Product Description APPLICATION: This range of water meter is used to measure the total quantity of cold potable water which consumed in household or a resident unit,passing through the pipeline FEATURES: Adopt volumetric rotary piston principle of measurement with conformity to ISO 4064 class C,D High sensitivity enables the accurate measurement even at a low flow rate of 4 1/h No location limitation for installation.Accuracy is not to be affected wherever installed at a horizontal,vertical or inclined pipeline Register is sealed with a special liquid to keep a clear reading in long term service Mechanical parts use of high-quality material to ensure a stable characteristic WORKING CONDITION: Water temperature:+50篊 Water pressure:1MPa COMPLIANCE WITH STANDARD: ISO 4064 Class C,D INDICATING ERROR: At low zone is ?% from minimum flow rate(qmin) totransitional flow rate(qt) exclusive boundary At high zone is ?% from transitional flow rate(qt) to overload flow rate(qs)