8066431 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  6 bar
• Maritime classification
  See certificate
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Mounting position
  Any
• Closing direction
  Clockwise closing
• MTTFd
  1126 years
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Mode of operation
  Single-acting
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 1
• ATEX category for dust
  II 2D
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• 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)
• Product weight
  2180 g
• Seals material
  NBR
• Material of bearing
  POM
• Operating pressure
  2 bar ... 8 bar
• PFH
  1.01E-7
• Type code
  DFPD
• Design
  Gear rack/pinion
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
Ambient temperature
-20 °C ... 80 °C
Storage temperature
-20 °C ... 60 °C
Torque at nominal operating pressure and 0° swivel angle
28 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
1.5 l
Note on materials
RoHS-compliant
Material of piston
Die-cast aluminum
Shaft material
Steel, nickel-plated
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
Depth shaft connection
16 mm
Symbol
00991266
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Explosive ambient temperature
-20°C <= Ta <= +80°C
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque with 90° swivel angle
27.2 Nm
Pneumatic connection
1/8 NPT
Cam material
Cast stainless steel
Size of valve actuator
40
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.
Flange hole pattern
F0507
Standard connection for valve
ISO 5211
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
ATEX category gas
II 2G
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 90° swivel angle
14.5 Nm
Spring return torque at 0° swivel angle
13.8 Nm
Shaft connection
T14
Material of spring
Spring steel
Housing material
Wrought aluminum alloy, anodized
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)
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
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.
PFD
7.8E-4
Material of sub-base
Wrought aluminum alloy, anodized
Cover material
Die-cast aluminum, coated
Material of screws
High-alloy stainless steel

Related documents 8066431 Specs