8102864 Festo Quarter Turn Actuators

Product Details

• 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
• Standard connection for valve
  ISO 5211
• Closing direction
  Clockwise closing
• ATEX category gas
  II 2G
• ATEX category for dust
  II 2D
• Explosive ambient temperature
  -20°C <= Ta <= +80°C
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• Spring return torque at 0° swivel angle
  127.5 Nm
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  17.2 l
• Material of piston
  Die-cast aluminum
• Size of valve actuator
  480
• PFH
  1.01E-7
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Type code
  DFPD
• 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 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
  260.3 Nm
• PFD
  7.8E-4
Note on materials
RoHS-compliant
Material of spring
Spring steel
Material of screws
High-alloy stainless steel
Nominal operating pressure
4.5 bar
Maritime classification
See certificate
Depth shaft connection
29 mm
Mode of operation
Single-acting
Type of ignition protection for gas
Ex h IIC T4 Gb X
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Storage temperature
-20 °C ... 60 °C
Spring return torque with 90° swivel angle
252.1 Nm
Shaft connection
T27
Seals material
NBR
Cam material
Steel
Operating pressure
2 bar ... 8 bar
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Design
Gear rack/pinion
Symbol
00991266
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 2
Ambient temperature
-20 °C ... 80 °C
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
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
17906 g
Cover material
Die-cast aluminum, coated
Material of bearing
POM
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F12
Mounting position
Any
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Torque at nominal operating pressure and 90° swivel angle
135.7 Nm
Pneumatic connection
1/4 NPT
Material of sub-base
Wrought aluminum alloy, anodized
Housing material
Wrought aluminum alloy, anodized
Shaft material
High-alloy stainless steel

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