Check valve, VFOF Series
Brand :
FESTO
Caution
Product Description
Check valve, VFOF Series
Features
Specifications
| Valve function | Exhaust air one-way flow control function | |||
|---|---|---|---|---|
| Pneumatic connection 2 | G 1/8 | G 1/4 | ||
| Pneumatic connection 1 | QS-6 | QS-8 | ||
| Pilot air connection 21 | QS-6 | QS-8 | ||
| Adjusting element | Internal hex | |||
| Actuation type | Manual | |||
| Type of actuation, piloted non-return function | Pneumatic | |||
| Manual exhaust function | Non-detenting | |||
| Type of mounting | Screw-in | |||
| Mounting position | Any | |||
| Switching time | Off [ms] | 9 | 11 | |
| On [ms] | 6 | 8 | ||
| Nominal tightening torque [Nm] | 3 ±20% | 11 ±20% | ||
| Perm. actuation torque for regulating screw [Nm] | 1 | |||
| Rotatability [°] | 360 (continuous rotation not permitted) | |||
Operating and environmental conditions
| Operating pressure [bar] | 0.2 to 10 | |
|---|---|---|
| Pilot pressure [bar] | 2 to 10 | |
| Operating/pilot medium | Compressed air according to ISO 85731:2010 [7:4:4] | |
| Note on operating/pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | |
| Ambient temperature [℃] | -10 to +60 | |
| Temperature of medium [℃] | -10 to +60 | |
| Storage temperature [℃] | -20 to +70 | |
| Corrosion resistance class CRC | 2 | |