Self-reliance type flow what are the main functions of the pneumatic control valve?

Self-reliance type flow working principle of the pneumatic control valve is relative to the electric pneumatic valve, it has the advantage of not need outer power, application practice proved that in a closed water circulation system. （ Such as hot water heating system, air conditioning refrigeration system) The proper use of the valve, the flow distribution can be easily implemented system; Can realize the dynamic equilibrium of system; Can greatly simplify the system debugging work; Fix the pump working condition, etc. Therefore, self-reliance type pneumatic control valve has a broad application prospects in heating air-conditioning engineering. Main functions: the role of self-reliance type pneumatic control valve flow is under the import and export of the variation of pressure difference of valve, to maintain constant flow through valve, thus maintaining and the series of controlled object ( Like a loop, a user, a device, etc. , hereinafter the same) Flow rate constant, self-reliance type the name of the flow control valve is more, such as self-reliance type flow balance valve, flow valve, self balancing valve and dynamic flow balance valve, such as various types of self-help type flow control valves, each has a different structure, the working principle is similar.