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Festo
539687
Filter regulator LFR-1/8-DB-7-5M-MINI
The Festo 539687 is a mini-size DB series filter regulator with a width of 44 mm, featuring a design structure that includes a pressure gauge, manual rotary condensate drain, and a rotary knob with lock for actuator security. Operating within a working pressure range of 1.5 to 10 bar and a pressure regulation range of 0.5 to 7 bar, this component delivers a standard nominal flow rate of >= 500 l/min with secondary exhaust and return flow controller functions. It processes compressed air to ISO 8573-1:2010 [-:9:-] or inert gases within a medium and ambient temperature range of -5 to 50 °C, achieving an air purity class at the output of ISO 8573-1:2010 [6:8:4] with a maximum pressure hysteresis of 0.5 bar. Weighing 200 g and classified under CRC 1 for corrosion resistance, this unit requires a vertical +/- 5° assembly position. Submit the exact part number, quantity, and application requirements to request 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
- 539687
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 539687.
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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 lock
- Assembly position
- Vertical +/- 5°
- Grade of filtration
- 5 µm
- Condensate drain
- manual rotary
- Design structure
- Filter regulator with pressure gauge
- Controller function
- with secondary exhaust | with return flow
- Pressure gauge
- with pressure gauge
- Working pressure
- 1.5 ... 10 bar
- Pressure regulation range
- 0.5 ... 7 bar
- Max. pressure hysteresis
- 0.5 bar
- Standard nominal flow rate
- >= 500 l/min
- Operating medium
- Compressed air to ISO 8573-1:2010 [-:9:-] | Inert gases
- Corrosion resistance classification CRC
- 1
- Air purity class at output
- Compressed air in accordance with ISO8573-1:2010 [6:8:4] | Inert gases
- Medium temperature
- -5 ... 50 °C
- Ambient temperature
- -5 ... 50 °C
- Product weight
- 200 g
- Mounting type
- Optional | Line installation | with through hole | With mounting bracket
- Pressure gauge connection
- G1/8
- Pneumatic connection, port
- 2 G1/8
- Materials note
- Conforms to RoHS
- Materials information for seals
- NBR
- Material information, rotary knob
- POM
- Materials information for filter
- PE
- Materials information, housing
- PA-reinforced
- 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 539687. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.