Confirm the exact configuration
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
541259
On/off valve MS4-EM1-1/4-S
The Festo 541259 is a directly controlled 3/2-way bistable industrial component featuring a rotary vane structural design and manual actuation with a non-throttled exhaust air function. Operating across a pressure range of 0 MPa to 1.4 MPa, this unit delivers a normal nominal flow rate of 2200 l/min for compressed air meeting ISO 8573-1:2010 [7:4:4] standards or inert gases within a temperature range of -10 °C to 60 °C. The assembly offers moderate corrosion stress resistance with a CRC rating of 2, VDMA24364-B1/B2-L LABS conformity, RoHS compliant materials, and versatile mounting via in-line installation or accessories in any position. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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
- 541259
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 541259.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Structural design
- Rotary vane
- Actuation type
- Manual
- Exhaust air function
- Cannot be throttled
- Type of control
- directly
- Valve function
- 3/2-way, bistable
- Operating pressure
- 0 MPa...1.4 MPa | 0 bar...14 bar
- C value
- 9 l/sbar
- b-value
- 0.39
- Normal nominal ow rate (normalized to DIN 1343)
- 2200 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
- Note on materials
- RoHS compliant
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- For use in the food industry
- See supplementary material information
- Type of mounting
- Alternatively: | In-line installation | With accessories
- Mounting position
- Any
- Flow direction
- Non-reversible
- Product weight
- 210 g
- Pneumatic connection 1
- G1/4
- Pneumatic connection 2
- G1/4
- Pneumatic connection 3
- Not ducted
- Seals material
- TPE-U(PU)
- Housing material
- Die-cast aluminum
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 541259. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.