Cast steel self regulating valveBy sensing changes in medium parameters through sensitive components inside the valve (such as springs, diaphragms, bellows, etc.) and converting them into mechanical displacement, the valve core is driven to adjust the opening and achieve feedback control. For example:

Pressure regulation: When the pressure of the medium increases, the diaphragm or piston is pressed to push the valve core towards the closing direction, reducing the flow area and lowering the pressure; When the pressure decreases, the spring pushes the valve core back to open, restoring the pressure.

Temperature regulation: By sensing temperature changes through a temperature sensor, the temperature signal is converted into a pressure signal to drive the valve core, and the medium flow rate is adjusted to control the temperature.

Flow regulation: Using the principle of throttling, the flow rate of the medium is adjusted by changing the position of the valve core to maintain stable flow.

　　Cast steel self regulating valveAccording to its functions, it can be divided into four categories:

Self operated pressure regulating valve: stabilizes medium pressure and is suitable for gas and liquid pressure control (such as natural gas pipelines and steam systems).

Self operated temperature regulating valve: sensing temperature through a temperature sensor, adjusting valve opening to control temperature (such as heating systems, hot water supply).

Self operated flow control valve: maintains a constant medium flow rate, suitable for scenarios that require precise flow control (such as chemical reaction vessels, cooling water circulation).

Self operated differential pressure regulating valve: maintains stable pressure difference before and after the valve, suitable for systems that require constant pressure difference (such as air conditioning water systems, heating pipelines).