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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
578799
One-way flow control valve VFOH-LE-A-G18-Q8
The Festo part number 578799 is an industrial component featuring an exhaust air flow control non-return function with a QS-8 pneumatic connection 1 and a G1/8 pneumatic connection 2. This screw-in unit utilizes manual actuation via an external hex adjusting element, delivering a standard nominal flow rate of 275 l/min in the flow control direction and an operating pressure range from 0.2 bar to 10 bar across an ambient temperature range of 0 °C to 150 °C. Compressed air as per ISO 8573-1:2010 [7:4:4] serves as the operating medium, allowing for oil-lubricated operation which is required for further use. 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
- 578799
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 578799.
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
- Exhaust air ow control non-return function
- Pneumatic connection 1
- QS-8
- Pneumatic connection 2
- G1/8
- Actuation type
- Manual
- Adjusting element
- External hex
- Type of mounting
- Screw-in
- Standard nominal ow rate in ow control direction
- 275 l/min
- Standard nominal ow rate in non-return direction
- 132 l/min...307 l/min
- Ambient temperature
- 0 °C...150 °C
- Mounting position
- Any
- Operating pressure for entire temperature range
- 0.2 bar...10 bar
- Standard ow rate in ow control direction 6 -> 0 bar
- 400 l/min
- Standard ow rate in non-return direction at 6 -> 0 bar
- 330 l/min...410 l/min
- 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)
- LABS (PWIS) conformity
- VDMA24364-B2-L
- Storage temperature
- -10 °C...150 °C
- Temperature of medium
- 0 °C...150 °C
- Nominal tightening torque
- 3 Nm
- Tolerance for nominal tightening torque
- ±10%
- Product weight
- 23 g
- Note on materials
- RoHS compliant
- Seals material
- FPM
- Hollow bolt material
- Wrought aluminum alloy
- Releasing ring material
- Brass, nickel-plated
- Material of adjusting screw
- high-alloy stainless steel
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 578799. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.