BERNARD Electric Actuator – FSE FAIL SAFE Type

Operation: ON/OFF or modulating
Application area: Industrial automation applications
For:

• Quarter-turn valves with torques from 25 to 600,000 Nm

• Linear valves with forces from 1.2 to 8,000 kN

FAIL SAFE Function – ON/OFF version includes:

• FAIL SAFE function: automatic movement of the electric actuator to the safety position (normally closed or open) in case of power loss or external electrical signal

• Safety function is mechanically ensured via spring release, without external intervention

• Local or remote control selectable via push-buttons

• Command/alarm display

• ESD system (Emergency Shut Down): remote control with signal override over all other commands

• PST system (Partial Stroke Test): remote verification of valve readiness via short movement of the shut-off element

• SIL 2 or SIL 3 certification

• Manual emergency operation via hand hydraulic pump

Additional features – Modulating version includes:

• Integrated positioner module

• Command/feedback: 4-20 mA

• Local or remote control selectable via push-buttons

Actuation: Electric actuation: 220V – 400V – 690V AC / DC, 50Hz or 60Hz