8066451 Festo Quarter Turn Actuators

Product Details

• Size of valve actuator
  240
• 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
• Mode of operation
  Single-acting
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• ATEX category gas
  II 2G
• CE marking (see declaration of conformity)
  as per EU explosion protection directive (ATEX)
• Torque at nominal operating pressure and 0° swivel angle
  171.6 Nm
• Torque at nominal operating pressure and 90° swivel angle
  89.5 Nm
• Product weight
  10036 g
• Seals material
  NBR
• Housing material
  Wrought aluminum alloy, anodized
• Material of spring
  Spring steel
• Operating pressure
  2 bar ... 8 bar
• Maritime classification
  See certificate
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Mounting position
  Any
• 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
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db X
Storage temperature
-20 °C ... 60 °C
Spring return torque at 0° swivel angle
84 Nm
Pneumatic connection
1/4 NPT
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
Depth shaft connection
24 mm
Design
Gear rack/pinion
Symbol
00991266
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)
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°
8.6 l
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Material of screws
High-alloy stainless steel
Flange hole pattern
F0710
Standard connection for valve
ISO 5211
Closing direction
Clockwise closing
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
PFD
7.8E-4
Note on materials
RoHS-compliant
Material of bearing
POM
Nominal operating pressure
6 bar
MTTFd
1126 years
End-position adjusting range at 0°
-5 deg ... 5 deg
Type code
DFPD
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
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque with 90° swivel angle
166.1 Nm
Shaft connection
T22
Material of sub-base
Wrought aluminum alloy, anodized
Cam material
Steel
Shaft material
Steel, nickel-plated

Related documents 8066451 Specs