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Festo
173731
Micro filter LFMA-3/8-D-MIDI-A-NPT
The Festo part number 173731 is a Midi size industrial component from Series D designed with a 0.01 µm grade of filtration and a fully automatic condensate drain. It operates at a pressure range of 2 bar to 12 bar with compressed air as per ISO 8573-1:2010 [6:8:4] or inert gases, delivering an air quality class output of ISO 8573-1:2010 [1:7:2] with a filter efficiency of 99.9999% and a maximum standard flow rate of 880 l/min. Featuring 3/8 NPT pneumatic connections for 1 and 2, this unit includes a metal bowl guard and operates within a medium temperature range of 1.5 °C to 60 °C and an ambient temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements for a quote.
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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
- 173731
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 173731.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Series
- D
- Size
- Midi
- Grade of ltration
- 0.01 µm
- Condensate drain
- Fully automatic
- Operating pressure
- 2 bar...12 bar
- Operating medium
- Compressed air as per ISO 8573-1:2010 [6:8:4] | Inert gases
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [1:7:2] | Inert gases
- Max. standard ow rate for air quality class
- 880 l/min
- Min. standard ow rate for air quality class
- 250 l/min
- Filter efficiency
- 99.9999 %
- Bowl guard
- Metal bowl guard
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Temperature of medium
- 1.5 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Residual oil content
- 0.01 mg/m³
- Type of mounting
- Alternatively: | In-line installation | With retaining bracket
- Mounting position
- Vertical
- Pneumatic connection 1
- 3/8 NPT
- Pneumatic connection 2
- 3/8 NPT
- Housing material
- Die-cast zinc
- Compressed air lter material
- Borosilicate glass ber
- Material of bowl
- PC
- Note on materials
- RoHS compliant
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 173731. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.