The purpose of the pump, in general, is to lift a "required amount" of liquid to a "required height" or to a place where "required pressure" is required. This "required quantity", which corresponds to the flow rate of the pump, is usually expressed in units of 3/ min per meter; On the other hand, "required height" or "required certain pressure" is equivalent to real head. The real head plus the various lost oil heads in the pipeline conveying the liquid is the total head, which is usually expressed in its liquid column height (meters).
The so-called pump performance specifications refer to the size and capability of the pump used to achieve these purposes. Its content mainly includes the following items;
1) Type and type;
2) the diameter,
3) traffic,
4) More total head
5) speed,
6) Output power of prime mover used for driving.
The general content of these performance specifications of the pump is described in detail in the reference books of various pumps, and the practical points considered from the gear pump are described here. In the planning and design of chemical plant, when selecting the pump to be used, the parameters required by the pump are generally flow and total head. According to the flow and total head, considering the various conditions given to meet the purpose of the use of the pump, to choose the most appropriate type and type of pump, speed, drive the output power of the prime mover. For the user in the planning and design of the device, according to the pump manufacturer's product catalog and other reference materials to choose the pump suitable for the purpose of use.
