Key structure is made up of rotary carried helical blades which goes around as the same direction of
water flow.

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
maximumflow-rate (qmax) exclusive: ±2%(hot water meter±3%.)