8048145 Festo Quarter Turn Actuators

Product Details

• Maritime classification
  See certificate
• Type code
  DFPD
• Closing direction
  Clockwise closing
• Symbol
  00991266
• ATEX category gas
  II 2G
• 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)
• Spring return torque with 90° swivel angle
  57.1 Nm
• Seals material
  NBR
• Material of screws
  High-alloy stainless steel
• Operating pressure
  2 bar ... 8 bar
• MTTFd
  1126 years
• Depth shaft connection
  24 mm
• Design
  Gear rack/pinion
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• Operating medium
  Compressed air as per ISO 8573-1:2010 [7:4:4]
• Corrosion resistance class (CRC)
  2 - Moderate corrosion stress
• Storage temperature
  -20 °C ... 60 °C
• Product weight
  6767 g
• Shaft connection
  T22
Material of bearing
POM
Shaft material
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
PFH
1.01E-7
Swivel angle
90 deg
Mounting position
Any
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
Ambient temperature
-20 °C ... 80 °C
Torque at nominal operating pressure and 0° swivel angle
59 Nm
PFD
7.8E-4
Pneumatic connection
G1/4
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Nominal operating pressure
3 bar
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
F0710
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Mode of operation
Single-acting
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
ATEX category for dust
II 2D
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (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.
Torque at nominal operating pressure and 90° swivel angle
30.7 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
5.9 l
Material of sub-base
Wrought aluminum alloy, anodized
Housing material
Wrought aluminum alloy, anodized
Cam material
Cast stainless steel
Size of valve actuator
160
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
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
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
28.9 Nm
Note on materials
RoHS-compliant
Material of spring
Spring steel

Related documents 8048145 Specs