安徽省蚌埠市自来水公司,已是40多年历史的老企业,到目前现有供水管网309km,其中DN300mm 以上管道有125km。最大口径为DN1200mm,供水面积35km~2。供水管材中,有普压铸铁管,中压稀土管,球墨铸铁管,自应力水泥压力管,预应力水泥压力管、钢管,UPVC 管等。经40多年的经验和所发生管道事故的教训,我们认为钢管、球墨铸铁管较好。自应力水泥压力管带来的祸害最多最大,特别是89年前后, Anhui Bengbu Waterworks Company is an old enterprise with a history of more than 40 years. Up to now, its existing water supply network is 309km, of which 125km is above DN300mm. The largest diameter DN1200mm, water supply area 35km ~ 2. Water supply pipe, a cast iron pipe, medium pressure rare earth pipe, ductile iron pipe, self-stress cement pressure pipe, prestressed cement pressure pipe, steel pipe, UPVC pipe. After more than 40 years of experience and lessons learned from pipeline accidents, we think steel pipe and ductile iron pipe are better. Self-stress cement pressure pipe up to the greatest harm, especially after 89 years,