Digital Pneumatic Regulator provides multiple advantages as compared to the mechanical regulator. Generally, a mechanical pressure regulator maintains the pressure and stabilizes the flow rate but it does not indicate how the downstream conditions change. However, an electronically controlled pressure regulator comes with numerous advantages. These pressure regulators supply better accuracy, variable control rates through a control signal, and also provide a feedback signal to make closed-loop pressure control. But there are some disadvantages of air pressure control valves that include blockages, damage to internal components, incorrect Pressure Setting, and more. In this post, you will learn the advantages and disadvantages of pressure controller regulators.
Advantages of an electronic pressure regulator:
Digital Pneumatic Regulator provides definite technical advantages that secure its continued use in certain applications in the industries. The advantages are:
Safety:
In fact, pneumatic pressure regulators are quite safe and do not have a significant risk of electrical shock because no electricity is moving through anything but the regulator itself. This also helps to make pneumatic equipment safe and efficient for everyone to use.
Controllability:
When it comes to controllability, an electronic pressure regulator is one of the best choices to control the pressure of fluids or gasses throughout the systems. An electronic air pressure regulator brings a lot more flexibility in the situation when you might want to control it and how often you want to control it. On the other hand, mechanical regulators have a screw system where you need to set it again and again to control the pressure.
Accuracy:
Now, let’s talk about the accuracy of an electro pneumatic pressure regulator as they have an internal pressure sensor that forwards the information back to its internal processor at once. It tells electronic pressure controllers what dynamic orifice is needed to preserve pressure. Hence, an electro pneumatic regulator can be more accurate and responsive.
Disadvantages of an electronic air pressure regulator:
The disadvantage of the digital pneumatic regulator is very painfully to anyone familiar with pneumatic systems. Sensitivity to vibration, changes in temperature, mounting position, and affect calibration accuracy to a far greater degree for pneumatic systems are included in the disadvantages of the pressure regulators. Following are some disadvantages of electro pneumatic pressure regulator.
Expensive utility:
Compressed air regulators have utilized more expensive per equivalent watt-hour than electricity which makes the operational cost of pneumatic systems far greater than electronic. Well, the installation cost of pneumatic instruments can be quite since you need special (stainless steel, copper, or tough plastic) tubes to carry supply air and electric signals to distant places.
Damage to internal components:
Digital Pneumatic Regulator contains a heat-resistant diaphragm that is connected to a spring. When spring pushes on the diaphragm with sufficient force, the pressure causes the regulator to close more tightly. Alternately, low pressure pushes the diaphragm to remain open, thus keeping the regulator open more widely. With the passage, the moving parts of this electronically controlled pressure regulator experience a significant amount of force. Eventually, those components may destroy by degradation and make them less responsive than they should be.
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