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• 英语翻译Consequently the penalty is approximately $3400/kW for theabove example.The pumping station designer can influence to some extent thetype of pump required by distributing the total delivery flow overthe appropriate number of pumps.The highest possible efficiencyis to be obtained by suitable choice of the number of pumps and ofthe speed of rotation.There is an illustration of the relative peakefficiency for several pump types in Figure 7.Polishing
• 英语翻译It should,however,be noted that the s \1 s design requires asignificantly higher development effort,i.e.,costs,than the 2d or3d as regards casing design,hydraulic layout of the diffusers,axialpressure equalization,mechanical design,and radial thrust.A final decision regarding the type of pump to be chosen can bemade by the pump manufacturer and the plant design engineerafter careful consideration of the advantages and disadvantagespreviously menti
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• 英语翻译When finished cleaning,release trigger valve,turn off motor (within 3 minutes),because after release trigger valve the will do bypass working,water flowed in the pump body,if too long,will be very hot,broken seal or other parts.If long-term stock,drain out all water in pump,separate inlet hose from water source,running motor about 1 minutes without water source,take inlet hose and high pressure hose drain all water in hose,when high pressure hose
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