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The gear metering pump is a kind of equipment for conveying special liquids. With the development of science and technology and the progress of the times, it has been widely used by people. But now the metering pumps on the market have different prices, various types, and different shapes. If you want to buy a product that suits you, you need to choose the type, so how to choose the type? Let winny share it with you.

 

1. Determining the pressure: The rated pressure of the selected metering pump should be higher than the actual pressure required, generally 10%-20% higher is enough, not too high, otherwise it will cause energy waste, increase equipment investment and operation cost.

 

2. Determine the material of the pump head (fluid end): After the specific model and specification of the metering pump are determined, it is very important to select the material of the flow part according to the properties of the flow medium. If the selection is improper, the medium will be corroded and damaged. Leakage of components or media contaminates the system, etc. In severe cases, it may cause major accidents.

 

3. Determine the flow rate: the selected gear metering pump flow rate should be equal to or slightly greater than the flow rate required by the process. Considering the economy and practicality, it is recommended that the actual required flow rate of the metering pump be selected between 70% and 90% of the rated flow rate of the metering pump. .

 

4. Other aspects: When selecting a metering pump, it is also necessary to consider the accuracy level of the required metering pump. The higher the accuracy level, the greater the investment. The working temperature of the metering pump is generally between -30 and 100°C, and the working temperature range of the special metering pump is wider (such as a high-temperature liquid metering pump with an insulating jacket, whose delivery temperature can reach 500°C). For the particle size of the medium, it is required to be less than 0.1mm. For the medium larger than 0.1mm, the flow structure of the pump can be changed in a targeted manner to meet the needs. For the viscosity of the medium, it should generally be 0~1000mm/s, and the special gear metering pump can reach 6000mm²/s.

 

Shanghai CIXI can provide various types of metering dosing pumps. If you are not sure about the right type, please consult CIXIFM winny: sales01@cxflowmeter.com