To maintain constant output pressure within a pressurized system, a device is used known as an electronic air regulator valve to fluctuate the incoming pressure to the regulator. Mechanical pressure regulators are generally adjustable by hand, limiting their usability in applications. While using a pneumatic pressure regulator electronic with a digital control system, the precise output pressure is controlled with slight adjustments. An electronic air pressure regulator makes a true closed-loop control device and offers a feedback voltage of the current output pressure. When this feedback reads the signal from digital pressure regulators, control systems can make real-time adjustments which are great for improving consistent pressure regulation in the applications.
How does an Electronic Air Regulator Valve Works?
Electronic air pressure valves provide the best improvement as compared to manual regulators since they are fast and very effective at allowing better control of liquid and gas. An electronic control pressure regulator uses a fill valve and a vent valve to maintain the outlet pressure at the desired set-point.
A small inner pressure sensor in the system monitors the output pressure and the digital controller accommodates the flow output of the internal valves to retain the required set-point (i.e. closed-loop control). It means that once you set the desired pressure, the digital pressure regulators will maintain this pressure with changing flow rates through the system.
The electronic air regulator valve gives immediate feedback to adjust the flow of either the fill or vent valve therefore the output pressure remains static.
When the control signal increases, the internal proportional air regulators activate, increasing pressure into an internal pilot chamber. When this occurs, more of the inlet pressure from the system passes through the proportional fill valve and into the pilot chamber. The pressure in the pilot chamber grows increasingly and causes the upper surface of the diaphragm to perform.
Due to this, the air supply valve is connected to the open diaphragm, and a portion of the supply pressure becomes output pressure. This output pressure goes back to the control circuit with the help of a pressure sensor. The fill valve will continue to adjust slightly until the output pressure is equal to the desired set-point of the control signal.
Benefits of Electronic Air Regulator Valve:
Following are the advantages of electronic air pressure regulators. These includes:
- More stable and precise control such as measurement of the complete vaporization of liquid in the evaporator is a result of the intelligent control system comprising probes, the controller, and its algorithms.
- Wide range of air pressure control to flow rate from 0 to 100 %
- Unlike thermostatic valves, electronic air regulator valve do not require periodic calibration.
- Fast response to changes in the surrounding conditions (on, off, …).
- A hermetic seal of pneumatic pressure regulator electronic is ensured by the use of high-performance gaskets and motors. On the other hand, thermostatic valves need to be used in combination with a solenoid valve in order to save refrigerants from migrating to the compressor.