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Products/Festo/531811
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Festo

531811

Fine filter MS4N-LFM-1/4-BRM-Z

The Festo part number 531811 is an industrial component featuring a Size 4 MS series design structure utilizing a 1 µm fiber filter with a 99.99% filter efficiency and a manual rotary condensate drain. This unit operates with an inlet pressure range of 0 to 14 bar, a standard nominal flow rate of 180 l/min, and delivers filtered, unlubricated compressed air achieving an output air purity class of 2.7.3 per DIN ISO 8573-1 with a residual oil content of 0.5 mg/m3. The 190 g component operates and stores within a temperature range of -10 to 60 µC, maintains a maximum condensate volume of 19 ml, features a plastic bowl guard, and requires vertical assembly within ±5° for line installation with accessories. Please submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer
Festo
Part number
531811
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 531811.
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Verified configuration

Technical Specifications

Size
4
Series
MS
Assembly position
Vertical +/- 5°
Grade of filtration
1 µm
Filter efficiency
99.99 %
Condensate drain
manual rotary
Design structure
Fiber filter
Max. condensate volume
19 ml
Bowl guard
Plastic guard
Inlet pressure 1
0 ... 14 bar
Standard nominal flow rate
180 l/min
Operating medium
Filtered, unlubricated compressed air, 5 µm filtration
Corrosion resistance classification CRC
2
Storage temperature
-10 ... 60 °C
Air purity class at output
2.7.3 per DIN ISO 8573-1
Medium temperature
-10 ... 60 °C
Residual oil content
0.5 mg/m3
Ambient temperature
-10 ... 60 °C
Product weight
190 g
Mounting type
with accessories | Optional | Line installation
Pneumatic connection, port
2 NPT1/4-18
Materials note
Free of copper and PTFE
Materials information for seals
NBR
Materials information for filter
Boron silicate fiber
Materials information, housing
Aluminum die cast
Materials information for bowl
PC

Engineering context

Identification and RFQ Guidance

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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.

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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 531811. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.