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A diaphragm pump is a positive displacement, generally alternative, in which the pressure increase comes from the thrust of the diaphragms that vary the chamber volume, increasing and decreasing it alternatively. Retaining valves usually elastomer balls, control the product flow making it move from the lower pressure area to the higher pressure area.

Advantages of diaphragm pumps

These pumps´ drive can be:

  • Electric, using an electric motor.
  • Air, using compressed air.