8102888 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• Maritime classification
  See certificate
• Depth shaft connection
  38 mm
• Design
  Gear rack/pinion
• ATEX category gas
  II 2G
• Type of ignition protection for gas
  Ex h IIC T4 Gb X
• 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)
• Torque at nominal operating pressure and 0° swivel angle
  356.2 Nm
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  31.5 l
• Pneumatic connection
  G1/4
• Material of spring
  Spring steel
• Housing material
  Wrought aluminum alloy, anodized
• Swivel angle
  90 deg
• Type code
  DFPD
• Standard connection for valve
  ISO 5211
• Closing direction
  Clockwise closing
• Type of (ignition) protection for dust
  Ex h IIIC T105°C Db 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)
• Spring return torque at 0° swivel angle
  179.6 Nm
Product weight
28395 g
Cover material
Die-cast aluminum, coated
Shaft material
High-alloy stainless steel
Nominal operating pressure
3.5 bar
PFH
1.01E-7
End-position adjusting range at 0°
-5 deg ... 5 deg
Mounting position
Any
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
ATEX category for dust
II 2D
Ambient temperature
-20 °C ... 80 °C
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.
PFD
7.8E-4
Seals material
NBR
Cam material
Steel
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F14
Mode of operation
Single-acting
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Spring return torque with 90° swivel angle
328.8 Nm
Shaft connection
T36
Note on materials
RoHS-compliant
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.
MTTFd
1126 years
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Symbol
00991266
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 3
Explosive ambient temperature
-20°C <= Ta <= +80°C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
Torque at nominal operating pressure and 90° swivel angle
207 Nm
Material of sub-base
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Material of screws
High-alloy stainless steel

Related documents 8102888 Specs