8048152 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  6 bar
• Operating pressure
  2 bar ... 8 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.
• Swivel angle
  90 deg
• Design
  Gear rack/pinion
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Mode of operation
  Single-acting
• Symbol
  00991266
• ATEX category for dust
  II 2D
• Ambient temperature
  -20 °C ... 80 °C
• Storage temperature
  -20 °C ... 60 °C
• Pneumatic connection
  G1/4
• Cover material
  Die-cast aluminum, coated
• Housing material
  Wrought aluminum alloy, anodized
• Shaft material
  High-alloy stainless steel
• Devices type according to VDMA 66413
  Safety device
• PFH
  1.01E-7
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Type code
  DFPD
Standard connection for valve
ISO 5211
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
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 90° swivel angle
181 Nm
Product weight
18485 g
Note on materials
RoHS-compliant
Cam material
Steel
Size of valve actuator
480
MTTFd
1126 years
Flange hole pattern
F1012
Depth shaft connection
29 mm
Closing direction
Clockwise closing
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 2
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
170 Nm
Spring return torque with 90° swivel angle
336.1 Nm
Seals material
NBR
Material of piston
Die-cast aluminum
Maritime classification
See certificate
Mounting position
Any
ATEX category gas
II 2G
Explosive ambient temperature
-20°C <= Ta <= +80°C
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.
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
17.2 l
Shaft connection
T27
Material of spring
Spring steel
Material of bearing
POM
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
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Torque at nominal operating pressure and 0° swivel angle
347.1 Nm
PFD
7.8E-4
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel

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