一、北京益旋翼式立式冷热水表结构与用途 Structure and Use

（1）本水表是用于计量流经管道自来水或中水的体积总体量的流量测量仪表，适用于单向水流的自来水、井水、纯净水、中水等计量，该水表具有流通能力大，压力损益小，读数清晰直观，使用寿命长等特点。
（2）水压不大于1MPa      

（3）冷水水温不超过40℃且不低于0℃      

（4）热水水温不超过90℃

（1）This meter use to measure the mass of volume of tap water through pipe, suit to measure flux tap water, well water, pure water, and intermediate water in single direction. This meter has huge circulation, small pressure lost, clear number show and long work life feature.
（2）The water pressure should under 1MPa      

（3） The cold water should under 40℃ and no less than 0℃      

（4） The heat water meter should under 90℃

二、15-40主要技术指标 Main parameter