How to buy centrifugal pump?

Centrifugal pump is one of the most common pump products, widely used in various fields of industry. Centrifugal pump is the use of impeller rotation, the water centrifugal force to work. But the market a wide range of centrifugal pumps, different standards. This article will be from a professional point of view, teach you how to choose the most suitable product. (1) to determine the delivery system flow and indenter liquid delivery is generally mandated by the production task, if the flow fluctuations in a certain range, select the centrifugal pump should be considered at the maximum flow rate. According to the delivery system piping arrangements, the Bernoulli equation () is used to calculate the pressure head required for the line at maximum flow. (2) Selecting the type and model of the pump First, determine the type of the pump based on the nature of the fluid being delivered and the operating conditions. Then select the appropriate model number from the pump catalog or catalog at the determined flow rate Qe and indenter He. Obviously, the flow rate and pressure head provided by the selected pump are not necessarily exactly the same as the flow rate Qe and pressure head He required by the pipeline, and taking into account the change of operating conditions and a certain margin, the flow rate of the selected pump and The indenter may be slightly larger, but the corresponding pump efficiency should be relatively high under this condition, ie the coordinate position of the point (Qe, He) should lie below the HQ curve corresponding to the high efficiency range of the pump. After the model is selected, various performance parameters of the pump should be listed. (3) Calculate the shaft power of the pump If the density of the transported liquid is greater than the density of water, press () to calculate the shaft power of the pump. Of course, there are many products to meet the above technical requirements, we should also take into account the purchase, the price of centrifugal pumps, the reliability of the use of the supplier's geographical location, strength, service reputation and so on. Choose Asia Fluid Machinery Network, its professional and innovative B2B model, you can stop to provide you with advice and services.

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