Working Principle
Pressure Monitoring and Feedback:
The pressure holding valve is equipped with a pressure sensor or a structure that directly acts on the valve core using fluid pressure, which can monitor the pressure value at the inlet in real time.
When the monitored pressure is lower than the preset set value, the pressure holding valve triggers the flow regulation mechanism.
Flow Regulation Mechanism:
The pressure holding valve adjusts the fluid flow through the valve by changing the position or opening of the valve core.
When the pressure is too low, the pressure holding valve will automatically increase the opening of the valve core to allow more fluid to enter to increase the flow and pressure in the system.
Conversely, when the pressure is too high, the pressure holding valve will reduce the opening of the valve core to limit the inflow of fluid, thereby reducing the system pressure.
Maintaining Stable Pressure:
By continuously monitoring and adjusting the flow, the pressure holding valve can ensure that the pressure in the system is always maintained near the preset set value.
This regulation is dynamic and can be automatically adjusted as the system operating conditions change.
Specific Applications
In actual applications, pressure holding valves are usually used in conjunction with components such as solenoid heads and controllers to achieve more accurate and reliable pressure control. For example:
When the system needs to maintain a certain inlet pressure, the set value of the pressure-maintaining valve can be set to ensure its normal operation.
When the system pressure decreases due to external factors (such as flow changes, load fluctuations, etc.), the pressure-maintaining valve will automatically adjust the flow to compensate for the pressure loss.
At the same time, by cooperating with the solenoid head and controller, the pressure-maintaining valve can also realize remote monitoring and automatic control functions, further improving the stability and reliability of the system.