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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
556841
Air solenoid valve VMPA1-M1H-DS-PI
The Festo 556841 is an electrical industrial component featuring a 2x2/2 closed, monostable valve function and a 10 mm valve size with a piston gate valve structural design. Operating at 24V DC with a normal nominal flow rate of 230 l/min and an operating pressure range of -0.09 MPa to 0.8 MPa, this c UL us-recognized unit includes IP65 protection, a mechanical spring reset, and a soft sealing principle. It offers reversible flow direction, positive overlap lap, piloted control with 3 bar to 8 bar pilot pressure, vacuum suitability, and both detenting and non-detenting manual override with a signal status display for any mounting position. Submit the exact part number, quantity, and application requirements for a formal quote.
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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
- 556841
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556841.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 2x2/2 closed, monostable
- Actuation type
- Electrical
- Valve size
- 10 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 230 l/min
- Operating voltage
- 24V DC
- Operating pressure
- -0.09 MPa...0.8 MPa | -0.9 bar...8 bar
- Structural design
- Piston gate valve
- Reset method
- Mechanical spring
- Certication
- c UL us - recognized (OL)
- Degree of protection
- IP65 | As per IEC 60529
- Sealing principle
- Soft
- Mounting position
- Any
- Manual override
- Detenting | Non-detenting
- Type of control
- Piloted
- Flow direction
- Reversible
- Lap
- Positive overlap
- Signal status display
- Yes
- Pilot pressure MPa
- 0.3 MPa...0.8 MPa
- Pilot pressure
- 3 bar...8 bar
- Suitability for vacuum
- Yes
- Standard nominal ow rate with QS-6
- 230 l/min
- Switching time off
- 16 ms
- On switching time
- 14 ms
- Max. positive test pulse with 0 signal
- 400 µs
- Max. negative test pulse on 1 signal
- 200 µs
- Permissible voltage uctuations
- +/- 25%
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
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 556841. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.