Enumeration that defines the valve characteristic.
| Enumeration | Description | 
|---|---|
| EqualPercentage | Equal percentage - Equal percentage and linear for three-way valves | 
| Linear | Linear | 
| PressureIndependent | Pressure independent (mass flow rate only dependent of input signal) | 
| Table | Table-specified | 
type ValveCharacteristic = enumeration(EqualPercentage "Equal percentage - Equal percentage and linear for three-way valves", Linear "Linear", PressureIndependent "Pressure independent (mass flow rate only dependent of input signal)", Table "Table-specified");