Dynamic balance characteristics of pneumatic valve

first of all, the working principle of the pneumatic valve of dynamic balance. To balance the pneumatic valve pneumatic valve core flow area to adjust, to adapt to the changes before and after pneumatic valve, flow control. Balance the pneumatic valve by the supporting device, high precision springs, flow pneumatic valve bravery, the differential pressure spring to control pneumatic valve size of bile flow, pneumatic valve and constant flow.
second, the working process of the pneumatic valve. If the smallest start differential pressure is greater than the balance of the pneumatic valve pressure difference before and after, says spring is compressed, the largest circulation area at this time. If balance before and after pneumatic valve differential pressure in the work within the scope of the spring by pneumatic valve biliary compression, is in working status, on both sides of the pneumatic valve bravery round hole, geometry type passage through the water. Because of pneumatic valve bravery in motion, the geometric type flow channel are also due to the change, pneumatic valve flow area is changed also. In the compression range, can be roughly constant water flow. If the balance of the pneumatic valve differential pressure is greater than the scope of work, before and after the spring the total compression pneumatic valve bravery, only on both sides of the pneumatic valve bravery round hole with water, namely the pneumatic valve bravery as a fixed regulator, pressure difference and flow rate were positively, differential pressure increases, the flow rate is increased.
pneumatic valve through a certain pressure range of dynamic balance, to control the maximum air terminal flow, which can realize automatic constant, the flow of air conditioning heating load is not stable, system debugging is simplified, reduce debugging time. Especially the balance of the application of pneumatic valve in different process water system, which can realize design environment temperature, working condition of hydraulic balance and other terminal equipment at the end of the air conditioning system of start-stop operation does not affect.