8066439 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  6 bar
• Maritime classification
  See certificate
• Type code
  DFPD
• Design
  Gear rack/pinion
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 1
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Ambient temperature
  -20 °C ... 80 °C
• Operating pressure
  2 bar ... 8 bar
• PFH
  1.01E-7
• Depth shaft connection
  12 mm
• Symbol
  00991266
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• 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)
• Torque at nominal operating pressure and 90° swivel angle
  7.6 Nm
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  0.8 l
• Shaft connection
  T11
• Cover material
  Die-cast aluminum, coated
• Material of bearing
  POM
Shaft material
High-alloy stainless steel
Size of valve actuator
20
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.
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Closing direction
Clockwise closing
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
Explosive ambient temperature
-20°C <= Ta <= +80°C
CE marking (see declaration of conformity)
as per EU explosion protection directive (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.
Note on materials
RoHS-compliant
Material of spring
Spring steel
Material of screws
High-alloy stainless steel
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Mounting position
Any
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque at 0° swivel angle
7.2 Nm
Pneumatic connection
1/8 NPT
Seals material
NBR
Cam material
Cast stainless steel
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
Flange hole pattern
F05
Mode of operation
Single-acting
ATEX category gas
II 2G
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Torque at nominal operating pressure and 0° swivel angle
14.7 Nm
Spring return torque with 90° swivel angle
14.3 Nm
PFD
7.8E-4
Material of sub-base
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
Product weight
1419 g
Housing material
Wrought aluminum alloy, anodized

Related documents 8066439 Specs