Tips for selecting a gear metering pump
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 CIXIFM winny take everyone to analyze it together!
1. Determining the pressure: The rated pressure of the selected metering pump should be higher than the required actual pressure, generally about 10%-20% higher, and it should not be too high,
otherwise it will cause energy waste and increase equipment investment and operating costs.
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 choice is not appropriate, the medium will corrode and damage the flow parts or the medium will leak and
pollute the system. 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 economical 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 multiple types of metering
dosing pump. If you are not sure about the specific model, you can consult CIXIFM winny:
sales01@cxflowmeter.com
