Over the past decade, the fastest-growing type of electric pressure regulator has been the design of a servo valve, which uses servo high speed or solenoid valves to increase or decrease gas pressure as needed to maintain pressure. These electronic water pressure regulators offer higher pressure and more flexibility and durability than previous technologies, which are often marketed as electro-pneumatic transducers.
Other Different Names of Electronic Pressure Controlling Regulator:
These devices are called by many names, including:
Electronic pressure controls
Electronic pressure valve
Electronic pressure transducers
Electro-pneumatic transducers
The term electric pressure regulator will be used to refer to pressure regulators using servo or solenoid valves. Equilibrate offers Electronic pressure controls in a variety of styles: less than 150psi, up to 500psi, up to 1000psi, and up to 3000psi max.
How Electronic Pressure Regulators Work:
Servo electronic pressure control (EPRs) controls operate using a push valve and an exhaust valve to maintain pressure exit at the set point. A small internal pressure sensor monitors the output pressure and the digital or analog controller adjusts the timing of the electric pressure valve to maintain a fixed position.
These EPRs usually require DC power and a fixed point signal. Analog controllers usually accept input current (4-20 mA) or voltage (frequency 0-10 or 0-5 VDC). Models with digital circuits can accept serial communication (such as RS-232 or Device Net) in addition to standard analog standards. Many models also provide a response signal that informs the amount of pressure sensor.
For greater output pressure these servo EPRs allow than previous pressure transducers. Many manufacturers have great output pressure from 600 to 1000 PSIG / 41 to 68.9 bar (g).
2-Loop Electronic Pressure Control Valve:
The most common option for EPRs is 2-Loop control, which uses an external response signal. This method is useful when the pressure must be stored in a removed area in the EPR area, or where the customer has a higher quality press machine than the one provided in the EPR.
Characteristics of Pressure Controls:
In addition to reducing input pressure, there are other functions that a pressure controller can easily perform:
Backpressure management and pressure relief valves
A pressure release valve is usually used to limit system pressure to a certain level by diverting part or all of the liquid or gas from the pump to the tank, where the designed/fixed pressure is reached.
Electric pressure regulator devices usually continue to refer to the internal pressure sensor to control automatic pressure regulator time, but favor the signal from the internal pressure signal as necessary to match the external response signal with that of the command signal (setting point).
In the right-hand program, the external pressure transmitter is directly connected to the process and provides feedback to the controller.
Interestingly, it is possible to use these devices to control events without pressure. For example, it is possible to control the line of movement of the air cylinder by sending a signal response to the EPR. The controller will adjust the output pressure as needed to match the shift response signal and the setpoint signal.
There are a few key elements to the successful use of an electric pressure regulator. These valves the orifices income in numerous different sizes and should be familiar according to the flow rate. The volume of the gas space can affect the adjustment of the valves. We also have described technology on night innovations website.
In some models, a gas volume of less than 1 liter can cause problems such as “crying” or the occurrence of normal and unnecessary valves. Some models include a small bleeding valve (emitting a small amount of gas into the atmosphere) with very low or no applications.
