Soft pressure build-up

The 'Soft pressure build-up' function ensures a smooth start-up of systems containing empty pipes, for example.

CU 351 incorporates a ‘Soft pressure build-up’ function
The function ensures a smooth start-up of systems containing empty pipes, for example.
It can be used in applications such as:

  • Irrigation
  • Water supply installations with an unstable power supply, in order to reduce water hammer.

Start-up takes place in two phases as the illustration shows. 

  1. Filling phase
    The pipework is slowly filled with water. When the pressure sensor of the system detects that the pipework has been filled, phase two begins. 
     
  2. Pressure build-up phase
    The system pressure is increased until the setpoint is reached. The pressure build-up takes place over a ramp time. If the setpoint is not reached within a given time, a warning or an alarm can be given, and the pumps can be stopped at the same time.

 Benefits

  • Reduced water hammer effect
  • Increased comfort and security for consumer

 





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