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:Dry type.Counter:vacuum sealed, frost proven, keeping clear reading for long.Remoter transmission device.Outside adjust copper body, painted available as demanded.Anti-magnetic.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%.)
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