CV value is Circulation Volume
Flow volume shorthand, flow coefficient abbreviation, originated in the western fluid engineering control field for the valve flow coefficient definition.
The flow coefficient represents the ability of the element to flow medium, specifically in the case of a foot valve, the volume (or mass) flow of medium in the pipe through the valve per unit time while the pipe maintains constant pressure.
In China, KV value is usually used to represent the flow coefficient, which is also the volume flow (or mass flow) of the pipeline medium flowing through the valve when the pipeline maintains constant pressure in unit time. Because the pressure unit is different from the volume unit, the relationship between the two is as follows: Cv= 1.167kV
Post time: Oct-30-2021