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1. Definitions. Characteristic quantities
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Reference plane: plane from which the various heights are measured, whether geometric, manometric, practical, suction, load, discharge, etc., as well as the NPSH.
In the case of a horizontal axis pump (figure 1 a ), the reference plane is the horizontal plane passing through the axis of rotation. In the case of a pump with a vertical axis (figure 1 b ), the reference plane is the horizontal plane passing through the highest point of the active parts.
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Definitions. Characteristic quantities
Pump classification
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Norms and standards (non-exhaustive list)
- Reciprocating positive-displacement pumps – Technical specifications (classification index: E44-362) - NF EN ISO 16330 - 2003
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- Pumps for liquids and systems – General terms – Definitions, quantities, literal symbols and units. - ISO 17769 :...
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