• Spring return mechanism for moving the valve to the fail safe position
• Epicyclic gear reduction to increment the output torque of the electric actuator
• Electro-magnetic clutch
• Low pressure hydraulic control group for manual operation and operating speed regulation
• Non-intrusive configuration
• User-friendly push-button panel for operation, setting and diagnostics
• Bluetooth™ wireless connectivity
• Advanced maintenance data and alarm reports
• Valve condition monitoring
• Configurable ‘data logger’ function for maintenance and diagnostic programs in recorder or event modes
• User adjustable numeric and graphic displays with 8 language options
• Double sealed terminal block
• Digital contactless torque and position sensing
• Advanced open bus communication protocols:
  • Lonworks
  • Profibus DPV0, DPV1 and redundant DPV1
  • Foundation Fieldbus
  • Modbus
  • Hart
• Certified for use in SIL 3 applications

General application 

The EFS 2000 is available in eight sizes and is designed for on/off or inching operation of valves on safety critical applications in the oil & gas, process and general industry sectors, where conventional pneumatic or hydraulic power supply to fail safe actuators is unavailable. 

Approvals
Waterproof: IP68 / IP68 (EN 60529) 
Explosionproof: Ex-d IIB T4 Gb (Gas) and c Ex tb IIIC T135°C Db (Dust) 
Safety integrity level 
(IEC 61508-1÷7:2010) - SIL3 

Technical data 
Power supply: 3 phase from 208 V to 690 V at 50 /60 Hz 
1 phase from 110 V to 240 V at 50 /60 Hz 
DC (Direct current) from 24 V to 110 V 

Torque output: Spring starting torque up to 18000 Nm 
Spring ending torque up to 9000 Nm 
Electric mode starting torque up to 25500 Nm 
Electric mode ending torque up to 12500 Nm 

Ambient temperature 
Standard range: -20°C to +85°C 
Extended temperature ranges available