What does kvs mean for a valve?

Kvs, or the flow coefficient, is a measure used to describe the flow capacity of a valve. It indicates the volume of water (in cubic meters) that can flow through the valve at a specific pressure drop (typically 1 bar) and is crucial for sizing and selecting valves in fluid systems. A higher Kvs value means the valve can handle a greater flow rate, making it essential for ensuring efficient system performance.