8068928 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  5.5 bar
• Flange hole pattern
  F1012
• Maritime classification
  See certificate
• Closing direction
  Clockwise closing
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Devices type according to VDMA 66413
  Safety device
• Swivel angle
  90 deg
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Mode of operation
  Double-acting
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 2
• 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
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• PFD
  0.00142
• Pneumatic connection
  1/4 NPT
• Material of piston
  Die-cast aluminum
• Material of screws
  High-alloy stainless steel
• PFH
  1.01E-7
• Depth shaft connection
  29 mm
• Mounting position
  Any
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
ATEX category for dust
II 2D
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)
Storage temperature
-20 °C ... 60 °C
Torque at nominal operating pressure and 90° swivel angle
663.3 Nm
Shaft connection
T27
Cover material
Die-cast aluminum, coated
Cam material
Steel
Size of valve actuator
700
Safety function
The fundamental safety function is the execution of a complete working stroke (opening and closing of the process valve) within a defined time.
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Symbol
00991265
ATEX category gas
II 2G
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Ambient temperature
-20 °C ... 80 °C
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Torque at nominal operating pressure and 0° swivel angle
663.3 Nm
Material of sub-base
Wrought aluminum alloy, anodized
Seals material
NBR
Shaft material
Steel, nickel-plated
Operating pressure
2 bar ... 8 bar
MTTFd
1126 years
Type code
DFPD
Design
Gear rack/pinion
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Explosive ambient temperature
-20°C <= Ta <= +80°C
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Product weight
22464 g
Housing material
Wrought aluminum alloy, anodized
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
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.
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
58.8 l
Note on materials
RoHS-compliant
Material of bearing
POM

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