8066435 Festo Quarter Turn Actuators

Product Details

• Size of valve actuator
  20
• Devices type according to VDMA 66413
  Safety device
• Operating pressure
  2 bar ... 8 bar
• 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.
• Flange hole pattern
  F04
• Type code
  DFPD
• Mode of operation
  Single-acting
• 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 gas
  II 2G
• 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 0° swivel angle
  7.4 Nm
• Spring return torque with 90° swivel angle
  7.1 Nm
• Pneumatic connection
  1/8 NPT
• Seals material
  NBR
• Material of bearing
  POM
• Nominal operating pressure
  3 bar
• PFH
  1.01E-7
• Depth shaft connection
  12 mm
• Symbol
  00991266
ATEX category for dust
II 2D
Ambient temperature
-20 °C ... 80 °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.
PFD
7.8E-4
Shaft connection
T11
Material of sub-base
Wrought aluminum alloy, anodized
Housing material
Wrought aluminum alloy, anodized
Cam material
Cast stainless steel
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Design
Gear rack/pinion
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Explosive ambient temperature
-20°C <= Ta <= +80°C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
Spring return torque at 0° swivel angle
3.6 Nm
Product weight
1371 g
Note on materials
RoHS-compliant
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Swivel angle
90 deg
Standard connection for valve
ISO 5211
Closing direction
Clockwise closing
Type of ignition protection for gas
Ex h IIC T4 Gb X
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Torque at nominal operating pressure and 90° swivel angle
3.8 Nm
Shaft material
High-alloy stainless steel
Maritime classification
See certificate
End-position adjusting range at 0°
-5 deg ... 5 deg
Mounting position
Any
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
0.8 l
Material of spring
Spring steel
Material of screws
High-alloy stainless steel

Related documents 8066435 Specs