8102835 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  3.5 bar
• PFH
  1.01E-7
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Mounting position
  Any
• 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
• 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
  35.8 Nm
• PFD
  7.8E-4
• Material of sub-base
  Wrought aluminum alloy, anodized
• Material of bearing
  POM
• Material of screws
  High-alloy stainless steel
• Operating pressure
  2 bar ... 8 bar
• MTTFd
  1126 years
• Type code
  DFPD
• Mode of operation
  Single-acting
• ATEX category gas
  II 2G
• ATEX category for dust
  II 2D
Explosive ambient temperature
-20°C <= Ta <= +80°C
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Product weight
6863 g
Seals material
NBR
Material of spring
Spring steel
Size of valve actuator
160
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
Design
Gear rack/pinion
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
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
33.7 Nm
Pneumatic connection
1/4 NPT
Note on materials
RoHS-compliant
Material of piston
Die-cast aluminum
Cam material
Cast stainless steel
Flange hole pattern
F07
Standard connection for valve
ISO 5211
Symbol
00991266
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
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.
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
5.9 l
Cover material
Die-cast aluminum, coated
Housing material
Wrought aluminum alloy, anodized
Shaft material
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
Maritime classification
See certificate
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Depth shaft connection
24 mm
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
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
68.8 Nm
Spring return torque with 90° swivel angle
66.6 Nm
Shaft connection
T22

Related documents 8102835 Specs