Product Model
vfof-le-bah-g18-q4
Selling Points
- 1The Festo VFOF-LE-BAH-G18-Q4 one-way flow control valve offers a standard nominal flow rate of 0 to 260 liters per minute in the flow control direction, ensuring efficient air flow management in pneumatic systems.
- 2This valve is designed to be compact and can be rotated horizontally through 360° in its assembled state, making it easy to integrate into various applications.
- 3The VFOF-LE-BAH-G18-Q4 combines one-way flow control with a piloted check valve function, providing a functional combination for exhaust air flow control and non-return functions.
- 4The valve operates within a pressure range of 0.2 to 10 bar and an ambient temperature range of -10 to 60°C, ensuring reliable performance in various environmental conditions.
- 5Constructed from high-quality materials such as PA-reinforced rotary knobs and wrought aluminum alloy hollow bolts, this valve is durable and resistant to corrosion.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Valve function | Exhaust air flow control non-return function | Selection of additional function | Piloted check valve |
Pneumatic connection 1 | QS-4 | Pneumatic connection 2 | G1/8 |
Actuation type | Manual | Pilot air port 21 | QS-4 |
Adjusting element | Internal hexagon | Type of mounting | Screw-in |
Standard nominal flow rate in flow control direction | 240l/min | Standard nominal flow rate in non-return direction | 120l/min 220l/min |
Operating pressure | 2.9psi 145psi | Pilot pressure MPa | 0.2MPa 1MPa |
Pilot pressure | 2bar 10bar | Pilot pressure psi | 29psi 145psi |
Ambient temperature | -10°C 60°C | Housing material | PBT |
Explosion prevention and protection | Zone 2 (ATEX) Zone 22 (ATEX) | Mounting position | Any |
Actuation type, piloted non-return function | Pneumatic | Manual exhaust function | Non-detenting |
Symbol | 00991958 | Rotatability | 360 deg/continuous swiveling not permissible |
Operating pressure for entire temperature range | 2.9psi 145psi | Standard flow rate in flow control direction 6 -> 0 bar | 420l/min |
Standard flow rate in non-return direction at 6 -> 0 bar | 400l/min 460l/min | Standard flow rate in non-return direction at 6 -> 0 bar unactuated | 400l/min 460l/min |
Standard nominal flow rate in non-return direction actuated | 150l/min 230l/min | Standard nominal flow rate in non-return direction, unactuated | 120l/min 220l/min |
Switching time off | 9ms | On switching time | 6ms |
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-B1/B2-L | Temperature of medium | -10°C 60°C |
Pilot medium | Compressed air as per ISO 8573-1:2010 [7:4:4] | Nominal tightening torque | 3Nm |
Tolerance for nominal tightening torque | ± 20% | Permissible actuation moment, adjusting screw | 1Nm |
Product weight | 29.2g | Covering material | ES-BE |
Note on materials | RoHS-compliant | Cover material | PBT |
Seals material | NBR | Hollow bolt material | Wrought aluminum alloy |
Sleeve material | Wrought aluminum alloy | Releasing ring material | POM |
Material of adjusting screw | Brass | Manufacturer ID | 8193269 |
Specifications may be subject to change without notice