8047646 Festo Quarter Turn Actuators

Product Details

• Swivel angle
  90 deg
• Operating pressure
  2 bar ... 8 bar
• MTTFd
  1126 years
• Type code
  DFPD
• Design
  Gear rack/pinion
• ATEX category for dust
  II 2D
• Explosion prevention and protection
  Zone 1 (ATEX) Zone 22 (ATEX)
• Torque at nominal operating pressure and 0° swivel angle
  7.4 Nm
• Product weight
  1371 g
• Cover material
  Die-cast aluminum, coated
• Material of piston
  Die-cast aluminum
• Cam material
  Cast stainless steel
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• 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
• 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.
• Spring return torque at 0° swivel angle
  3.6 Nm
• Material of spring
  Spring steel
Shaft material
High-alloy stainless steel
Size of valve actuator
20
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F03
End-position adjusting range at 0°
-5 deg ... 5 deg
Standard connection for valve
ISO 5211
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
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
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 90° swivel angle
3.8 Nm
Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
0.8 l
Note on materials
RoHS-compliant
Pneumatic connection
G1/8
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
Mode of operation
Single-acting
ATEX category gas
II 2G
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
PFD
7.8E-4
Seals material
NBR
Housing material
Wrought aluminum alloy, anodized
Nominal operating pressure
3 bar
Maritime classification
See certificate
Depth shaft connection
10 mm
Mounting position
Any
Symbol
00991266
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Ambient temperature
-20 °C ... 80 °C
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Storage temperature
-20 °C ... 60 °C
Spring return torque with 90° swivel angle
7.1 Nm
Shaft connection
T9
Material of sub-base
Wrought aluminum alloy, anodized
Material of bearing
POM

Related documents 8047646 Specs