Why do we need the electronic flow control valve?

How to Work With Electronically Controlled Pressure Regulator

In the past few decades, the fastest-growing type of electronically controlled pressure regulator is said to be the servo valve design. This air regulator uses two high-speed servo and solenoid valves, which helps in increasing or decreasing the gas pressure as per the requirement to maintain the pressure. The benefit of using the pressure regulators is that they provide us with the facility of high pressure and the flexibility & robustness compared to the previous inventions of this technology. Usually, these pressure-controlling devices are marked as electro-pneumatic transducers. 

Different Names of Electronic Pressure Controllers:

Below are some of its other names, which are often used.

  1. Electronic pressure controllers
  2. Electronic pressure valves
  3. Electronic pressure transducers
  4. Electro-pneumatic transducers

In this article, the term electronically controlled pressure regulator will be used several times, as referred to as maintaining the pressure of gas or liquids by using the solenoid or servo valves. Equilibar provides the proportional air valves in various ranges, and they are:

  • Up to 500psi
  • Below 150psi
  • Up to 1000psi 
  • Highest 3000psi max

How Electronic Pressure Regulators Work:

The servo electronic pressure controllers work by utilizing a vent valve & push valve for maintaining the outlet pressure on the desired set-point. The air controller uses a sensor, which monitors the output pressure. At the same time, the analog & digital controller adjusts the servo valves’ timing to maintain the set point. 

The electronic pressure control valve needs a DC power supply along with the set-point signal. The analog operated valve accepts either 4 to 20 mA or voltage from 0 to 10 or 0 to 5 VDC input. A few of the electronically controlled pressure regulator models with the digital circuit accept the serial communications, such as RS – 232 or DeviceNet, in addition to the common analog standards. A few models also provide feedback signals, which inform the pressure sensor value. 

There are certain parameters for the successful application of the electronically controlled pressure regulator. The orifices used in the electronic air regulator come in multiple sizes depending on the required flow rate. You need to remember that the volume of the gas space can impact the tuning of the values.

Comparison of Different Models of Electronically Controlled Air Pressure Regulator:

In some digital pressure regulator models, the gas volume will be less than approximately 1 liter. And that can be the reason for issues like buzzing or frequent & unnecessary valve action. A few of the models also use the small bleed valve for low or no-flow applications. The solenoid valves or electronic pressure controllers are rated for the lifetime performance, which has the range of completing the 25 to 150 million cycles. These electronically controlled pressure regulators allow the outgoing air pressure to be greater than the previously transducers. 

Final Words:

In this guidepost, the topic of the discussion is to discuss the working electronically controlled pressure regulator. We also mention the different names of this technology that are commonly used for it. Hopefully, this post will be a great piece of information for you. 

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