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Glossary · Valves & control

Valve

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Mechanical device installed in a piping system to regulate, stop, re-route or isolate fluid flow.

In modeling, valve flow resistance characteristics are defined using their K, Kf, Kv, or Cv values. Valve positioning data versus Cv or Kv can also be applied to accurately model valve performance.

In FluidFlow, these are the different valves that be placed in hydraulic models:

  • Butterfly
  • Diaphragm
  • Ball
  • Gate
  • Globe
  • Angle
  • Ball Float
  • Plug
  • Pinch
  • Y-Globe
  • Needle
  • Slide
  • Penstock
  • Fire Hydrant
  • Three Way

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