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Festo
531785
Pressure regulator MS4N-LRB-1/4-D7-VS-AS-Z
The Festo 531785 is an MS-series size 4 industrial component featuring a directly-controlled diaphragm regulator design with a looped-through compressed air supply and a rotary knob with integrated lock actuator. This unit delivers a standard nominal flow rate of 1,500 l/min across a pressure control range of 0.5 to 12 bar, incorporating secondary exhaust, constant output pressure, and return flow controller functions. Constructed with an aluminum die-cast subbase and copper- and PTFE-free materials, the 222 g component accommodates NPT1/4-18 pneumatic connections and operates within a temperature range of -10 to 60 °C. Submit the exact part number, quantity, and application requirements to request a quote for this item.
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Request a Quote- Manufacturer
- Festo
- Part number
- 531785
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 531785.
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Verified configuration
Technical Specifications
- Size
- 4
- Series
- MS
- Actuator lock
- Rotary knob with integrated lock
- Assembly position
- Any
- Design structure
- directly-controlled diaphragm regulator | with looped-through compressed air supply
- Controller function
- Output pressure constant | with secondary exhaust | with return flow
- Pressure control range
- 0.5 ... 12 bar
- Inlet pressure 1
- 0.8 ... 14 bar
- Max. pressure hysteresis
- 0.25 bar
- Standard nominal flow rate
- 1,500 l/min
- Operating medium
- Compressed air
- Corrosion resistance classification CRC
- 2
- Storage temperature
- -10 ... 60 °C
- Medium temperature
- -10 ... 60 °C
- Ambient temperature
- -10 ... 60 °C
- Product weight
- 222 g
- Mounting type
- with accessories | Optional | Front panel installation | Line installation
- Pneumatic connection, port
- 2 NPT1/4-18
- Materials note
- Free of copper and PTFE
- Materials information for subbase
- Aluminum die cast
- Materials information for control panel
- POM | PA
- Materials information for seals
- NBR
- Materials information, housing
- Aluminum die cast
- Materials information for membrane
- NBR
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 531785. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.