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["La pression d'aspiration positive du pompe",,"La pression d'aspiration positive de la pompe est de 3 m. Cela signifie-t-il que le débit d'aspiration de la pompe est de 3 m   ??",,"La pression nette d'aspiration positive Ne pompe est NPSHr. Si ce nombre est de 3 m, si un pression atmosphérique standard et de l'eau常温的话,那泵的吸程就等于3-N也就是6.5 m mais il faut tenir compte des pertes dans les tuyaux et de la marge,所以吸程不超过6.5 m。",,"Merci de l'information,我差点按照3米来选择了。这是正规科研机构提供的数据,与我们平常的说法有差别。"}

2018-06-27View Original

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泵的正吸入压头为3m。指的是泵的吸程为3m吗??
Reply #22018-06-27
泵净正吸入压头是NPSHr,如果这个数是3米,如果在一个标准大气压下,抽常温水的话,那泵的吸程就等于10米-3米也就是7米,但要考虑管路损失和余量,所以吸程不超过6.5米
Reply #32018-06-27
谢谢,我差点按照3米来选了。这是正规科研机构给的数据,跟我们平常的说法有差别

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