8084141 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• MTTFd
  1126 years
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Flange hole pattern
  F1012
• Mode of operation
  Single-acting
• Closing direction
  Clockwise closing
• 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)
• Torque at nominal operating pressure and 90° swivel angle
  323.6 Nm
• Spring return torque with 90° swivel angle
  595 Nm
• Note on materials
  RoHS-compliant
• Cover material
  Die-cast aluminum, coated
• Material of piston
  Die-cast aluminum
• Shaft material
  High-alloy stainless steel
• Devices type according to VDMA 66413
  Safety device
• Maritime classification
  See certificate
• Depth shaft connection
  29 mm
• Design
  Gear rack/pinion
• 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
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 0° swivel angle
593.5 Nm
Spring return torque at 0° swivel angle
325.1 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
31.5 l
Material of sub-base
Wrought aluminum alloy, anodized
Material of bearing
POM
Size of valve actuator
900
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.
Swivel angle
90 deg
Type code
DFPD
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 3
ATEX category for dust
II 2D
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
1/4 NPT
Seals material
NBR
Cam material
Steel
Mounting position
Any
Symbol
00991266
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)
Storage temperature
-20 °C ... 60 °C
Product weight
30395 g
Housing material
Wrought aluminum alloy, anodized
Nominal operating pressure
6 bar
PFH
1.01E-7
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
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
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
PFD
7.8E-4
Shaft connection
T27
Material of spring
Spring steel
Material of screws
High-alloy stainless steel

Related documents 8084141 Specs