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Festo VOFD-L50T-
Suitable for process automation in the chemical and petrochemical industries , Suitable for outdoor use under harsh ambient conditions , Especially suitable for quarter turn actuators thanks to NAMUR…
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Description
Suitable for process automation in the chemical and petrochemical industries , Suitable for outdoor use under harsh ambient conditions , Especially suitable for quarter turn actuators thanks to NAMUR flange pattern , Variants with safety functions , Variants to EU Explosion Protection Directive (ATEX)
Specification
| Valve Function |
3/2-way, closed, monostable |
|---|---|
| Type Of Actuation |
Electric |
| Construction Width |
51 mm |
| Standard Nominal Flow Rate (Standardised To Din 1343) |
493 l/min |
| Pneumatic Working Port |
Flange 1/4, G1/4, 1/4 NPT, NAMUR port pattern |
| Operating Pressure |
145 psi |
| Design |
Directly actuated poppet valve |
| Type Of Reset |
Mechanical spring |
| Degree Of Protection |
IP65 |
| Certificate Issuing Authority |
TÜV 968/V 1251.02/24 |
| Nominal Size |
5 mm |
| Sealing Principle |
Soft |
| Mounting Position |
optional |
| Manual Override |
None |
| Type Of Piloting |
Direct |
| Flow Direction |
Reversible |
| Suitability For Vacuum |
yes |
| B Value |
0.25 |
| C Value |
2 l/sbar |
| Flow Rate Kv Pressurisation |
0.36 m³/h |
| Flow Rate Kv Exhaust |
0.36 m³/h |
| Standard Nominal Flow Rate 2 3 |
429 l/min |
| Switching Time Off |
60 ms |
| Switching Time On |
40 ms |
| Explosion Protection |
Zone 1 (ATEX), Zone 2 (ATEX), Zone 21 (ATEX), Zone 22 (ATEX) |
| Operating Medium |
Compressed air to ISO 8573-1:2010 [7:2:2] |
| Extended Ambient Temperature |
-25 … 60° C, Low demand mode |
| Corrosion Resistance Class Crc |
4 – Very high corrosion stress |
| Labs (Pwis) Conformity |
VDMA24364 zone III |
| Media Temperature |
-25, 60 °C |
| Ambient Temperature |
-25, 60 °C |
| Product Weight |
560 g |
| Note On Materials |
RoHS-compliant |
| Material Seals |
NBR |
| Material Housing |
High-alloy stainless steel |
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