Valve characteristics, such as flow coefficient, pressure drop, and valve authority, significantly impact the performance of a hydronic system. For example, a valve with a high flow coefficient can handle higher flow rates, while a valve with a low pressure drop can reduce energy losses. Improperly sized or selected valves can lead to poor system performance, including reduced heat transfer, increased energy consumption, and decreased system reliability. Moreover, valve characteristics can affect the stability and controllability of the system, making it essential to consider these factors during system design and operation.