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Quarter turn actuator, double-acting, 7988.6 Nm, size 9500, flange F1625 DFPD-9500-SY-Y-90-RD-F1625 - Festo 8211835
Double-acting quarter turn actuator with Scotch yoke mechanism for process valves with flange pattern F1625 to ISO 5211. At 4.63 bar nominal pressure the T55 shaft delivers 7988.6 Nm. Approvals and rating: ATEX II 2G/2D, suitable up to SIL 2 Low Demand. Weight 153 kg.
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Description
The double-acting DFPD-9500-SY-Y-90-RD-F1625 turns process valves in both directions with compressed air and delivers 7988.6 Nm at 4.63 bar. It mounts via the F1625 hole pattern to ISO 5211, the T55 shaft, depth 57 mm engages the valve stem.
Benefits
- 7988.6 Nm torque across the 90° swivel angle at 4.63 bar
- Valve interface to ISO 5211: flange F1625, shaft connection T55
- Valve interface to VDI/VDE 3845 (NAMUR) for direct mounting of a solenoid valve, positioner and position sensor interface size AA 3
- For hazardous areas: ATEX II 2G and II 2D, ignition protection Ex h IIC T6 Gb
- Suitable for safety-related control systems (SRP/CS) up to SIL 2 Low Demand
- Air consumption 408.8 l per switching cycle at 6 bar
Applications
The DFPD is intended for quarter-turn valves with top flange F1625, such as ball valves and butterfly valves in process plants. The ATEX rating II 2G/2D allows the DFPD-9500-SY-Y-90-RD-F1625 to be installed in zones 1 and 2 as well as zones 21 and 22. The DFPD-9500-SY-Y-90-RD-F1625 runs on compressed air to ISO 8573-1:2010 [7:3:4] within 3 to 4.6 bar. For sizing the valve bracket: product weight 153 kg.
Technical data
| Order code | DFPD-9500-SY-Y-90-RD-F1625 |
|---|---|
| Festo part number | 8211835 |
| Size of valve actuator | 9500 |
| Flange hole pattern | F1625 |
| Swivel angle | 90° |
| End-position adjustment range at 0° | -5 to 5° |
| End-position adjustment range at nominal swivel angle | -5 to 5° |
| Shaft connection depth | 57 mm |
| Fitting connection conforms to standard | ISO 5211 |
| Mounting position | any |
| Mode of operation | double-acting |
| Design | Scotch yoke |
| Closing direction | closes to the right |
| Valve connection conforms to standard | VDI/VDE 3845 (NAMUR) |
| Connection point for positioner and position sensor conforms to standard | VDI/VDE 3845 size AA 3 |
| Safety function | the safety function consists of the actuator switching to the specified safety switching position, This switching movement is achieved by pressurising the corresponding pressure chamber with compressed air, The value of the generated torque depends on the |
| Safety Integrity Level (SIL) | up to SIL 2 Low Demand mode, Up to SIL 3 in a redundant architecture |
| Certified for safety function to ISO 13849 and IEC 61508 (SIL) | Product can be used in SRP/CS up to SIL 2 (Low Demand), Up to SIL 3 in a redundant architecture |
| Burst pressure | 13.89 bar |
| Operating pressure | 3 to 4.6 bar |
| Nominal operating pressure | 4.63 bar |
| CE mark (see declaration of conformity) | to EU Explosion Protection Directive (ATEX) |
| UKCA marking (see declaration of conformity) | to UK EX regulations |
| Explosion protection certification outside the EU | EPL Gb (GB) |
| Explosion protection | Zone 1 (ATEX), Zone 1 (UKEX), Zone 2 (ATEX), Zone 21 (ATEX), Zone 21 (UKEX), Zone 22 (ATEX) |
| Certificate issuing authority | German Technical Control Board (TÜV) Rheinland 968/V 2959.00/2025 |
| ATEX category gas | II 2G |
| ATEX category dust | II 2D |
| Explosion ignition protection type for gas | Ex h IIC T6 Gb |
| Explosion ignition protection type for dust | Ex h IIIC T85°C Db |
| Explosion ambient temperature | -20 to 80 °C |
| Operating medium | Compressed air to ISO 8573-1:2010 [7:3:4] |
| Note on operating and pilot medium | dew point at least 10 °C below the ambient temperature and temperature of the medium, Lubricated operation possible (in which case lubricated operation will always be required) |
| LABS (PWIS) conformity | VDMA24364 zone III |
| Storage temperature | -20 to 60 °C |
| Ambient temperature | -20 to 80 °C |
| Torque at nominal operating pressure and 0° swivel angle | 7988.6 Nm |
| Torque at nominal operating pressure and 90° swivel angle | 7988.6 Nm |
| Note on torque | The operating torque of the actuator must not exceed the maximum permissible torque listed in ISO 5211 for the size of the mounting flange and coupling |
| Air consumption at 6 bar per cycle 0°-nominal swivel angle-0° | 408.8 l |
| Product weight | 153000 g |
| Shaft connection | T55 |
| Pneumatic connection | G3/4 |
| Note on materials | RoHS compliant |
| Material end cap | spheroidal graphite cast iron |
| Material stop screw | steel |
| Material seals | NBR |
| Material spring | spring steel |
| Material spring rod | steel |
| Material housing | spheroidal graphite cast iron |
| Material piston | spheroidal graphite cast iron |
| Material piston rod | steel |
| Material tie rod | steel |
| Material cylinder barrel | steel |
| Weight | 188 kg |
| Manufacturer | Festo |
| Hersteller-Nr | DFPD-9500-SY-Y-90-RD-F1625 |
| EAN | 4052568769727 |
| Zolltarifnummer | 84123900 |
| GPSR Herstellerdaten | Festo Vertrieb GmbH&Co. KG, Festo Campus 1, DE-73734 Esslingen, festo.com |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Thread | G 3/4 |
| Seal material | NBR |
| Medium | Compressed air |
| Function | double-acting |
| Actuation type | pneumatic |
| Norm | ISO 5211, VDI/VDE 3845 |
| Series | DFPD |
| Betriebsdruck max [bar] | 4 |
| Temperaturbereich | -20-80 °C |
| Temperature (max.) | 80 |
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