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Festo
173771
Filter regulator LFR-1/4-D-7-MINI-A-NPT
The Festo 173771 is a mini industrial component from the D series configured for vertical mounting with a 40 µm grade of filtration and a fully automatic condensate drain holding a maximum condensate volume of 22 cm³. It operates within a pressure range of 0.2 MPa to 1.2 MPa (2 bar to 12 bar) with a max pressure hysteresis of 0.2 bar, delivering a normal nominal flow rate of 1500 l/min using compressed air or inert gases. Weighing 460 g with a CRC of 2 for moderate corrosion stress, this unit supports in-line installation or mounting with a retaining bracket. Submit the exact part number, quantity, and application requirements for a formal quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
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
- 173771
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 173771.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Mini
- Series
- D
- Mounting position
- Vertical
- Grade of ltration
- 40 µm
- Condensate drain
- Fully automatic
- Max. condensate volume
- 22 cm³
- Bowl guard
- Metal bowl guard
- Operating pressure
- 0.2 MPa...1.2 MPa | 2 bar...12 bar
- Max. pressure hysteresis
- 0.2 bar
- Normal nominal ow rate (normalized to DIN 1343)
- 1500 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:9:-] | Inert gases
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -10 °C...60 °C
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:8:4] | Inert gases
- Temperature of medium
- 5 °C...60 °C
- Ambient temperature
- 5 °C...60 °C
- Product weight
- 460 g
- Type of mounting
- Alternatively: | In-line installation | With retaining bracket
- Pneumatic connection 1
- 1/4 NPT
- Pneumatic connection 2
- 1/4 NPT
- Note on materials
- RoHS compliant
- Housing material
- Die-cast zinc
- Material of 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 173771. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.