8066423 Festo Quarter Turn Actuators

Product Details

• Size of valve actuator
  20
• Depth shaft connection
  12 mm
• Design
  Gear rack/pinion
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• Storage temperature
  -20 °C ... 60 °C
• Shaft connection
  T11
• Note on materials
  RoHS-compliant
• Material of spring
  Spring steel
• Shaft material
  Steel, nickel-plated
• Devices type according to VDMA 66413
  Safety device
• Swivel angle
  90 deg
• Symbol
  00991266
• 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
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• Corrosion resistance class (CRC)
  2 - Moderate corrosion stress
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• Spring return torque with 90° swivel angle
  7.1 Nm
Pneumatic connection
1/8 NPT
Seals material
NBR
Cam material
Cast stainless steel
Material of screws
High-alloy stainless steel
Nominal operating pressure
3 bar
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
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
ATEX category gas
II 2G
Explosive ambient temperature
-20°C <= Ta <= +80°C
Torque at nominal operating pressure and 0° swivel angle
7.4 Nm
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°
0.8 l
Material of sub-base
Wrought aluminum alloy, anodized
Housing material
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Operating pressure
2 bar ... 8 bar
PFH
1.01E-7
Flange hole pattern
F04
Type code
DFPD
Mode of operation
Single-acting
Mounting position
Any
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)
Spring return torque at 0° swivel angle
3.6 Nm
Product weight
1371 g
PFD
7.8E-4
Cover material
Die-cast aluminum, coated
Material of bearing
POM
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
End-position adjusting range at 0°
-5 deg ... 5 deg
Closing direction
Clockwise closing
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
ATEX category for dust
II 2D
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Torque at nominal operating pressure and 90° swivel angle
3.8 Nm

Related documents 8066423 Specs