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Valve function | 3/2, closed, monostable |
Actuation type | Electrical |
Width | 50.5 mm |
Standard nominal flow rate | 493 l/min |
Pneumatic working port | Flange 1/4 NAMUR connection diagram |
Operating pressure | 0 bar ... 10 bar |
Design | Directly controlled poppet valve |
Reset method | Mechanical spring |
Degree of protection | IP65 |
Nominal width | 5 mm |
Type code | VOFD |
Sealing principle | Soft |
Mounting position | Any |
Manual override | None |
Type of control | Direct |
Flow direction | Reversible |
Symbol | 00995226 |
Safety function | Safe venting |
Safety integrity level (SIL) | Up to SIL 3 high demand mode Up to SIL 3 low demand mode |
Suitability for vacuum | yes |
b-value | 0.25 |
C value | 2 l/sbar |
Flow rate for piston valve pressurization | 0.36 m³/h |
Flow rate for piston valve exhausting | 0.36 m³/h |
Standard nominal flow rate 2-3 | 429 l/min |
Switching time off | 60 ms |
On switching time | 40 ms |
Certificate issuing authority | German Technical Control Board (TÜV) V496.02/16 |
Explosion prevention and protection | Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX) |
Operating medium | Compressed air as per ISO 8573-1:2010 [7:2:2] |
Extended ambient temperature | -25 - 60 °C Low demand mode |
Corrosion resistance class (CRC) | 4 - Particularly high corrosion stress |
Temperature of medium | -25 °C ... 60 °C |
Ambient temperature | -25 °C ... 60 °C |
Product weight | 560 g |
Pneumatic connection 1 | M5 NAMUR connection diagram |
Pneumatic connection 2 | Flange 1/4 NAMUR connection diagram |
Pneumatic connection 3 | G1/4 |
Note on materials | Contains paint-wetting impairment substances RoHS-compliant |
Seals material | NBR |
Housing material | Aluminum, ematal coated |