Choice of Valve Caliber in Automatic Control System of Heating Ventilating and Air Conditioning System

The choice of regulating valve caliber in automatic control system of HVAC system is very important,it can influence regulatory characteristic of automatic control system directly,thereby it will influence energy saving and efficiency of equipment operate of the HVAC system.The article takes air-conditioning automatic control system of Nanjing Lukou Airport cargo centre as an example,then it introduces how to choose the valve caliber in automatic control system of HVAC system.