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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
7803
Pneumatic valve VL/O-3-1/8-B
The Festo 7803 is a 3/2-way monostable pneumatic industrial component featuring a direct-controlled plate seat structural design with a soft sealing principle and negative overlap lap. It delivers a normal nominal flow rate of 500 l/min through G1/8 pneumatic working ports, operating within a pressure range of -0.95 bar to 10 bar (-0.095 MPa to 1 MPa) and supporting an adjustable exhaust air function with a maximum switching frequency of 12 Hz. This unit incorporates a mechanical spring reset method, external pilot air supply ports, a nominal width of 5 mm, a width dimension of 27 mm (overall width 26 mm), and accommodates any mounting position with reversible flow direction. Submit the exact part number, quantity, and application requirements to request a quote.
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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
- 7803
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 7803.
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
- 3/2, open/closed, monostable
- Actuation type
- Pneumatic
- Width
- 26 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 500 l/min
- Pneumatic working port
- G1/8
- Operating pressure
- -0.095 MPa...1 MPa | -0.95 bar...10 bar
- Structural design
- Plate seat
- Reset method
- Mechanical spring
- Nominal width
- 5 mm
- Width dimension
- 27 mm
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Type of control
- directly
- Pilot air supply port
- External
- Flow direction
- Reversible
- Lap
- Negative overlap
- Pilot pressure MPa
- 0.1 MPa...1 MPa
- Pilot pressure
- 1 bar...10 bar
- Max. switching frequency
- 12 Hz
- Switching time off
- 10 ms
- On switching time
- 4 ms
- 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)
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -20 °C...60 °C
- Temperature of medium
- -10 °C...60 °C
- Pilot medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 150 g
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 7803. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.