Pulsation damping made easy

Paul Boughton

The oscillating piston movements of the positive displacement pumps produce pressure peaks with uneven volume flows in the pressure pipe: this has a negative effect on the plant and the pump.

In today’s processes, it is important to achieve optimum pulsation damping even under changing operating pressure levels. Up to now, this was only possible at extra costs.

In order to minimise pulsation in a process even under changing operating pressure levels, the damping volume must be adapted in the damper, or several dampers have to be used with differing damping volumes. The intelligent pulsation damper by Abel does this automatically and adapts to changing conditions. In doing so, it does not need any additional auxiliary energy. All that is required is a connection to a corresponding compressed air network.

Advantages include:

  • Improved efficiency and enhanced quiet running of the positive displacement pump.
  • Low-pulsation flow and reduced vibrations. 
  • Relatively uniform volume flow.
  • No leaks in the plant.

A scanning device registers the load condition of the damper. If the load is above or below the range of optimum damping, a control signal is sent to a pneumatic way-valve which is used to load and unload the damper. This holds a constant balance between operating pressure and the required pressure of the damping volume.

ABEL GmbH & Co KG is based in Buechen, Germany. www.abel.de

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