8102894 Festo Quarter Turn Actuators

Product Details

• Cam material
  Steel
• Devices type according to VDMA 66413
  Safety device
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Type code
  DFPD
• 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
• Corrosion resistance class (CRC)
  2 - Moderate corrosion stress
• Torque at nominal operating pressure and 90° swivel angle
  207 Nm
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  31.5 l
• Material of sub-base
  Wrought aluminum alloy, anodized
• 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.
• Mounting position
  Any
• Standard connection for valve
  ISO 5211
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• ATEX category for dust
  II 2D
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• 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)
• 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
Pneumatic connection
G1/4
Material of spring
Spring steel
MTTFd
1126 years
Flange hole pattern
F14
Design
Gear rack/pinion
ATEX category gas
II 2G
Explosive ambient temperature
-20°C <= Ta <= +80°C
Storage temperature
-20 °C ... 60 °C
Product weight
28184 g
Seals material
NBR
Material of bearing
POM
Material of screws
High-alloy stainless steel
Nominal operating pressure
3.5 bar
PFH
1.01E-7
Maritime classification
See certificate
Depth shaft connection
38 mm
Symbol
00991266
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Ambient temperature
-20 °C ... 80 °C
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 with 90° swivel angle
328.8 Nm
Shaft connection
T36
Housing material
Wrought aluminum alloy, anodized
Shaft material
High-alloy stainless steel
Size of valve actuator
900
Swivel angle
90 deg
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Mode of operation
Single-acting
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Type of ignition protection for gas
Ex h IIC T4 Gb X
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 0° swivel angle
356.2 Nm
Spring return torque at 0° swivel angle
179.6 Nm
Note on materials
RoHS-compliant
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum

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