Distribution of Liquids or Gases

The basic motivation for controlling on the basis of selecting the most open valve (MOV) is that by opening the user valves, the pressure drops, and therefore, the transportation energy requirement is reduced. The MOV control systems operate by opening all user valves until one of them approaches full opening. This way, all loads are satisfied, yet a minimum of transport energy is invested. 

Post-Oil Energy Technology After the Age of Fossil Fuels 

In this configuration, the flows to the individual users are controlled, while the compressor discharge pressure and therefore its power consumption is minimized. 

When suction dampers or guide vane controls are used instead of variable-speed controls, reciprocal gain compensation is recommended due to the 

Water distribution can be controlled automatically while minimizing pumping costs. 

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