How to choose hydraulic metering pump model? It is necessary to integrate various factors to consider, in addition to the main parameters of the natural environment of transportation and the operation required by customers, the same key also the characteristics of the medium's own components, such as the proportion of the medium, viscosity, particulate matter, whether the characteristics will be changed during the whole process of transportation, whether there will be temperature changes, especially some chemical properties. To establish its PH value before making model selection to take into account.

How to choose the type of hydraulic metering pump, it can be seen that it is necessary to integrate several levels to choose, the key is the following aspects:

1, flow: the flow immediately endangers the solution of high efficiency, should be the operation of the need to limit the flow as the norm, to this end, both normal flow, usually in the normal flow requirements of the basic 1.1 times to prevent excess weight;

2, consistent: one of the key technical parameters, usually greater than 10% capacity to make decisions;

3, temperature: different hydraulic metering pump specifications due to the difference in materials, the temperature tolerance is not the same, need to select the corresponding pump type according to the actual temperature transition situation, if there is a unique must be especially customized pump type;

4, the characteristics of the medium: the name of the transport medium, composition, viscosity, particulate matter or chemical fiber residue condition, part of the working condition needs to take into account the unexpected situation caused by the temperature change;

5, working conditions natural environment: the altitude of the workplace, natural ambient temperature and ambient humidity, operation requirements are void or continuous.

In addition, it should be noted that the hydraulic metering pump has a variety of pump types. If the demand for metering verification accuracy is high in the transportation working condition, it is proposed to consider the plunger pump metering pump. If the liquid pH of the transport is high, or has adverse effects, it is generally proposed to use diaphragm metering pumps with stronger actual sealing effect and more acid corrosion resistance; If the flow rate of the new processing project is not large, but the working pressure is higher, consider the small and medium-sized metering pump driven by electromagnetic; If the processing process not only needs to accurately add flow, but also specifies that the medium can not be leaked, then the hydraulic metering pump with more characteristics is used.