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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
529475
Pressure regulator MS4-LRB-1/4-D5-AS-BD-Z
The Festo size 4 industrial component from the MS series is a directly-controlled diaphragm regulator featuring a looped-through compressed air supply, integrated pressure gauge, and QS-8 pneumatic connections. It provides an output pressure constant with secondary exhaust and return flow across a 0.3 to 4 bar pressure control range, operating within a working pressure of 0.8 to 14 bar and a standard nominal flow rate of 650 l/min. Actuation is managed by a lockable rotary knob with accessories, and the unit supports optional front panel or line installation in any assembly position for compressed air or inert gases. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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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
- 529475
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 529475.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- 4
- Series
- MS
- Actuator lock
- Rotary knob with lock | with accessories, lockable
- 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 gauge
- with pressure gauge
- Working pressure
- 0.8 ... 14 bar
- Pressure control range
- 0.3 ... 4 bar
- Max. pressure hysteresis
- 0.25 bar
- Standard nominal flow rate
- 650 l/min
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4] | Inert gases
- Note on operating and pilot medium
- Lubricated operation possible (subsequently required for further | operation)
- 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
- Optional | Front panel installation | Line installation | with accessories
- Pneumatic connection, port
- 2 QS-8
- Materials note
- Conforms to RoHS
- 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 529475. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.