Images are examples, some edited with AI. The technical data are authoritative. AI notice

Quarter turn actuator, double-acting, 7988.6 Nm, size 9500, flange F1625 DFPD-9500-SY-Y-90-RD-F1625 - Festo 8211835

Festo ✓ Original product Brand new

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.

Net
€7,195.06
excl. VAT
Item FES-8211835
Manufacturer no. DFPD-9500-SY-Y-90-RD-F1625
Question about this item
  • Specialist dealer since 2009
  • Invoice payment for regular customers
  • Worldwide shipping
  • Technical questions clarified with the manufacturer

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 codeDFPD-9500-SY-Y-90-RD-F1625
Festo part number8211835
Size of valve actuator9500
Flange hole patternF1625
Swivel angle90°
End-position adjustment range at 0°-5 to 5°
End-position adjustment range at nominal swivel angle-5 to 5°
Shaft connection depth57 mm
Fitting connection conforms to standardISO 5211
Mounting positionany
Mode of operationdouble-acting
DesignScotch yoke
Closing directioncloses to the right
Valve connection conforms to standardVDI/VDE 3845 (NAMUR)
Connection point for positioner and position sensor conforms to standardVDI/VDE 3845 size AA 3
Safety functionthe 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 pressure13.89 bar
Operating pressure3 to 4.6 bar
Nominal operating pressure4.63 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 EUEPL Gb (GB)
Explosion protectionZone 1 (ATEX), Zone 1 (UKEX), Zone 2 (ATEX), Zone 21 (ATEX), Zone 21 (UKEX), Zone 22 (ATEX)
Certificate issuing authorityGerman Technical Control Board (TÜV) Rheinland 968/V 2959.00/2025
ATEX category gasII 2G
ATEX category dustII 2D
Explosion ignition protection type for gasEx h IIC T6 Gb
Explosion ignition protection type for dustEx h IIIC T85°C Db
Explosion ambient temperature-20 to 80 °C
Operating mediumCompressed air to ISO 8573-1:2010 [7:3:4]
Note on operating and pilot mediumdew 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) conformityVDMA24364 zone III
Storage temperature-20 to 60 °C
Ambient temperature-20 to 80 °C
Torque at nominal operating pressure and 0° swivel angle7988.6 Nm
Torque at nominal operating pressure and 90° swivel angle7988.6 Nm
Note on torqueThe 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 weight153000 g
Shaft connectionT55
Pneumatic connectionG3/4
Note on materialsRoHS compliant
Material end capspheroidal graphite cast iron
Material stop screwsteel
Material sealsNBR
Material springspring steel
Material spring rodsteel
Material housingspheroidal graphite cast iron
Material pistonspheroidal graphite cast iron
Material piston rodsteel
Material tie rodsteel
Material cylinder barrelsteel
Weight188 kg
ManufacturerFesto
Hersteller-NrDFPD-9500-SY-Y-90-RD-F1625
EAN4052568769727
Zolltarifnummer84123900
GPSR HerstellerdatenFesto Vertrieb GmbH&Co. KG, Festo Campus 1, DE-73734 Esslingen, festo.com
ArtikelzustandNew
Artikel-AuthentizitätOriginal product
ThreadG 3/4
Seal materialNBR
MediumCompressed air
Functiondouble-acting
Actuation typepneumatic
NormISO 5211, VDI/VDE 3845
SeriesDFPD
Betriebsdruck max [bar]4
Temperaturbereich-20-80 °C
Temperature (max.)80

Downloads

Questions about this item

Any other question?

Send us the item number and your question. We clarify technical details directly with the manufacturer and usually reply on the next working day.

Customers Who Bought This Item Also Bought