DEFINITION:Set of moving device that fitted into a closed conduit driven directly by water flow. Its turbine rotor rotates about the axis which is perpendicular to water flow.WORKING PRINCIPLES:Water flow drives vane rotate. Rotating times which is proportional to water flow speed are gathered, hence total volume passed through water meter is recorded.CHARACTERS:For hot water.Outside adjust copper body,painted available as demanded.Counter:vacuum sealed, frost proven, keeping clear reading for long.Magnetic transmission free from disturbance.WORKING CONDITION:Water temperature≤45ºC(Hot water meter≤90ºC)Water pressure≤1MpaMAXIMUM PERMISSIBLE ERROR:From the minimum flow-rate (qmin) inclusive to the lower zone of the transitionalflow-rate (qt) exclusive: ±5% .From the transitional flow-rate (qt) inclusive to the higher zone of the maximum flow-rate (qmax) exclusive: ±2%(hot water meter±3%.)SizemmDn15Dn20Dn25Dn32Dn40RQ3/Q180Q4m3/h3,12557,87512,520Q3m3/h2,546,31016Q2l/h5080126200320Q1l/h31,255078,75125200Max. Readingm399999.9999999999.9999Min. ReadingLiter0.05Pressure LossΔP<63Max. PressureMAPMAP16Max. TemperatetT30 or T50
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