8048141 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Design
  Gear rack/pinion
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• ATEX category for dust
  II 2D
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• Torque at nominal operating pressure and 0° swivel angle
  173.5 Nm
• Pneumatic connection
  G1/4
• Material of sub-base
  Wrought aluminum alloy, anodized
• Cam material
  Steel
• Devices type according to VDMA 66413
  Safety device
• Flange hole pattern
  F1012
• Type code
  DFPD
• 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
• 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)
• 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.
• Spring return torque with 90° swivel angle
  168.1 Nm
• Product weight
  17261 g
Seals material
NBR
Material of bearing
POM
Nominal operating pressure
3 bar
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Closing direction
Clockwise closing
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 2
ATEX category gas
II 2G
Ambient temperature
-20 °C ... 80 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
Note on materials
RoHS-compliant
Material of spring
Spring steel
Material of screws
High-alloy stainless steel
Size of valve actuator
480
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
Maritime classification
See certificate
Standard connection for valve
ISO 5211
Symbol
00991266
Type of ignition protection for gas
Ex h IIC T4 Gb X
Explosive ambient temperature
-20°C <= Ta <= +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
85 Nm
PFD
7.8E-4
Shaft connection
T27
Housing material
Wrought aluminum alloy, anodized
Shaft material
Steel, nickel-plated
Swivel angle
90 deg
Depth shaft connection
29 mm
Mode of operation
Single-acting
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
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Torque at nominal operating pressure and 90° swivel angle
90.5 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
17.2 l
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum

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