8102844 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  6 bar
• MTTFd
  1126 years
• Type code
  DFPD
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 2
• Ambient temperature
  -20 °C ... 80 °C
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• Spring return torque with 90° swivel angle
  166.1 Nm
• Product weight
  10053 g
• Cover material
  Die-cast aluminum, coated
• Material of piston
  Die-cast aluminum
• Shaft material
  High-alloy stainless steel
• Operating pressure
  2 bar ... 8 bar
• PFH
  1.01E-7
• End-position adjusting range at nominal swivel angle
  -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
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• 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)
Storage temperature
-20 °C ... 60 °C
Torque at nominal operating pressure and 0° swivel angle
171.6 Nm
Shaft connection
T22
Housing material
Wrought aluminum alloy, anodized
Devices type according to VDMA 66413
Safety device
Maritime classification
See certificate
Depth shaft connection
24 mm
Mounting position
Any
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
ATEX category for dust
II 2D
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Torque at nominal operating pressure and 90° swivel angle
89.5 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
8.6 l
Material of sub-base
Wrought aluminum alloy, anodized
Material of spring
Spring steel
Cam material
Steel
Swivel angle
90 deg
Flange hole pattern
F10
Design
Gear rack/pinion
Symbol
00991266
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
PFD
7.8E-4
Pneumatic connection
G1/4
Material of screws
High-alloy stainless steel
Size of valve actuator
240
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
Mode of operation
Single-acting
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
ATEX category gas
II 2G
Explosive ambient temperature
-20°C <= Ta <= +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.
Spring return torque at 0° swivel angle
84 Nm
Note on materials
RoHS-compliant
Seals material
NBR
Material of bearing
POM

8102844 Related Documents