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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.
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Festo
555874
Pressure regulator MS4-LR-1/4-D6-VS-DM2
The Festo 555874 is an industrial component featuring a size 4 MS series structural design with a directly controlled diaphragm regulator and rotary knob with detent actuator lock. It delivers a normal nominal flow rate of 1800 l/min across an operating pressure range of 0.8 bar to 14 bar with a 0.3 bar to 7 bar pressure regulation range, constant output pressure, secondary exhausting, and return flow characteristic. Weighing 225 g with a CRC of 2 for moderate corrosion stress, this part operates on compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases within a temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements to request a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
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
- 555874
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 555874.
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
- 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 in the rotary knob
- Operating pressure
- 0.08 MPa...1.4 MPa | 0.8 bar...14 bar
- Pressure regulation range
- 0.3 bar...7 bar
- Max. pressure hysteresis
- 0.04 MPa | 0.4 bar | 5.8 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 1800 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
- G1/4
- Pneumatic connection 2
- G1/4
- 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 555874. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.