Flow Coefficient
The flow coefficient of a valve is one of the important parameters to measure the flow capacity of the valve. The size of the flow coefficient illustrates the size of the pressure loss when the fluid passes through the valve. The larger the flow coefficient value, the smaller the pressure loss when the fluid flows through the valve, and the better the flow capacity of the valve. Many valve users require valve manufacturers to provide valve flow coefficient values.
Traffic characteristics
Flow characteristics are an important technical indicator and parameter of valves, especially control valves. It is of great significance to make the correct selection during application.
The flow characteristic refers to the relationship between the percentage of the maximum flow flowing through the valve and the rated stroke percentage when the rated stroke percentage changes from 0 to 100%.
According to the pressure drop at the inlet and outlet of the valve, the valve flow characteristics can be divided into inherent flow characteristics and working flow characteristics. The inherent flow characteristics are the flow characteristics when the pressure drop at both ends of the valve is constant, also known as the ideal flow characteristics. The working flow characteristics are the flow characteristics of the valve under working conditions (pressure drop changes).

