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For a piston pump you can calculate/measure things like,

  • Average Volume flow rate (m³/s)
  • Geometric Values (Surface)
  • Pressure over time
  • closing times of the valves
  • energy conversion efficiency $\eta$

besides those, what charateristic values are there?

enter image description here (example of a type of piston pump source)

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    $\begingroup$ Are you looking for other ways to identify or classify the pumps? $\endgroup$ – Trevor Archibald Jan 23 '15 at 21:14
  • $\begingroup$ Im looking for other values beside the described - You can use those to classify a pump, certainly. Or gauge the quality of a pump (in the case of energy conversion efficiency). $\endgroup$ – John H. K. Jan 23 '15 at 21:17
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Here are some other criteria:

  • Cycle time
  • Piston speed
  • Piston friction
  • Device lifespan (most likely a function of the number of cycles completed)
  • Number of suction/discharge ports
  • Type of valves used

Hope that helps!

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