8066421 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• 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.
• Flange hole pattern
  F1012
• Depth shaft connection
  29 mm
• Mode of operation
  Double-acting
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• Torque at nominal operating pressure and 90° swivel angle
  474 Nm
• Size of valve actuator
  480
• MTTFd
  1126 years
• Type code
  DFPD
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 2
• ATEX category for dust
  II 2D
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
• Torque at nominal operating pressure and 0° swivel angle
  474 Nm
• Shaft connection
  T27
• Seals material
  NBR
• Cam material
  Steel
Nominal operating pressure
5.5 bar
PFH
1.01E-7
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
End-position adjusting range at 0°
-5 deg ... 5 deg
Closing direction
Clockwise closing
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
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]
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Product weight
16025 g
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
Mounting position
Any
ATEX category gas
II 2G
Ambient temperature
-20 °C ... 80 °C
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
40.5 l
Pneumatic connection
1/4 NPT
Housing material
Wrought aluminum alloy, anodized
Shaft material
High-alloy stainless steel
Maritime classification
See certificate
Standard connection for valve
ISO 5211
Design
Gear rack/pinion
Symbol
00991265
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)
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.
Note on materials
RoHS-compliant
Material of bearing
POM
PFD
0.00142
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel

Related documents 8066421 Specs