1.Selection of standardized pumps
1). The standard pump is the national standard in accordance with the request of ISO, the development and implementation of the latest types of pumps. The main features are small size, light weight, excellent performance, easy operation, long service life, low energy consumption and so on. It represents the latest trend of water pump career.
2). What brand pumps good as a user, because of the limitations of professional knowledge, it is difficult to determine, the best way is to consult the experts. If true unmanned consulting, no harm to consult some of the old pump users, especially those with their own use conditions near them, and trust to buy these users, reliable and comparative mature quality merchandise, can yet be regarded as a wise selection. At the same time, should be based on the local power supply situation to determine the use of single-phase or three-phase pump pump.
2. The choice of the pump is satisfied with the head
The pump called head is required to head, not to mention the water height, clear this point is particularly important for the selection of pumps. Pump head is about 1.15~1.20 times the height of water extraction. If a water source to the water at a straight height of 20 meters, the head is about 23~24 meters. Pump selection should be made pump nameplate on the optimum lift head with the required near. Under such a situation, pump efficiency is the highest, the use will more economical. But not necessarily the request is absolutely flat, usually as long as the deviation is not beyond 20%, the pump can work in a more energy-efficient situation.
3. Select the appropriate flow of the pump
Water pump flow, that is, the amount of water is usually not too large, otherwise, will add the cost of procurement of water pump. Should be a concrete analysis of concrete problems, such as user with its own draft of the self-priming pump, flow rate should be as far as possible the election of some small; such as submersible pumps for irrigation users, appropriate selection of some of the large flow. When the water pump needs to see the type and design values in line with the design, usually will buy a little theoretical value of the pump. In the fountain pump scale selection to specific issues specific analysis.
