Precision Control with Marginal Hydraulic Proportional Valve

1. Areas, benefits, and how to make the right choice

2. A proportional valve adjusts output pressure or flow in direct proportion to the input, hence its name. For example, if the input doubles, the output will also double, providing precise control over system performance. Their use: Key features of a proportional valve For the concise control it offers, a proportional valve is used in applications where output pressure varies significantly. The variation may happen in steps or it can be continuous. If it happens in steps, then it means that the pressure remains at a particular value for some time before increasing to the next level. In continuous output pressure, the pressure increases continually at a set rate. If required, proportional valves can be interconnected in a system where the output from one valve can be used as an input to another. From the options available these days, many modern proportional valves are programmable. They also feature onboard diagnostics, securing their suitability for Industry 4.0 requirements for smart manufacturing. For their features and usability, they are highly dependable, cost- effective (particularly in air-pilot operated models), while ensuring fast response time and consistent control.

3. Benefits to expect from proportional valves These valves are used in places where pressure variations are high. In these systems, these valves are used to reduce cycle time. It achieves so by allowing a good control over pressure, ensuring stability. Due to their fast, precise response, it further improves efficiency. Furthermore, they are great for ensuring continuous control and pressure output, which also means desired result with every use. How to select the most appropriate proportional valve? There are some considerations to make to ensure the right selection of proportional valves for a particular industry or purpose. When choosing a proportional valve, it’s important to evaluate several factors: · Controlled parameter: Are you controlling pressure, flow, or another characteristic? · Input and output requirements: What pressure range and flow rates are needed? · Operating environment: Consider temperature, humidity, and whether the application involves exposure to wet or dirty conditions. · Process type: Is the process static, step-by-step, or dynamic? This will affect the required response time and hysteresis performance.

4. · Cost: Air-pilot operated valves are often more economical without sacrificing performance. Application areas of proportional valves: There are several, actually. They are suited to a range of applications — from analytical and test instrumentation to process applications like tensioning, blow molding, and spraying. They also have applications in medical and foundry. Apart from that, they are used in a variety of other industries as well.