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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
577281
Air solenoid valve VSNC-FC-M52-MD-G14-FN-1A1-EX4-A
The Festo 577281 is an electrical 32 mm piston gate valve featuring a switchable 5/2- or 3/2-way valve function and a NAMUR pneumatic working port connection pattern. This component delivers a normal nominal flow rate of 1250 l/min at an operating pressure range of 0.25 MPa to 0.8 MPa utilizing a 24V DC operating voltage, mechanical spring reset, and soft sealing principle with an adjustable exhaust air function. Certified with IP65 protection via plug socket and rated for explosive ambient temperatures from -40°C to +50°C, it includes ATEX category II 2G and II 2D ratings along with IEC-EX EPL Ga and Db certifications, Ex ia IIC T6 Ga gas and Ex t IIIC T80°C dust ignition protection, and DNVGL-TAA000011J issuance. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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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
- 577281
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 577281.
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
- 5/2- or 3/2-way, switchable
- Actuation type
- Electrical
- Width
- 32 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 1250 l/min
- Pneumatic working port
- NAMUR connection pattern
- Operating voltage
- 24V DC
- Operating pressure
- 0.25 MPa...0.8 MPa | 2.5 bar...8 bar
- Structural design
- Piston gate valve
- Reset method
- Mechanical spring
- Explosion protection certication outside the EU
- EPL Db (IEC-EX) | EPL Ga (IEC-EX)
- Certicate issuing authority
- DNVGL-TAA000011J
- ATEX category gas
- II 2G
- ATEX category for dust
- II 2D
- Type of ignition protection for gas
- Ex ia IIC T6 Ga
- Type of (ignition) protection for dust
- Ex t IIIC T80°C Db
- Explosive ambient temperature
- -40°C <= Ta <= +50°C
- Degree of protection
- IP65 | With plug socket | As per IEC 60529
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Conforms to standard
- VDI/VDE 3845 (NAMUR)
- Manual override
- Detenting | Non-detenting
- Type of control
- Piloted
- Pilot air supply port
- Internal
- Flow direction
- Non-reversible
- Lap
- Positive overlap
- Signal status display
- With accessories
- b-value
- 0.4
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 577281. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.