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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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Request a QuoteWhy no listed price?
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
- 531811
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531811.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
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
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 531811. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.