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'Minimum flow circulation' with Centrifugal pumps

机译：离心泵实现“最小流量循环”

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Industries requirement of an energy efficient, lower maintenance, trouble free performance, higher reliability and lower NPSH centrifugal pump kept continuous pressure on competitive manufactures in last century. The manufactures had taken it as a challenge and came out with the pumps satisfying all the stipulated needs of industries, but unfortunately, due to lack of understanding about the "Minimum flow" requirement for centrifugal pump led to few failures and put the question mark on the high reliability and trouble free operations. As a matter of fact, each centrifugal pump does require" minimum safe flow" to enhance higher reliability, low vibration, noise less operation and trouble free performance. Now, pump manufactures do recommend "minimum safe flow" with each pump model to provide longer trouble free, lower maintenance and high performance pump operation. Undoubtedly, it is a proven fact that minimum flow loop protects the pump against failure, therefore, if is religiously provided with most of bigger capacity and high speed & head centrifugal pumps in industry with fewer exceptions.
机译：上个世纪，工业界对节能，低维护，无故障性能，更高的可靠性和更低的NPSH离心泵的要求一直对竞争产品造成持续压力。制造商将其视为挑战，并推出了满足行业所有规定需求的泵，但不幸的是，由于对离心泵的“最小流量”要求缺乏了解，导致了很少的故障，并在问号上加上了问号。高可靠性和无故障运行。实际上，每个离心泵确实需要“最小安全流量”，以提高可靠性，低振动，无噪音运行和无故障性能。现在，泵制造商建议对每种泵型号都建议“最小安全流量”，以提供更长的无故障时间，更少的维护和高性能的泵操作。毫无疑问，事实证明，最小流量环路可以保护泵免受故障的影响，因此，如果认真地为工业提供大多数容量更大的高速和扬程离心泵，则例外情况会更少。

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