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
Reference imageConfirm configuration by manufacturer part number.
Festo
541287
On/off valve MS4N-EM1-1/8-Z
The Festo 541287 is a rotary vane industrial component featuring a direct, manually actuated 3/2-way bistable valve function with a non-reversible flow direction and an exhaust air function that cannot be throttled. It operates within a pressure range of 0 MPa to 1.4 MPa (0 bar to 14 bar), delivering a normal nominal flow rate of 1200 l/min with a C value of 4.6 l/sbar and a b-value of 0.51 using compressed air or inert gases. Constructed with RoHS-compliant materials and a moderate corrosion resistance class (CRC 2), the unit functions at medium and ambient temperatures from -10 °C to 60 °C and supports in-line or accessory-based mounting in any position. Submit the exact part number, quantity, and application requirements to receive a formal 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
- 541287
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 541287.
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
- 4.6 l/sbar
- b-value
- 0.51
- Normal nominal ow rate (normalized to DIN 1343)
- 1200 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
- 190 g
- Pneumatic connection 1
- 1/8 NPT
- Pneumatic connection 2
- 1/8 NPT
- Pneumatic connection 3
- 1/4 NPT
- 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 541287. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.