8068933 Festo Quarter Turn Actuators

Product Details

• Devices type according to VDMA 66413
  Safety device
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Design
  Gear rack/pinion
• 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
• 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)
• Product weight
  30395 g
• Note on materials
  RoHS-compliant
• Housing material
  Wrought aluminum alloy, anodized
• Size of valve actuator
  900
• PFH
  1.01E-7
• Mode of operation
  Single-acting
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• Spring return torque with 90° swivel angle
  595 Nm
• 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.
Swivel angle
90 deg
Depth shaft connection
38 mm
Mounting position
Any
Type of ignition protection for gas
Ex h IIC T4 Gb X
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
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°
31.5 l
Pneumatic connection
1/4 NPT
Material of sub-base
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Cam material
Steel
Shaft material
Steel, nickel-plated
Nominal operating pressure
6 bar
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Type code
DFPD
Closing direction
Clockwise closing
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
Torque at nominal operating pressure and 90° swivel angle
323.6 Nm
Torque at nominal operating pressure and 0° swivel angle
593.5 Nm
Maritime classification
See certificate
Flange hole pattern
F14
Standard connection for valve
ISO 5211
Symbol
00991266
ATEX category gas
II 2G
ATEX category for dust
II 2D
Ambient temperature
-20 °C ... 80 °C
Storage temperature
-20 °C ... 60 °C
Spring return torque at 0° swivel angle
325.1 Nm
PFD
7.8E-4
Shaft connection
T36
Cover material
Die-cast aluminum, coated
Seals material
NBR
Material of screws
High-alloy stainless steel
Material of spring
Spring steel
Material of bearing
POM

Related documents 8068933 Specs