The first select the appropriate pump speed should be based on the viscosity of the oil, to ensure the pump NPSHr can satisfy the user's actual suction conditions.
首先应根据油品的粘度选择适当的泵转速，以保证泵npshr能满足用户的实际吸入条件。
In order to get a good performance on preventing cavitation, the impeller of magnetic driving pump is designed in low-NPSHR method and variable-pitch inducer is installed.
为了获得良好的抗汽蚀性能，对磁力泵叶轮采取低汽蚀余量设计措施，同时配置变螺距诱导轮。
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