8102895 Festo Quarter Turn Actuators

Product Details

• Operating pressure
  2 bar ... 8 bar
• PFH
  1.01E-7
• Depth shaft connection
  38 mm
• Mode of operation
  Single-acting
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• ATEX category for dust
  II 2D
• Ambient temperature
  -20 °C ... 80 °C
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• Torque at nominal operating pressure and 90° swivel angle
  256.8 Nm
• Spring return torque with 90° swivel angle
  432.1 Nm
• Pneumatic connection
  G1/4
• Nominal operating pressure
  4.5 bar
• Flange hole pattern
  F14
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Design
  Gear rack/pinion
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 3
• 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)
• Corrosion resistance class (CRC)
  2 - Moderate corrosion stress
• 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.
Devices type according to VDMA 66413
Safety device
Maritime classification
See certificate
Swivel angle
90 deg
Type code
DFPD
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
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)
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Torque at nominal operating pressure and 0° swivel angle
452.8 Nm
PFD
7.8E-4
Note on materials
RoHS-compliant
Housing material
Wrought aluminum alloy, anodized
Size of valve actuator
900
MTTFd
1126 years
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
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
Spring return torque at 0° swivel angle
236.1 Nm
Shaft connection
T36
Cover material
Die-cast aluminum, coated
Material of bearing
POM
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
Symbol
00991266
ATEX category gas
II 2G
Explosive ambient temperature
-20°C <= Ta <= +80°C
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Storage temperature
-20 °C ... 60 °C
Product weight
28988 g
Seals material
NBR
Cam material
Steel
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
31.5 l
Material of sub-base
Wrought aluminum alloy, anodized
Material of piston
Die-cast aluminum
Material of spring
Spring steel
Shaft material
High-alloy stainless steel
Material of screws
High-alloy stainless steel

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