Time Delay Valve
Brand :
FESTO
Caution
Product Description
Time Delay Valve
Features
Specifications
| Type | VZ | VZO |
|---|---|---|
| Pneumatic port | PK-3 | |
| Nominal width [mm] | 2 | |
| Design | Poppet valve with spring return | |
| Type of actuation | Pneumatic | |
| Type of mounting | Front panel mounting | |
| On mounting frame | ||
| Mounting position | Any | |
| Valve function | 3/2-way valve, closed, monostable | 3/2-way valve, open, monostable |
| Lap | Underlap | |
| Manual override | None | |
| Exhaust-air function | With flow control | |
| Type of control | Direct | |
| Pilot air supply | External | |
| Direction of flow | Non-reversible | |
| Sealing principle | Soft | |
| Adjustable delay time [s] | 0.25 to 5 | |
| Pause period for reset [ms] | ≥ 55 | ≥ 50 |
| Repetition accuracy of time setting [s] | ±0.5 | |
Operating and environmental conditions
| Operating pressure [bar] | 2.5 to 8 |
|---|---|
| Operating/pilot medium | Compressed air to ISO 85731:2010 [7:4:4] |
| Note on operating/ pilot medium | Lubricated operation not possible |
| Note on forced checking procedure | Switching frequency at least 1/week |
| Ambient temperature [℃] | -10 to +60 |
| Temperature of medium [℃] | -10 to +60 |
Materials
| Housing | Die-cast zinc |
|---|---|
| Seals | Nitrile rubber |
| Note on materials | RoHS-compliant |