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2. Vacuum pump - Wikipedia

   en.wikipedia.org/wiki/Vacuum_pump

   The height of the column was then limited to the maximum weight that atmospheric pressure could support; this is the limiting height of a suction pump. [8] In 1650, Otto von Guericke invented the first vacuum pump. [9]

3. Net positive suction head - Wikipedia

   en.wikipedia.org/wiki/Net_positive_suction_head

   If an NPSH A is say 10 bar then the pump you are using will deliver exactly 10 bar more over the entire operational curve of a pump than its listed operational curve. Example: A pump with a max. pressure head of 8 bar (80 metres) will actually run at 18 bar if the NPSH A is 10 bar. i.e.: 8 bar (pump curve) plus 10 bar NPSH A = 18 bar.

4. Vacuum truck - Wikipedia

   en.wikipedia.org/wiki/Vacuum_truck

   An inherent suction limitation of all suction pumps is that they can only lift a liquid through utilizing atmospheric pressure. For pure water the theoretical maximum lift is approximately 10.3 metres (34 ft). [4]

5. Total dynamic head - Wikipedia

   en.wikipedia.org/wiki/Total_dynamic_head

   In fluid dynamics, total dynamic head (TDH) is the work to be done by a pump, per unit weight, per unit volume of fluid.TDH is the total amount of system pressure, measured in feet, where water can flow through a system before gravity takes over, and is essential for pump specification.

6. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   The total pressure may have gravitational, static pressure and kinetic energy components; i.e. energy is distributed between change in the fluid's gravitational potential energy (going up or down hill), change in velocity, or change in static pressure. η is the pump efficiency, and may be given by the manufacturer's information, such as in the ...

7. Draft (water) - Wikipedia

   en.wikipedia.org/wiki/Draft_(water)

   Standard atmospheric pressure is 101 kPa (14.7 lbf/in 2) and that can only raise water to a theoretical maximum of 10.3 metres (34 feet). [3] Depending on application, fire department pumps lift water 6 to 10 metres (20 to 33 ft). Medium diameter hard suction hose, with attached strainer, for use with wildland firefighting apparatus.