The application of pneumatic control valve is very wide, but it will also have some problems and precautions for use. It should be used strictly in accordance with the operating procedures, otherwise it will increase the possibility of failure. The following is about the need to pay attention to the use of pneumatic control valves. problem.
When selecting the valve, the caliber cannot be too small. If the selected valve diameter is too small, on the one hand, it will increase the resistance of the system, and even when the valve diameter is fully opened, the system still cannot meet the set capacity requirement, which will lead to serious consequences; on the other hand, the valve will need to pass through the system Provide a large pressure difference to maintain sufficient flow, increase the load of the pump, and the valve is vulnerable to damage, which has a great impact on the life of the valve.
The pneumatic control valve in the control system should work under constant pressure drop as much as possible, because whether the valve matches the coil depends on its inherent characteristics and flow factor, and these valve parameters depend on the constant valve pressure drop. It is unreasonable to select the regulating valve directly according to the pipe diameter of the connecting pipe.
