MS4-LFR-1/4-D7-ERM-AS – Festo Filter Regulator

USD $ 101.85

SKU: Festo 529156

Manufacturer Part Number: Festo 529156
Festo Filter Regulator: MS4-LFR-1/4-D7-ERM-AS
OEM Spec Ref 

The Festo MS4-LFR-1/4-D7-ERM-AS Filter Regulator, with MPN 529156, is an advanced pneumatic management tool designed to ensure optimal air quality and pressure regulation within pneumatic systems. This product integrates superior filtration and precision pressure regulation to enhance the efficiency and longevity of industrial applications, ensuring consistent operational performance.

Key Features:

  • Integrated Filtration and Regulation: Combines an efficient filter and a precision regulator in one unit, providing clean and controlled air supply to pneumatic systems.
  • High-Quality Construction: Built to withstand the rigors of industrial environments, this filter regulator features robust materials that promise durability and long-term reliability.
  • Compact and Modular Design: Its compact structure allows for easy installation in space-constrained areas, ensuring seamless integration without compromising functionality.
  • Precise Pressure Control: Engineered for exact control, facilitating quick and precise settings adjustments to maintain optimal operating conditions and system calibration.
  • Universal Compatibility: Can be effortlessly integrated into various pneumatic setups, enhancing system design flexibility with its standardized connections.


  • Enhanced System Efficiency: By delivering regulated and filtered air, it significantly boosts the overall performance and reliability of pneumatic processes.
  • Reduced Operational Costs: Efficient operation minimizes air loss and reduces energy consumption, leading to noticeable cost savings.
  • Increased Equipment Lifespan: Protects pneumatic components from wear and contamination, extending their operational life and reducing maintenance frequency.
  • Improved Safety: Consistent pressure and clean air supply ensure safer operations, adhering to stringent industry safety standards.


  • Automated Manufacturing: Crucial in automated production lines, where precise air quality and pressure are essential for high-quality outputs and machine longevity.
  • Control Systems: Supports control systems requiring stable and clean air for accurate and reliable operation.
  • Testing and Inspection: Ideal for environments where consistent air quality and pressure are necessary for precise testing and inspection processes.
  • General Industrial Use: Suitable for a broad range of industrial applications, from automotive to food processing, where air quality and pressure regulation enhance operational precision and reliability.

The Festo MS4-LFR-1/4-D7-ERM-AS Filter Regulator stands as a testament to Festo’s commitment to advancing pneumatic technology, providing a sophisticated solution for managing air quality and pressure, thereby optimizing the performance and safety of industrial processes. This unit is indispensable for ensuring efficient and reliable operation across various pneumatic applications.

Technical Data

Feature Specification
Size 4
Series MS
Actuator lock Rotary knob with detent
can be closed with accessories
Mounting position Vertical +/- 5°
Grade of filtration 40 µm
Condensate drain Manually rotating
Structural design Filter regulator with pressure gauge
Max. condensate volume 19 ml
Controller function Outlet pressure constant
With secondary exhausting
With return flow function
Bowl guard Plastic bowl guard
Degree of condensate separation >75 %
Symbol 00991589
Pressure gauge with pressure gauge
Operating pressure 0.08 MPa … 1.4 MPa
Operating pressure 0.8 bar … 14 bar
Pressure regulation range 0.5 bar … 12 bar
Max. pressure hysteresis 0.25 bar
Standard nominal flow rate 1500 l/min
Operating medium Compressed air as per ISO 8573-1:2010 [-:4:-] Inert gas
Corrosion resistance class (CRC) 2 – Moderate corrosion stress
LABS (PWIS) conformity VDMA24364-B1/B2-L
Storage temperature -10 °C … 60 °C
For use in the food industry See supplementary material information
Air quality class at the output Compressed air as per ISO 8573-1:2010 [7:4:4]
Temperature of medium -10 °C … 60 °C
Ambient temperature -10 °C … 60 °C
Pore size <40 µm
Product weight 275 g
Type of mounting Optionally:
Front panel mounting
Line installation
With accessories
Pneumatic connection 1 G1/4
Pneumatic connection 2
Note on materials RoHS-compliant
Material of sub-base Die-cast aluminum
Material of operator panel PA
Seals material NBR
Compressed air filter material PE
Housing material Die-cast aluminum
Diaphragm material NBR
Material of bowl PC
Separating disc material POM
Weight 0.275 kg