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Festo
539681
Pressure regulator LR-1/8-DB-7-MINI
The Festo 539681 is a mini Series DB pressure regulator with a width of 44 mm, featuring a pressure gauge and a rotary knob with lock for actuator security. This component provides a controller function with secondary exhaust and return flow, operating within a working pressure range of 1.5 to 10 bar and a pressure regulation range of 0.5 to 7 bar. It delivers a standard nominal flow rate of 800 l/min or greater for compressed air complying with ISO8573-1:2010 [-:-:-], with a maximum pressure hysteresis of 0.5 bar and a product weight of 150 g. The unit supports versatile mounting via optional front panel installation, line installation, through holes, or a mounting bracket, featuring G1/8 connections for the pressure gauge and port 2. Submit the exact part number, quantity, and application requirements to receive a formal quote.
Request pricing and availabilityCommercial response for your destination and required quantity.
Request a Quote- Manufacturer
- Festo
- Part number
- 539681
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 539681.
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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
- Any
- Design structure
- Pressure regulator with 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
- >= 800 l/min
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [-:-:-]
- Corrosion resistance classification CRC
- 1
- Medium temperature
- -5 ... 50 °C
- Ambient temperature
- -5 ... 50 °C
- Product weight
- 150 g
- Mounting type
- Optional | Front panel installation | 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, housing
- PA-reinforced
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 539681. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.