... and hydraulic reclaimation of Yangtze River basin, the Yellow River basin, the Pearl River Delta, the Huaihe River Basin and other rivers, ... to last till it is nearly worn through. And furthermore, even the volute liner breaks, no water leakage will occur.WNQ sump ... , about 2 – 3 percentage higher than the imported pumps. For the same production, the power consumption is lower.200WN-500WN are equipped ...