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  • The TA Failsafe System E 71 uses a backup voltage to activate the actuator should a power failure occur.

  • The TA FM System uses the power of a closing spring to operate the valve should a power failure occur.  
  • The TA FM System does not require the gear box of the actuator to move the valve into its safety position. The force of the spring is transmitted directly over the valve’s shaft. The valve can therefore move into the safety position should the actuator itself fail. This function complies to more extensive fail-safe demands to be met.