8102911 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  3.5 bar
• Swivel angle
  90 deg
• Flange hole pattern
  F16
• Mounting position
  Any
• Symbol
  00991266
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• Storage temperature
  -20 °C ... 60 °C
• Torque at nominal operating pressure and 90° swivel angle
  564 Nm
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  84.4 l
• Operating pressure
  2 bar ... 8 bar
• Maritime classification
  See certificate
• Depth shaft connection
  48 mm
• Mode of operation
  Single-acting
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• Spring return torque with 90° swivel angle
  857.2 Nm
• Shaft connection
  T46
Housing material
Wrought aluminum alloy, anodized
Cam material
Steel
MTTFd
1126 years
End-position adjusting range at 0°
-5 deg ... 5 deg
Closing direction
Clockwise closing
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Explosive ambient temperature
-20°C <= Ta <= +80°C
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Torque at nominal operating pressure and 0° swivel angle
916.5 Nm
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
Material of piston
Die-cast aluminum
Size of valve actuator
2300
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.
Type code
DFPD
Design
Gear rack/pinion
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
ATEX category for dust
II 2D
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
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)
Spring return torque at 0° swivel angle
504.7 Nm
Product weight
72531 g
Pneumatic connection
G1/4
Material of bearing
POM
Shaft material
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
PFH
1.01E-7
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
ATEX category gas
II 2G
Ambient temperature
-20 °C ... 80 °C
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
PFD
7.8E-4
Cover material
Die-cast aluminum, coated
Note on materials
RoHS-compliant
Seals material
NBR
Material of screws
High-alloy stainless steel

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