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Festo
555621
Stem actuated valve VMEM-STC-M32U-M-G18
The Festo 555621 is a 20 mm wide mechanical industrial component featuring a 3/2 open, monostable poppet seat design with a 4 mm nominal size and a standard nominal flow rate of 500 l/min. Operating at a working pressure of 4.5 to 8 bar with internal pilot air supply, this piloted valve requires an actuating force of 15.5 N, supports a maximum force on the actuator of 80 N, and operates within a medium and ambient temperature range of -10 to 60 °C. Lubricated operation is possible and subsequently required for further operation using compressed air in accordance with ISO8573-1:2010 [7:-:-]. Please submit the exact part number, quantity, and application requirements for a quote.
Request pricing and availabilityCommercial response for your destination and required quantity.
Request a Quote- Manufacturer
- Festo
- Part number
- 555621
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 555621.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 3/2 open, monostable
- Type of actuation
- mechanical
- Width
- 20 mm
- Standard nominal flow rate
- 500 l/min
- Working pressure
- 4.5 ... 8 bar
- Design structure
- Poppet seat
- Type of reset
- mechanical spring
- Nominal size
- 4 mm
- Instructions for use
- Do not use as mechanical stop
- Type of piloting
- Piloted
- Pilot air supply
- Internal
- Max. switching frequency
- 3 Hz
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:-:-]
- Note on operating and pilot medium
- Lubricated operation possible (subsequently required for further | operation)
- Corrosion resistance classification CRC
- 2 - Moderate corrosion stress
- Medium temperature
- -10 ... 60 °C
- Ambient temperature
- -10 ... 60 °C
- Actuating force
- 15.5 N
- Max. force on actuator
- 80 N
- Product weight
- 152 g
- Mounting type
- with through hole
- Pneumatic connection, port
- 3 G1/8
- Materials note
- Conforms to RoHS
- Material cover
- POM
- Material seals
- NBR
- Material housing
- Wrought Aluminum alloy | Anodized
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 555621. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.