How does the pressure holding valve work?

The main function of the pressure holding valve is to maintain the pressure in the system within the set safety range and ensure that the fluid always flows at a stable pressure. Its working principle is as follows:
Set pressure:
The pressure holding valve usually has a set working pressure value (usually the inlet pressure). This set value is the working standard of the valve, and the function of the valve is to ensure that the system pressure is not lower than this set value.
Pressure monitoring:
The system is equipped with a pressure sensor to continuously monitor the pressure in the pipeline. When the pressure in the pipeline is lower than the set value, the sensor transmits a signal to the valve to trigger the valve action.
Flow regulation:
When the pressure is lower than the set value: the valve will automatically open, increase the flow, and supplement the insufficient pressure in the system, thereby ensuring that the pressure is maintained above the set value.
When the pressure exceeds the set value: the valve will automatically adjust the flow to discharge the excess fluid to avoid damage to the system due to excessive pressure.
Automatic control:
The pressure holding valve is usually used in conjunction with a solenoid valve or an automatic control system, which can automatically adjust the valve opening according to real-time pressure changes to maintain stable pressure. The system does not require manual intervention, and the valve will automatically open or close according to the pressure signal to maintain a stable working pressure in the system.