8102857 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  3.5 bar
• MTTFd
  1126 years
• Depth shaft connection
  24 mm
• Closing direction
  Clockwise closing
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• Ambient temperature
  -20 °C ... 80 °C
• Torque at nominal operating pressure and 0° swivel angle
  128.9 Nm
• Spring return torque at 0° swivel angle
  63.2 Nm
• PFD
  7.8E-4
• Material of sub-base
  Wrought aluminum alloy, anodized
• Shaft material
  High-alloy stainless steel
• Flange hole pattern
  F10
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Design
  Gear rack/pinion
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 2
• 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]
• 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°
  11 l
Note on materials
RoHS-compliant
Housing material
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel
Size of valve actuator
300
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
Swivel angle
90 deg
Standard connection for valve
ISO 5211
Mode of operation
Single-acting
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Storage temperature
-20 °C ... 60 °C
Shaft connection
T22
Material of spring
Spring steel
Cam material
Steel
Devices type according to VDMA 66413
Safety device
End-position adjusting range at 0°
-5 deg ... 5 deg
Type code
DFPD
Symbol
00991266
ATEX category gas
II 2G
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Product weight
12187 g
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Operating pressure
2 bar ... 8 bar
PFH
1.01E-7
Mounting position
Any
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
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
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)
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Torque at nominal operating pressure and 90° swivel angle
67.2 Nm
Spring return torque with 90° swivel angle
124.9 Nm
Pneumatic connection
G1/4
Seals material
NBR
Material of bearing
POM

Related documents 8102857 Specs