The application of health pump is closely related to human health. The primary goal is to ensure that the production process is free from bacteria and microbes, and no toxic substances are produced. The media that do not react will react, and ensure that it is perfect, clean and no residue. Secondly, it is in conformity with the relevant standards. No damage should be caused by pump medium, and the choice of sanitary pump should be carefully chosen for the material which is very sensitive to shearing. The choice of a specific pump depends on many factors, including pump discharge, conveying pressure and suction port state. The viscosity of fluid under the actual shear rate and temperature condition needs to be considered.
The viscosity value that must be considered in the design of the pump and system:
(1) the viscosity of the storage tank (low shear rate)
The viscosity of the (middle shear rate) in the pipeline
(3) the viscosity of the pump (high shear rate)
Shear sensitivity fluid due to deterioration in the work, so the volume type pump is usually used with low shear stress (such as hose pump), pumping speed should be appropriate to choose.
The selected products do not damage the solids of the product species (compared to the particles).
If the product has abrasive wear characteristics, or containing suspended solid solid particles, a lower rotational speed (particle settlement can not occur).
Temperature affects the performance of inhalation, considering NPSHr.
For medium with higher temperature, different thermal expansion rates between components must be taken into account.
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