Pump selection criteria based on: pump selection based on process should be based on water supply and drainage requirements, to be considered from five aspects, namely liquid delivery volume, the device head, the nature of the liquid, the pipeline layout and operating conditions, etc. 1, Flow rate is one of the important performance data of the pump, it is directly related to the entire plant's production capacity and delivery capacity. Such as the design process can be calculated in the pump normal, minimum, maximum three kinds of flow. Select the pump, based on the maximum flow, taking into account the normal flow, in the absence of maximum flow, usually desirable 1.1 times the normal flow as the maximum flow. 2, the lift system required for installation of the pump is another important performance data, generally to enlarge the 5% -10% head lift to choose. 3, the liquid properties, including the name of the liquid medium, physical properties, chemical properties and other properties, the medium in the solid particle diameter and gas content, etc., which involves the system lift, effective cavitation margin calculation and the appropriate pump type: Chemistry Nature, mainly refers to the liquid medium of chemical corrosion and toxicity, is the choice of pump material and choose which type of shaft seal an important basis. 4, the installation of piping system conditions refers to the liquid from the height of the liquid into the liquid distance, the minimum level of inhalation test, discharge the highest level of liquid and some other data and pipe specifications and their length, material, fittings specifications, quantity , In order to carry out the Department of comb head calculation and cavitation allowance check. 5, the operating conditions are many, such as the operation of the liquid T saturated steam P, suction side pressure PS (absolute), the discharge side of the tank pressure PZ, altitude, ambient temperature operation is gap or continuous, the pump position is fixed Or removable. Do you want to know more about pump pumping? Shengzhou Weidelong Pump Co., Ltd.!
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