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Festo
539685
Filter regulator LFR-1/4-DB-7-MINI
The Festo part number 539685 is a mini series DB structural design filter regulator with a pressure gauge, featuring a 40 µm grade of filtration and a manually rotating condensate drain. This component operates within a pressure range of 1.5 bar to 10 bar (0.15 MPa to 1 MPa), provides a pressure regulation range of 0.5 bar to 7 bar, and delivers a standard nominal flow rate of 1200 l/min for compressed air as per ISO 8573-1:2010 [-:9:-] or inert gas. It incorporates a rotary knob with detent for actuator locking, secondary exhausting and return flow controller functions, and a vertical +/- 5° mounting position suitable for ambient and medium temperatures spanning -5 °C to 50 °C. Submit the exact part number, quantity, and application requirements to request a quote for this industrial component.
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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
- 539685
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 539685.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Mini
- Width
- 44 mm
- Series
- DB
- Actuator lock
- Rotary knob with detent
- Mounting position
- Vertical +/- 5°
- Grade of ltration
- 40 µm
- Condensate drain
- Manually rotating
- Structural design
- Filter regulator with pressure gauge
- Controller function
- With secondary exhausting | With return ow function
- Pressure gauge
- with pressure gauge
- Operating pressure
- 0.15 MPa...1 MPa | 1.5 bar...10 bar
- Pressure regulation range
- 0.5 bar...7 bar
- Max. pressure hysteresis
- 0.5 bar
- Standard nominal ow rate
- 1200 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [-:9:-] | Inert gas
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:8:4] | Inert gas
- Temperature of medium
- -5 °C...50 °C
- Ambient temperature
- -5 °C...50 °C
- Product weight
- 200 g
- Type of mounting
- Optionally: | Line installation | With through-hole | With mounting bracket
- Pressure gauge connection
- G1/8
- Pneumatic connection 1
- G1/4
- Pneumatic connection 2
- G¼
- 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 539685. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.