8068941 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• PFH
  1.01E-7
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Mounting position
  Any
• Closing direction
  Clockwise closing
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• Storage temperature
  -20 °C ... 60 °C
• Torque at nominal operating pressure and 90° swivel angle
  885.2 Nm
• PFD
  7.8E-4
• Cover material
  Die-cast aluminum, coated
• Material of spring
  Spring steel
• 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.
• Maritime classification
  See certificate
• Nominal operating pressure
  6 bar
• Flange hole pattern
  F1216
• Depth shaft connection
  48 mm
• Design
  Gear rack/pinion
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
Torque at nominal operating pressure and 0° swivel angle
1523 Nm
Spring return torque with 90° swivel angle
1551 Nm
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel
Size of valve actuator
2300
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
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
Explosive ambient temperature
-20°C <= Ta <= +80°C
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque at 0° swivel angle
913.2 Nm
Shaft connection
T46
Seals material
NBR
Material of bearing
POM
MTTFd
1126 years
Standard connection for valve
ISO 5211
Symbol
00991266
ATEX category gas
II 2G
Ambient temperature
-20 °C ... 80 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
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)
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
84.4 l
Note on materials
RoHS-compliant
Material of piston
Die-cast aluminum
End-position adjusting range at 0°
-5 deg ... 5 deg
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Type of ignition protection for gas
Ex h IIC T4 Gb X
ATEX category for dust
II 2D
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.
Product weight
77884 g
Pneumatic connection
1/4 NPT
Housing material
Wrought aluminum alloy, anodized
Shaft material
Steel, nickel-plated
Cam material
Steel

Related documents 8068941 Specs