Rotary vane wheel water meter Specification Measuring the volume of cold potable water passing through the pipeline 1> Spec: 15mm-50mm 2> Material: Brass, Iron, plastic 3> Type: multi jet dry-dial water meter 4> Steady and reliable characteristic. 5>ISO 9001:2000 and ISO 4064 Class B Working condition a) Water temperature≤40 for cold potable water meter, b) Water temperature≤90 for hot potable water meter c) Water pressure: ≤1MPa Maximum permissible error a) at low zone is ±5% from Qmin to Qt( not contain boundaty) b) at high zone is ±2% from transitional flow(Qt) to maximum flow(Qmax)