DEFINITION:
Key structure is made up of rotary carried helical blades which goes around as the same direction of water flow.
CHARACTERS:
1.Fit for big water flow;
2.Stable and high accuracy;
3.Low pressure loss;
4.Long working life;
5.Fit for hard water;
6.Types: horizontal and removable;
7.All technical figures are conformed with GB/T778.1~3-1996 which is equivalent to ISO4064 Standard Class B.
WORKING CONDITION:
.Water temperature≤45℃(Hot water meter≤90℃)
.Water pressure≤1Mpa
MAXIMUM 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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dry type Removable woltman water meter
dry type Removable woltman water meter
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