Transient flow analysis by KSB – precise data for reliable system operation

Transient flow analysis in the planning phase is essential for optimum pumping station availability. KSB performs precision transient flow analyses and advises customers on surge control solutions.

water_hammer_img Pressure surges are dynamic changes in pressure which occur as a result of transient flow conditions. Although changes in pressure cannot be avoided altogether in pumping stations they have to be kept within permissible limits by means of appropriate control systems. KSB selects these surge control systems on the basis of precise transient flow or surge analysis.

Why are surge control systems so important for pumping stations?

Surge control systems prevent mechanical overloading of hydromechanical system components. They are the only way to ensure pumping stations provide optimum and reliable operation over decades.

This is how KSB performs transient flow analysis:

Drawing on years of experience, KSB’s experts determine the ideal technical and economic parameters for adequate surge control as early as in the planning phase. To run a transient flow analysis, comprehensive information and data on the hydraulic system are required, including:

  • Piping layout (length, altitude)
  • Pipe diameter
  • Flow rates
  • Operating conditions

Once the analysis is complete, KSB‘s experts prepare an individual report for each customer. Together with the customer, KSB develops the optimum surge control solutions.

The most important surge control systems at a glance:

  • Accumulators with gas cushion (air vessels)
  • Flywheels fitted to the pumps
  • Vent valves
  • Swing check valves
  • Surge tank (standpipe)
Additional Information

KSB Know-how – Water hammer

Water hammer

Water hammerKSB Know-how, Volume 13 MB