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Products/Festo/531861
Festo 531861 Micro filter MS6N-LFM-1/2-ARM
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Festo

531861

Micro filter MS6N-LFM-1/2-ARM

The Festo MS-series size 6 industrial component features a fiber filter with a 0.01 µm filtration grade and a manual, rotating condensate drain. Operating across a pressure range of 0 MPa to 2 MPa with compressed air or inert gases, this unit achieves a 99.9999% overall filter efficiency and a maximum standard flow rate of 900 l/min. The assembly includes a plastic bowl guard, a maximum condensate volume of 38 cm³, and operates within a medium and ambient temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
531861
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 531861.
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Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Series
MS
Size
6
Structural design
Fiber lter
Grade of ltration
0.01 µm
Condensate drain
Manual, rotating
Operating pressure
0 MPa...2 MPa | 0 bar...20 bar
Operating medium
Compressed air as per ISO 8573-1:2010 [6:-:4] | Inert gases
Air quality class at the output
Compressed air as per ISO 8573-1:2010 [3:-:2]
Max. standard ow rate for air quality class
900 l/min
Min. standard ow rate for air quality class
135 l/min
Filter efficiency
99.9999 %
Max. condensate volume
38 cm³
Bowl guard
Plastic bowl guard
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
LABS (PWIS) conformity
VDMA24364-B1/B2-L
For use in the food industry
See supplementary material information
Temperature of medium
-10 °C...60 °C
Ambient temperature
-10 °C...60 °C
Storage temperature
-10 °C...60 °C
Filter efficiency, ne particles
99.995 %
MPPS
0.05 µm
MPPS lter efficiency
99.95 %
Residual oil content
0.01 mg/m³
Filter efficiency, oil aerosol
99 %
Type of mounting
Alternatively: | In-line installation | With accessories
Mounting position
Vertical ±5°
Pneumatic connection 1
1/2 NPT
Pneumatic connection 2
1/2 NPT

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 531861. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.