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Festo
1505391
One-way flow control valve VFOF-LE-H-G14-Q8
The Festo 1505391 is an industrial component featuring a one-way flow control function for exhaust air with a G1/4 pneumatic connection on port 2 and manual actuation via an internal hex adjusting element. Constructed with a PBT housing for threaded mounting in any assembly position, this unit operates with compressed air according to ISO 8573-1:2010 [7:4:4] at working pressures from 0.2 to 10 bar and ambient temperatures between -10 and 60 °C. It delivers a standard nominal flow rate of 650 l/min in the flow control direction and 300 to 650 l/min in the non-return direction, while supporting 360° swiveling without continuous swiveling permitted. Submit the exact part number, quantity, and application requirements for 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
- 1505391
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 1505391.
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
- One-way flow control function for exhaust air
- Pneumatic connection, port
- 2 G1/4
- Type of actuation
- manual
- Adjusting element
- Internal hex
- Mounting type
- Threaded
- Standard nominal flow rate in flow control direction
- 650 l/min
- Standard nominal flow rate in non-return direction
- 300 ... 650 l/min
- Working pressure
- 0.2 ... 10 bar
- Ambient temperature
- -10 ... 60 °C
- Material housing
- PBT
- Assembly position
- Any
- Ability to swivel
- 360° / no continuous swivelling permissible
- Standard flow rate in direction of flow control: 6 -> 0 bar
- 1,100 l/min
- Standard flow rate in blocked direction: 6 -> 0 bar
- 460 ... 540 l/min
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4]
- Note on operating and pilot medium
- Lubricated operation possible (subsequently required for further | operation)
- Medium temperature
- -10 ... 60 °C
- Pilot medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4]
- Nominal tightening torque
- 11 Nm
- Tolerance for nominal tightening torque
- ± 20 %
- Permissible actuation moment, regulating screw
- 1.5 Nm
- Product weight
- 32.9 g
- Materials note
- Conforms to RoHS
- Material seals
- NBR
- Material hollow bolt
- Wrought Aluminum alloy
- Material sleeve
- Wrought Aluminum alloy
- Material release ring
- POM
- Material adjusting screw
- Brass
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 1505391. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.