Attributes
| Order Code | DFPI-250- -ND2P-E-NB3P |
|---|
Description
Easy to install – sturdy and reliable in use: the corrosion resistant linear actuator DFPI to ISO 15552 with built-in linear potentiometer or fully integrated valve positioner.
• Mounting interfaces to ISO 15552 on bearing and end caps
• Sturdy tie rod design
• Integrated air supply
• With optional integrated linear potentiometer or fully integrated valve positioner
• IP65, IP67, IP69K, NEMA4
• As per EU explosion protection directive (ATEX)
Specifications
| Size of valve actuator | 250 |
|---|---|
| Stroke | 40, 990 mm |
| Piston diameter | 250 mm |
| Based on norm | ISO 15552 |
| Cushioning | No cushioning |
| Mounting position | Any |
| Mode of operation | Double-acting |
| Structural design | Piston, Piston rod, Tie rod 1, Cylinder barrel |
| Position sensing | With integrated linear potentiometer |
| Symbol | 00992807 |
| Measuring principle of linear potentiometer | Potentiometer |
| Operating pressure | 43.5, 116 psi |
| Nominal operating pressure | 6 bar |
| DC operating voltage range | 0, 15 V |
| Recommended contact current | 0.1 µA |
| Max. short-time slider current | 10000 µA |
| CE marking (see declaration of conformity) | As per EU EMC directive, as per EU explosion protection directive (ATEX), As per EU RoHS directive |
| UKCA marking (see declaration of conformity) | acc. to UK EX instructions |
| Explosion prevention and protection | Zone 1 (ATEX), Zone 2 (ATEX), Zone 21 (ATEX), Zone 22 (ATEX) |
| ATEX category gas | II 2G |
| ATEX category for dust | II 2D |
| Type of ignition protection for gas | Ex h IIC T4 Gb |
| Type of (ignition) protection for dust | Ex h IIIC T120°C Db |
| Explosive ambient temperature | -20°C <= Ta <= +60°C |
| Operating medium | Compressed air as per ISO 8573-1:2010 [7:4:4] |
| Information on operating and pilot media | Operation with oil lubrication possible (required for further use) |
| Continuous shock resistance to DIN/IEC 68 Part 2-82 | Tested as per severity level 2 |
| LABS (PWIS) conformity | VDMA24364 Zone III |
| Storage temperature | -20, 80 °C |
| Relative air humidity | 5 - 100%, Condensating |
| Degree of protection | IP65, IP67, IP69K, NEMA 4 |
| Vibration resistance to DIN/IEC 68 Part 2-6 | Tested as per severity level 2 |
| Ambient temperature | -20, 80 °C |
| Impact energy in the end positions | 1.9 J |
| Theoretical force at 6 bar, retracting | 28274 N |
| Theoretical force at 6 bar, advancing | 29452 N |
| Air consumption, retracting, per 10 mm stroke | 3.299 l |
| Air consumption advancing per 10 mm stroke | 3.436 l |
| Moving mass at 0 mm stroke | 9300 g |
| Additional moving mass per 10 mm stroke | 134 g |
| Basic weight with 0 mm stroke | 31100 g |
| Additional weight per 10 mm stroke | 358 g |
| Hysteresis | 0.33 mm |
| Independent linearity | ±0.04% |
| Repetition accuracy in ± mm | 0.12 mm |
| Electrical connection | Straight plug/screw terminal, With specific accessories |
| Pneumatic connection | For pneumatic tubing outside diameter 8 mm, With specific accessories |
| Note on materials | RoHS compliant |
| Material of end caps | Wrought aluminum alloy, coated |
| Lower cover material | Coated die-cast aluminum |
| Electrical connection material | Brass, nickel-plated |
| Piston rod material | high-alloy stainless steel |
| Piston rod wiper material | NBR |
| Material of pneumatic tubing | Protective grounding |
| Material of screws | Coated steel, high-alloy stainless steel |
| Static seal material | NBR |
| Material of pneumatic fitting | Brass, nickel-plated |
| Tie rod material | high-alloy stainless steel |
| Material of cylinder barrel | Wrought aluminum alloy, smooth-anodized |
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