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Festo
549157
One-way flow control valve VFOV-LE-G18-Q8
The Festo part number 549157 is an industrial component featuring a one-way flow control function for exhaust air with a G1/8 pneumatic connection port and manual actuation via a PA-reinforced rotary knob. Operating at working pressures from 0.2 to 10 bar, this threaded-mount unit accommodates dried compressed air, either lubricated or unlubricated, across an ambient and medium temperature range of -10 to 60 °C. It delivers a standard nominal flow rate of 0 to 325 l/min in the flow control direction and 170 to 330 l/min in the non-return direction, utilizing NBR seals within a 12 g assembly that is free of copper and PTFE. Submit the exact part number, quantity, and application requirements to receive a quote.
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Request a Quote- Manufacturer
- Festo
- Part number
- 549157
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 549157.
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Verified configuration
Technical Specifications
- Valve function
- One-way flow control function for exhaust air
- Pneumatic connection, port
- 2 G1/8
- Type of actuation
- manual
- Adjusting element
- Rotary knob
- Mounting type
- Threaded
- Standard nominal flow rate in flow control direction
- 0 ... 325 l/min
- Standard nominal flow rate in non-return direction
- 170 ... 330 l/min
- Working pressure
- 0.2 ... 10 bar
- Ambient temperature
- -10 ... 60 °C
- Operating medium
- Dried compressed air, lubricated or unlubricated
- Assembly position
- Any
- Standard flow rate in direction of flow control: 6 -> 0 bar
- 0 ... 510 l/min
- Standard flow rate in blocked direction: 6 -> 0 bar
- 320 ... 600 l/min
- Storage temperature
- -10 ... 40 °C
- Medium temperature
- -10 ... 60 °C
- Max. tightening torque
- 3 Nm
- Product weight
- 12 g
- Materials note
- Free of copper and PTFE
- Materials information for seals
- NBR
- Material information, rotary knob
- PA-reinforced
- Material information, hollow bolt
- Wrought Aluminum alloy | Anodized
- Release ring material data
- POM
- Swivel joint material data
- PA-reinforced
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 549157. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.