Metering pumps can be used in many strict requirements, and there are many types of metering pumps. Moreover, advances in technology, industrial development, and automation equipment have been paid attention to. The matching of metering pumps and the advantages of adapting to medium are very important. The following three aspects of the selection of metering pumps are described below.
First, determine the actual maximum pressure: the pressure of the metering pump is slightly higher than the rated pressure, typically higher than 10 to 20%. Don't choose too high, too much pressure will waste energy, increase equipment investment and operating costs.
The flow rate is then determined: the flow rate of the metering pump selected should be equal to or slightly greater than the flow rate required by the process. The metering pump flow rate is 30 to 100% of the metering pump's rated flow rate and the metering pump is high at this time with repeatability. Considering the economical and practical, it is recommended that the actual demand of the metering pump is 70 to 90% of the rated flow of the metering pump.
Determining the material of the pump head: The specific requirements of the metering pump are determined. According to the flow selection process of the material, this step is very important. If it is not properly selected, it will lead to the leakage of the corrugated medium over-flow parts or medium, and the damage of the system, serious accidents. It can also be caused in severe cases.
Other aspects, such as accuracy, viscosity of the medium, price of the equipment, after-sales service, etc., are all factors to consider.
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