8068936 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  5.5 bar
• PFH
  1.01E-7
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Type code
  DFPD
• 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
• Explosive ambient temperature
  -20°C <= Ta <= +80°C
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• MTTFd
  1126 years
• Swivel angle
  90 deg
• Mounting position
  Any
• Design
  Gear rack/pinion
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
• Operating pressure
  2 bar ... 8 bar
• Maritime classification
  See certificate
• Depth shaft connection
  38 mm
• Closing direction
  Clockwise closing
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• Housing material
  Wrought aluminum alloy, anodized
Size of valve actuator
1200
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 nominal swivel angle
-5 deg ... 5 deg
Mode of operation
Double-acting
Symbol
00991265
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Ambient temperature
-20 °C ... 80 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
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°
105 l
Cover material
Die-cast aluminum, coated
Material of screws
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F14
Standard connection for valve
ISO 5211
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
ATEX category gas
II 2G
Shaft connection
T36
Pneumatic connection
1/4 NPT
Material of piston
Die-cast aluminum
Shaft material
Steel, nickel-plated
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
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 90° swivel angle
1169.4 Nm
PFD
0.00142
Material of sub-base
Wrought aluminum alloy, anodized
Material of bearing
POM
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Torque at nominal operating pressure and 0° swivel angle
1169.4 Nm
Product weight
35834 g
Note on materials
RoHS-compliant
Seals material
NBR
Cam material
Steel

Related documents 8068936 Specs