8068937 Festo Quarter Turn Actuators

Product Details

• Devices type according to VDMA 66413
  Safety device
• Flange hole pattern
  F14
• Standard connection for valve
  ISO 5211
• Operating pressure
  2 bar ... 8 bar
• MTTFd
  1126 years
• Swivel angle
  90 deg
• Depth shaft connection
  38 mm
• Mode of operation
  Single-acting
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• Explosive ambient temperature
  -20°C <= Ta <= +80°C
• 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)
• Product weight
  43022 g
• Nominal operating pressure
  6 bar
• PFH
  1.01E-7
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Mounting position
  Any
• Symbol
  00991266
• Safety integrity level (SIL)
  Up to SIL 2 low demand mode up to SIL 1 high demand mode
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 0° swivel angle
796.3 Nm
PFD
7.8E-4
Shaft connection
T36
Seals material
NBR
Material of screws
High-alloy stainless 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.
Type code
DFPD
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 3
Type of ignition protection for gas
Ex h IIC T4 Gb X
Ambient temperature
-20 °C ... 80 °C
Torque at nominal operating pressure and 90° swivel angle
477.2 Nm
Spring return torque at 0° swivel angle
479.4 Nm
Pneumatic connection
1/4 NPT
Housing material
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Size of valve actuator
1200
Maritime classification
See certificate
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Design
Gear rack/pinion
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
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Storage temperature
-20 °C ... 60 °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°
43.5 l
Cover material
Die-cast aluminum, coated
Closing direction
Clockwise closing
ATEX category gas
II 2G
ATEX category for dust
II 2D
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)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque with 90° swivel angle
798.6 Nm
Material of sub-base
Wrought aluminum alloy, anodized
Material of spring
Spring steel
Shaft material
Steel, nickel-plated
Note on materials
RoHS-compliant
Cam material
Steel
Material of bearing
POM

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