Application analysis of ALLWEILER screw pump
Some key points about the selection of screw pump were briefly introduced in the front, and the user should have a general concept about the selection of ALLWEILER single screw pump according to these information. Next, we will introduce some in-depth knowledge points. 3、 The pump structure has been mentioned previously. There are roughly two types of single screw pumps: direct connection type and bearing pedestal type. Both have their own advantages and disadvantages. When selecting the model, we should consider various factors such as working pressure, installation space, budget, power and so on, and then decide which model is suitable for us. For example, the pump flow is not large, dozens of cubic meters per hour, the pressure is not high, and the budget is sufficient within 12 bar. At this time, either of the two structures can be used. However, if there is a requirement for the installation space of the pump, and the unit needs to be as short as possible, then the direct connection type is undoubtedly a priority. However, if the flow of the pump is relatively large, such as 100-200 m3/h, the required power of the proportioning reduction motor is also large, at this time, the bearing pedestal structure should be given priority. For the direct connected pump, when replacing the mechanical seal and other maintenance work, the relatively heavy workload of disassembling and assembling the large size reduction motor from the unit is relatively large. For the pump with bearing pedestal structure, the reducer motor is B3 type and has an independent base, so it is much easier to maintain the pump. ALLWEILER screw pump bearing pedestal structure ALLWEILER direct connected screw pump saves a bearing pedestal and some costs of the pump body for the direct connected pump, but usually the shaft head and flange of the reduction motor are customized according to the size of the shaft head and the direct coupling frame of the pump
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