8047645 Festo Quarter Turn Actuators

8047645 Product Details

• Operating pressure
  2 bar ... 8 bar
• Devices type according to VDMA 66413
  Safety device
• Maritime classification
  See certificate
• Mounting position
  Any
• Mode of operation
  Single-acting
• 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
• Certificate issuing authority
  DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Standard connection for valve
  ISO 5211
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 1
• ATEX category for dust
  II 2D
• Corrosion resistance class (CRC)
  2 - Moderate corrosion stress
• Torque at nominal operating pressure and 0° swivel angle
  14.7 Nm
• Spring return torque with 90° swivel angle
  14.3 Nm
• Cover material
  Die-cast aluminum, coated
• Material of piston
  Die-cast aluminum
• Material of bearing
  POM
• Size of valve actuator
  20
Flange hole pattern
F03
Depth shaft connection
10 mm
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Closing direction
Clockwise closing
ATEX category gas
II 2G
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Spring return torque at 0° swivel angle
7.2 Nm
PFD
7.8E-4
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless 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.
PFH
1.01E-7
Design
Gear rack/pinion
Safety integrity level (SIL)
Up to SIL 2 low demand mode up to SIL 1 high demand mode
Explosive ambient temperature
-20°C <= Ta <= +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)
Storage temperature
-20 °C ... 60 °C
Product weight
1419 g
Shaft connection
T9
Seals material
NBR
Shaft material
Steel, nickel-plated
Nominal operating pressure
6 bar
MTTFd
1126 years
Swivel angle
90 deg
Type code
DFPD
Symbol
00991266
Type of ignition protection for gas
Ex h IIC T4 Gb X
Ambient temperature
-20 °C ... 80 °C
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Torque at nominal operating pressure and 90° swivel angle
7.6 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
0.8 l
Note on materials
RoHS-compliant
Cam material
Cast stainless steel
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.
Pneumatic connection
G1/8
Material of spring
Spring steel
Housing material
Wrought aluminum alloy, anodized

Product condition

Related documents 8047645 Specs