8048134 Festo Quarter Turn Actuators

Product Details

• Size of valve actuator
  120
• 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.
• Flange hole pattern
  F0507
• Closing direction
  Clockwise closing
• Connection for valve positioner and position sensor conforms to standard
  VDI/VDE 3845 size AA 1
• 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
• 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)
• Shaft connection
  T17
• Cover material
  Die-cast aluminum, coated
• Housing material
  Wrought aluminum alloy, anodized
• Maritime classification
  See certificate
• End-position adjusting range at 0°
  -5 deg ... 5 deg
• Mounting position
  Any
• Standard connection for valve
  ISO 5211
• ATEX category gas
  II 2G
• ATEX category for dust
  II 2D
• Ambient temperature
  -20 °C ... 80 °C
• Storage temperature
  -20 °C ... 60 °C
• Torque at nominal operating pressure and 0° swivel angle
  86 Nm
Spring return torque at 0° swivel angle
42.1 Nm
Pneumatic connection
G1/4
Seals material
NBR
Cam material
Cast stainless steel
Operating pressure
2 bar ... 8 bar
PFH
1.01E-7
Type code
DFPD
Symbol
00991266
Valve connection conforms to standard
VDI/VDE 3845 (NAMUR)
Explosion prevention and protection
Zone 1 (ATEX) Zone 22 (ATEX)
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
PFD
7.8E-4
Material of sub-base
Wrought aluminum alloy, anodized
Material of screws
High-alloy stainless steel
Devices type according to VDMA 66413
Safety device
Swivel angle
90 deg
End-position adjusting range at nominal swivel angle
-5 deg ... 5 deg
Mode of operation
Single-acting
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
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°
4.3 l
Product weight
5736 g
Material of bearing
POM
Shaft material
Steel, nickel-plated
Nominal operating pressure
6 bar
MTTFd
1126 years
Depth shaft connection
19 mm
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
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]
Torque at nominal operating pressure and 90° swivel angle
44.8 Nm
Spring return torque with 90° swivel angle
83.3 Nm
Note on materials
RoHS-compliant
Material of spring
Spring steel
Material of piston
Die-cast aluminum

Related documents 8048134 Specs