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Festo
529423
Pressure regulator MS4-LR-1/8-D6-AS
The Festo 529423 is an industrial component featuring a directly controlled diaphragm regulator from the MS series in size 4, providing constant output pressure with secondary exhausting and a return flow characteristic. This unit operates within a pressure range of 0.8 bar to 14 bar and a regulation range of 0.3 bar to 7 bar, delivering a normal nominal flow rate of 1150 l/min using compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases. Equipped with a rotary knob with detent that can be closed with accessories, an integrated pressure gauge, and a product weight of 225 g, it supports any mounting position and an operating temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements to request a formal quote for this 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
- 529423
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 529423.
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 detent | can be closed with accessories
- Mounting position
- Any
- Structural design
- Directly controlled diaphragm regulator
- Controller function
- Constant output pressure | With secondary exhausting | With return ow characteristic
- Pressure gauge
- with pressure gauge
- Operating pressure
- 0.08 MPa...1.4 MPa | 0.8 bar...14 bar
- Pressure regulation range
- 0.3 bar...7 bar
- Max. pressure hysteresis
- 0.025 MPa | 0.25 bar | 3.625 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 1150 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -10 °C...60 °C
- For use in the food industry
- See supplementary material information
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 225 g
- Type of mounting
- Alternatively: | Front panel mounting | In-line installation | With accessories
- Pneumatic connection 1
- G1/8
- Pneumatic connection 2
- G1/8
- 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 529423. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.