... used semiclosed-type impeller because of the small flow rate ;3.Good quality mechanical seal,No leakage;4 ... : environment protect,electroplate,bleach and dye,sewerage treatment,water treatment, food,drink,medicine,maquillage,papermaking,make (wine ... industry,industry of fine chemicals,etc. Model Description:Material: MaterialZG0Cr18Ni9ZGCr18Ni12Mo2Code304316 Performance Range:Flow Range: 0.9~192m3/h ...