8102889 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• Safety function
  The fundamental safety function is that the control valve moves to the switching position when the compressed air is turned off. It is reset by spring force.
• Swivel angle
  90 deg
• Type code
  DFPD
• Mode of operation
  Single-acting
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• Certified for safety function to ISO 13849 and IEC 61508 (SIL)
  Product can be used in safety-related parts of control systems up to SIL 2, low demand up to SIL 3 in a redundant architecture
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• Storage temperature
  -20 °C ... 60 °C
• PFD
  7.8E-4
• Pneumatic connection
  G1/4
• Cover material
  Die-cast aluminum, coated
• Material of bearing
  POM
• PFH
  1.01E-7
• Depth shaft connection
  38 mm
• Symbol
  00991266
• ATEX category gas
  II 2G
• Ambient temperature
  -20 °C ... 80 °C
• Torque at nominal operating pressure and 90° swivel angle
  256.8 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
31.5 l
Note on materials
RoHS-compliant
Seals material
NBR
Shaft material
High-alloy stainless steel
Size of valve actuator
900
MTTFd
1126 years
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Closing direction
Clockwise closing
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
ATEX category for dust
II 2D
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Note about the torque
The actuator's operating torque must not be higher than the maximum permissible torque listed in ISO 5211, based on the size of the mounting flange and the coupling.
Material of sub-base
Wrought aluminum alloy, anodized
Material of spring
Spring steel
Nominal operating pressure
4.5 bar
Maritime classification
See certificate
Explosive ambient temperature
-20°C <= Ta <= +80°C
Information on operating and pilot media
Dew point min. 10 °C below the ambient and medium temperature Operation with oil lubrication possible (required for further use)
Torque at nominal operating pressure and 0° swivel angle
452.8 Nm
Spring return torque at 0° swivel angle
236.1 Nm
Product weight
29199 g
Material of piston
Die-cast aluminum
Material of screws
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F14
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Mounting position
Any
Design
Gear rack/pinion
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 3
Type of ignition protection for gas
Ex h IIC T4 Gb X
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Spring return torque with 90° swivel angle
432.1 Nm
Shaft connection
T36
Housing material
Wrought aluminum alloy, anodized
Cam material
Steel

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