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Festo VOFD-L35T-
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, semi-automatic, 3/2-way, closed, monostable |
|---|---|
| Type Of Actuation | Electric |
| Construction Width | 51 mm |
| Standard Nominal Flow Rate (Standardised To Din 1343) | 406 l/min |
| Pneumatic Working Port | G1/4, 1/4 NPT |
| Operating Pressure | 116 psi |
| Design | Directly actuated poppet valve |
| Type Of Reset | Mechanical spring |
| Degree Of Protection | IP65 |
| Nominal Size | 3.5 mm |
| Sealing Principle | Soft |
| Mounting Position | optional |
| Manual Override | Detenting, None, Non-detenting |
| Type Of Piloting | Direct |
| Flow Direction | Non-reversible |
| Suitability For Vacuum | no |
| B Value | 0.15 |
| C Value | 1.8 l/sbar |
| Flow Rate Kv Pressurisation | 0.32 m³/h |
| Flow Rate Kv Exhaust | 0.32 m³/h |
| Standard Nominal Flow Rate 2 3 | 440 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 according to ISO 8573-1:2010 [7:1:2], Compressed air to ISO 8573-1:2010 [7:2:2] |
| Corrosion Resistance Class Crc | 4 – Very high corrosion stress |
| Labs (Pwis) Conformity | VDMA24364 zone III |
| Media Temperature | -50, 60 °C |
| Ambient Temperature | -50, 60 °C |
| Product Weight | 390 g |
| Note On Materials | RoHS-compliant |
| Material Seals | NBR, VMQ |
| Material Housing | High-alloy stainless steel |
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