What is Flow Coefficient Cv and How Do We Apply it to Hydronics?

Flow coefficient (Cv) is a relative measure of a device's efficiency at allowing fluid to flow. Bob "Hot Rod" Rohr, Caleffi Education Manager, explains how Cv is used in a hydronic or plumbing system including how pump sizing and component Cv are related, what is considered acceptable pressure drop through a device, what is meant by fixed orifice and variable orifice balancing valves, what is the "rated" Cv of a device, and the role of a fluid's specific gravity on Cv and pump sizing.

Видео What is Flow Coefficient Cv and How Do We Apply it to Hydronics? канала Caleffi Hydronic Solutions