8048142 Festo Quarter Turn Actuators

Product Details

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

Related documents 8048142 Specs