8066437 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.
• PFH
  1.01E-7
• Standard connection for valve
  ISO 5211
• Symbol
  00991266
• 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
• 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.
• Pneumatic connection
  1/8 NPT
• Seals material
  NBR
• Cam material
  Cast stainless steel
• Size of valve actuator
  20
• MTTFd
  1126 years
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• 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
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• Storage temperature
  -20 °C ... 60 °C
• Note on materials
  RoHS-compliant
Housing material
Wrought aluminum alloy, anodized
Operating pressure
2 bar ... 8 bar
Maritime classification
See certificate
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Type code
DFPD
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
Type of ignition protection for gas
Ex h IIC T4 Gb X
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Torque at nominal operating pressure and 0° swivel angle
14.7 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
0.8 l
Cover material
Die-cast aluminum, coated
Material of bearing
POM
Nominal operating pressure
6 bar
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
Mode of operation
Single-acting
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Explosive ambient temperature
-20°C <= Ta <= +80°C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Spring return torque at 0° swivel angle
7.2 Nm
PFD
7.8E-4
Shaft connection
T9
Material of spring
Spring steel
Material of piston
Die-cast aluminum
Shaft material
High-alloy stainless steel
Flange hole pattern
F03
Depth shaft connection
10 mm
Design
Gear rack/pinion
Closing direction
Clockwise closing
ATEX category gas
II 2G
Ambient temperature
-20 °C ... 80 °C
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 90° swivel angle
7.6 Nm
Spring return torque with 90° swivel angle
14.3 Nm
Product weight
1419 g
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel

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