particulate filters, coalescing filters, regulators, lubricators, shut-off valves, and soft-start valves. This flexibility helps reduce installation complexity while improving system reliability. The modular platform supports a broad range of port sizes and flow capacities, making it suitable for everything from compact machinery to larger automation systems.

Common Applications

  • Automated assembly lines
  • Packaging systems
  • Food and beverage equipment
  • Medical and laboratory automation
  • Tire and automotive manufacturing
  • Chemical processing
  • Oil and gas pneumatic controls

Features

FlexiBlok FRL Series Features

Scalable Modular Design

Build only what your application requires. Add or remove components as system demands change without replacing the entire assembly.

High Flow, Low Pressure Drop

Designed to maintain air delivery efficiency while minimizing restrictions that can impact actuator speed and performance.

Multiple Filtration Options

Available with particulate, coalescing, and adsorbing filtration to help remove contaminants, moisture, and oil aerosols.

Simplified Installation

Components connect with minimal hardware and integrated seals to reduce leak points and speed assembly.

Integrated Mounting Flexibility

Built-in mounting features eliminate extra brackets and simplify panel or machine integration.

Compact Footprint

Combines multiple air prep functions into a smaller overall package to save valuable machine space.

Maintenance-Friendly Serviceability

Transparent bowls, quick drains, and modular replacements help reduce downtime during service.

Configurations

FlexiBlok FRL Series Configurations

How to Properly Size and Configure a FlexiBlok FRL

Choosing the right FRL assembly starts with understanding your pneumatic system requirements.

1. Port Size Selection

FlexiBlok assemblies are available from 1/8" to 1" ports, supporting compact control systems up to higher-flow industrial lines.

2. Flow Demand

Flow requirements can range from approximately 30 to 300 SCFM, depending on the series and configuration.

3. Filtration Level

Different contamination levels require different filtration media:

  • Standard particulate filtration for general use
  • Coalescing filters for oil removal
  • Adsorbing filters for high-purity air needs

4. Pressure Stability

Proper regulator selection ensures consistent downstream pressure even during changing flow demands.

5. Lubrication Requirements

Not all pneumatic systems require lubrication. Some modern valves and cylinders are pre-lubricated and may operate better without added oil.

Valin can help evaluate your compressed air quality, downstream components, and application goals to properly configure a FlexiBlok solution.

Why Valin?

Application Support Beyond the Product

Choosing the right FRL is not just about part numbers. It’s about protecting the full pneumatic system.

Valin helps customers engineer air preparation systems that improve uptime, reduce contamination issues, and extend component life. Our team supports:

  • Proper FRL sizing based on CFM and pressure requirements
  • Filter media selection based on air quality goals
  • Integration with valves, cylinders, and manifolds
  • Maintenance recommendations for bowl drains and replacement intervals
  • Full pneumatic system optimization

As a value-added automation partner, Valin helps customers reduce risk before installation and improve long-term performance after startup.

Q & A

FlexiBlok FRL Series Q & A

+What does an FRL do in a pneumatic system?
An FRL prepares compressed air before it reaches downstream equipment. The filter removes contaminants, the regulator controls pressure, and the lubricator introduces oil when required for moving pneumatic components. This improves reliability and protects valves and actuators.
+How do I know what FlexiBlok size I need?
Sizing depends on your port size, flow demand (SCFM), pressure requirements, and allowable pressure drop. Larger systems or higher actuator speeds typically require larger FRL assemblies.
+Do I always need a lubricator in my FRL assembly?
No. Many modern pneumatic components are designed for non-lube operation. Lubricators should only be used when downstream equipment specifically requires continuous lubrication.
+What filtration level should I choose for my compressed air system?
General industrial applications often use particulate filters, while sensitive systems may require coalescing or adsorbing filtration to remove oil mist, moisture, or fine contaminants.
+Can I add components later if my system changes?
Yes. One of the biggest advantages of the FlexiBlok platform is modular expandability. Additional filters, shutoff valves, or regulators can often be added without replacing the original assembly.

Downloads

Download Numatics FlexiBlok FRL Series Catalog

Call us today at (855) 737-4716 to learn more, or fill out our online form, and someone will get back to you.

 
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