8047643 Festo Quarter Turn Actuators

Product Details

• ATEX category gas
  II 2G
• 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 0°
  -5 deg ... 5 deg
• Closing direction
  Clockwise closing
• Mode of operation
  Single-acting
• PFH
  1.01E-7
• Type code
  DFPD
• Mounting position
  Any
• Explosive ambient temperature
  -20°C <= Ta <= +80°C
• 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.
• Air consumption at 6 bar per cycle 0°-nominal swivel angle-0°
  1.5 l
• Material of spring
  Spring steel
• Cam material
  Cast stainless steel
• Nominal operating pressure
  6 bar
• MTTFd
  1126 years
• End-position adjusting range at nominal swivel angle
  -5 deg ... 5 deg
• Standard connection for valve
  ISO 5211
• Valve connection conforms to standard
  VDI/VDE 3845 (NAMUR)
• 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
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
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)
Spring return torque at 0° swivel angle
13.8 Nm
Shaft connection
T11
Material of bearing
POM
Size of valve actuator
40
Devices type according to VDMA 66413
Safety device
Flange hole pattern
F04
Depth shaft connection
12 mm
Symbol
00991266
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
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Torque at nominal operating pressure and 0° swivel angle
28 Nm
PFD
7.8E-4
Note on materials
RoHS-compliant
Cover material
Die-cast aluminum, coated
Material of piston
Die-cast aluminum
Operating pressure
2 bar ... 8 bar
Maritime classification
See certificate
Swivel angle
90 deg
Design
Gear rack/pinion
Connection for valve positioner and position sensor conforms to standard
VDI/VDE 3845 size AA 1
ATEX category for dust
II 2D
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
Storage temperature
-20 °C ... 60 °C
Pneumatic connection
G1/8
Seals material
NBR
Shaft material
High-alloy stainless steel
Type of (ignition) protection for dust
Ex h IIIC T105°C Db X
Certificate issuing authority
DNVGL TAP00001CE German Technical Control Board (TÜV) Rheinland 968/V 1106.00/19
Torque at nominal operating pressure and 90° swivel angle
14.5 Nm
Spring return torque with 90° swivel angle
27.2 Nm
Product weight
2180 g
Material of sub-base
Wrought aluminum alloy, anodized
Housing material
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel

Related documents 8047643 Specs