MS Series Filter Regulator Lubricator (FRL)

Festo MS Series Filter Regulator Lubricator (FRL)

Festo’s MS Series suited for compressed-air preparation offers a complete concept for ensuring clean, regulated and lubricated air supply in automation systems. The modular design allows you to build individual service units or pre-assembled combinations, enabling tailored solutions for everything from standard applications to high-performance machine installations.

Design & Functionality
These units combine the three core functions of air preparation: filtration (to remove condensate, particles and oil aerosols), pressure regulation (to maintain stable downstream pressure) and lubrication (to add a precisely dosed oil mist when required). The housings are cast aluminium for durability, bowls are metal or polycarbonate with a bowl-guard for safety, and the modules adhere to a standard grid size so they can be easily mounted or replaced.

Total Crossed Beams
The MS Series covers five grid sizes (MS2, MS4, MS6, MS9, MS12) offering very high nominal flow rates while compacting the footprint of installation. 

Beam Pitch Options
A wide selection of variants is available: different port/thread sizes (e.g., G¼, G½, G1, G2), two filtration grades (5 µm or 40 µm), manual/automatic condensate drains, and compatibility with UL/ATEX certification options. These allow optimization for space-sensitive layouts, high-flow demands, or harsh environmental conditions. 

⭐ Important: Modular structure means quick maintenance, easy upgrades and minimal system downtime thanks to interchangeable units.

Intrinsic Synchronism
Because all modules share the standardized mounting and connection interfaces, they align precisely and function as an integrated unit. The flow direction, mounting position and module order are defined to ensure correct operation and safety (for example a lubricator should never be upstream of a filter).

Operational Advantages

• Very high nominal flow capacity with low space requirement – ideal for modern machine design. 
• Reliable pressure regulation with low hysteresis and good dynamic control.
• Filtration performance providing air purity classes in line with ISO 8573-1.
• Wide range of mounting, connection and interface options, meaning strong flexibility in system integration.
• Reduced maintenance and service time due to modular and standardized layout.

Applications:
Air preparation in production lines, pneumatic actuation systems, machine tools, packaging machinery, robotics infrastructure, compressed-air distribution networks.

⭐ Important: Choosing an MS Series FRL unit guarantees robust, standardized air supply preparation that supports both machine performance and maintenance efficiency.