| Product Type |
Festo Standard Namur valves |
| Short type code |
VSNB |
| Standard |
VDI/VDE 3845 (NAMUR) |
| Width |
44.5 mm |
| Valve Function |
5/2 bistable |
| Mounting |
On sub-base |
| Ambient temp |
-10 - 60 °C |
| Assembly position |
Any |
| Corrosion resistance classification CRC |
2 |
| Design structure |
Piston slide |
| Duty cycle |
100% |
| Exhaust-air function |
throttleable |
| Explosion protection |
Zone 1 (ATEX) |
| Explosion protection |
Zone 2 (ATEX) |
| Explosion protection |
Zone 21 (ATEX) |
| Explosion protection |
Zone 22 (ATEX) |
| Flow direction |
non reversible |
| Freedom from overlap |
Yes |
| Materials information for seals |
NBR |
| Materials information, housing |
Anodised |
| Materials information, housing |
Wrought Aluminium alloy |
| Materials note |
Conforms to RoHS |
| Materials note |
Contains PWIS substances |
| Medium temperature |
-10 - 60 °C |
| Nominal size |
8 mm |
| Operating medium |
filtered compressed air, grade of filtration 40 µm, lubricated or unlubricated |
| Operating Pressure |
2.5 - 8 bar |
| Pilot medium |
Filtered compressed air |
| Pilot pressure |
2.5 - 8 bar |
| Pneumatic connection, port 1 |
G1/4 |
| Pneumatic connection, port 2 |
Sub-base |
| Pneumatic connection, port 3 |
G1/4 |
| Pneumatic connection, port 4 |
Sub-base |
| Pneumatic connection, port 5 |
G1/4 |
| Pneumatic working line |
Anschlussplatte |
| Product weight |
350 g |
| Scavenging orifice connection |
M5 |
| Screw material data |
High alloy steel, non-corrosive |
| Sealing principle |
Soft |
| Standard nominal flow rate |
950 l/min |
| Switching time reversal |
30 ms |