8047635 Festo Quarter Turn Actuators

Product Details

• Nominal operating pressure
  3 bar
• Maritime classification
  See certificate
• Swivel angle
  90 deg
• Mode of operation
  Single-acting
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 1
• Explosive ambient temperature
  -20°C <= Ta <= +80°C
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• Torque at nominal operating pressure and 0° swivel angle
  14 Nm
• Spring return torque with 90° swivel angle
  13.6 Nm
• Shaft connection
  T11
• Note on materials
  RoHS-compliant
• Material of screws
  High-alloy stainless steel
• Devices type according to VDMA 66413
  Safety device
• MTTFd
  1126 years
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Design
  Gear rack/pinion
• 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
• Ambient temperature
  -20 °C ... 80 °C
• 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 90° swivel angle
  7.3 Nm
PFD
7.8E-4
Pneumatic connection
G1/8
Housing material
Wrought aluminum alloy, anodized
Operating pressure
2 bar ... 8 bar
Flange hole pattern
F04
Type code
DFPD
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
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
Spring return torque at 0° swivel angle
6.9 Nm
Material of spring
Spring steel
Material of bearing
POM
Size of valve actuator
40
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.
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Closing direction
Clockwise closing
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
ATEX category for dust
II 2D
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Storage temperature
-20 °C ... 60 °C
Product weight
2087 g
Seals material
NBR
Material of sub-base
Wrought aluminum alloy, anodized
Cam material
Cast stainless steel
PFH
1.01E-7
Depth shaft connection
12 mm
Mounting position
Any
Symbol
00991266
ATEX category gas
II 2G
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)
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°
1.5 l
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Shaft material
Steel, nickel-plated

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