Lister said electrical and hydraulic options are the biggest competition to electro-pneumatic control. While there are some applications in which those technologies do fit better, there are a wide variety of others for which electro-pneumatic is the right solution.
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He said in the past, electrical control was typically better for providing the precision required of positioning applications. But with Proportion-Air's two-loop QB2X pressure regulator, it is possible to get as good as, if not better, control over electrical.
With the QB2X, you can integrate a position sensor with an air cylinder and plug the sensor directly into the QB2X to allow for position control without having to utilize another PLC.
'Using the second loop technology, you can control speed, torque, or whatever you'd like,' said Lister. 'If there's a sensor out there for it, we can hook it up to the QB2X.'
Hydraulic control is typically for those applications with high force requirements, typically in the tens of thousands of psi. However, Lister said Proportion-Air does have electro-pneumatic components, including the QBX pressure regulator, which are capable of achieving higher pressures. The company's GX unit directly drives up to 1,000 psi.
For higher pressures, ratio regulators are available for the QBX which increase the amount of pressure that can be controlled. 'We've controlled up to 7,500 psi,' he said. 'We know from the process and part availabilities we can go up a little over 20,000 psi but no one has really had the application for that yet.'
Applications with space or size constraints may also factor into the ability to use electro-pneumatic control. 'If you don't have compressed air or ways to fit hoses in, then you can use electrical for [applications] that need some precision,' said Lister. 'Sometimes it is not worth putting a whole compressor in if there is just one little part that you need the precision on.'
READ MORE: Advanced Electropneumatic Positioning Achieves Dynamic Force Control
Determining the applications for which electro-pneumatic pressure regulators like Proportion-Air's QBX are best suited is difficult because they control process variables. 'That's such a wide variety of things,' said Lister. 'It's like asking what's the best benefit for a screw? It really depends on what you're using it for; the benefits really vary wildly.'
He said the pressure regulators are commonly used in automation related applications, and have proved particularly beneficial for manufacturing semiconductors, medical devices, and automotive components.
One example he provided was controlling steam temperature for tire curing. Ensuring the correct temperature is reached and maintained throughout the curing process is critical to creating a safe and high-quality tire.
Brian Craig
August 22,
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Pneumatic pressure controllers play a role, in industrial settings especially in hazardous conditions. These devices use compressed air to manage and oversee pressure, temperature and flow rates. Safety is of importance when it comes to these controllers considering the dangers in hazardous environments.
Pneumatic systems work on the concept of utilizing air energy. By regulating the airflow and pressure of this air different processes can be controlled effectively. There are types of pressure controllers tailored for specific purposes:
In environments systems offer an advantage in terms of safety. Unlike systems that have the potential to create sparks, pneumatic systems function without any risk of ignition. This aspect makes them particularly suitable, for locations where flammable gases or vapors could exist.
Pneumatic pressure controllers are widely used in industries such as oil and gas, chemical processing, and manufacturing, where they play a crucial role in maintaining safe and stable operations. They are particularly valuable in environments that require precise control of pressure and temperature to prevent accidents and ensure the efficient functioning of equipment.
Pressure controllers are deemed safer than their counterparts due, to their non sparking nature. However adding more safety features can improve their performance, in environments:
Pneumatic pressure controllers are widely used in industries such as oil and gas, chemical processing, and manufacturing, where they play a crucial role in maintaining safe and stable operations. They are particularly valuable in environments that require precise control of pressure and temperature to prevent accidents and ensure the efficient functioning of equipment.
Regular maintenance is vital for ensuring the pneumatic controllers operate safely and reliably. This includes:
Troubleshooting pneumatic pressure controllers involves identifying and addressing issues such as:
Pneumatic pressure controllers offer a safe and reliable solution for various industrial processes, especially in hazardous environments. Because of their built-in safety features and adherence to industry norms, they are the best option for situations where electrical sparks could be extremely dangerous. Operators are able to guarantee the durability and efficiency of these controllers by adhering to the recommended maintenance and troubleshooting protocols.
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