What Are the Advantages of Common installation mistakes with proportional valves？

The advantages of a proportional valve

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A proportional valve features a vast array of advantages that are functional on an operational level. Here you can find a list of the most common benefits. 

Precise regulation 

Proportional valves are designed to monitor the systems’ flow and pressure rate. They can easily adapt to many different contexts as they can be fine-tuned at any time in order to align with specific needs. Unlike solenoid valves, proportional valves can be adjusted as they allow more control over the system’s regulation processes. 

Energy optimization

One of the main advantages of a proportional valve is a significant increase in energy efficiency. As a matter of fact, these systems need less manual operations to adjust flow and pressure rates, resulting not just in an economic benefit, but also in a sustainable optimization of energy consumption.

Versatility

Proportional valves can adapt to many different contexts and applications - from industrial automation to Food&Beverage and delicate medical systems. They can also manage a variety of fluids and pressure rates, ensuring excellent performances in every field they may be applied to. 

Enhanced safety

Accuracy and constant monitoring mean improved safety. In fact, these systems prevent sudden fluctuations that can lead to operational shifts and malfunctions. 

IT Integration 

Nowadays, proportional valves are more dynamic and smart. The integration of IT electronics enables operators to monitor performance in real-time, easy access to reports, and feedback mechanisms, enhancing their functionality and reliability. 

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The challenges a proportional valve needs to deal with 

While the proportional valve advantages are significant, it is important to be well aware of certain challenges that may arise. 

• A complex design could result in difficult installation and maintenance. For this reason, proportional valves should be handled by skilled experts or may require specific training and equipment. 

• When it comes to proportional valves, economic considerations are instrumental to understanding if the initial investment is worth it. In fact, these systems can cost more than solenoid valves, although they can improve energy consumption and reduce maintenance operations. 

• Proportional valves can be extremely sensitive to external factors such as temperature variations and electrical interference due to the presence of sensors installed on them. These elements could affect their overall performance and precision. 

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Why use a proportional valve?

A proportional valve provides a change in output pressure or flow in the same ratio as the change in the input; for example, if the input doubles then the output will also double.

What are the key features?

Proportional Valves are suited to applications where output pressure will vary - either in steps or continuously. Stepped output pressure means the pressure is held at one value before the pressure is increased to another value. Continuous output pressure is where pressure is continually increased at a set rate.

Proportional Valves can be interconnected, for example, the output from one being used as an input to another. Many are programmable, with onboard diagnostics, making them highly suited to Industry 4.0 system design.

They are dependable, cost-effective (particularly air-pilot operated), give fast response and consistent control.".

What are the benefits?

Proportional Valves can help reduce cycle times, by quickly achieving a stable pressure. They have a fast, precise response, which will improve efficiency. They also give repeatable control and pressure output, giving an expected response each time.

What are the key considerations for selection?

There are some basic parameters to consider. Firstly, what is being controlled? Pressure, flow or some other characteristic. What input and output pressure range will be required, and at what range of flow rates? What is the likely operating temperature that the Proportional Valve will experience? Are there other environmental considerations, such as a wet and dirty application.

It is important to consider if the process is a static, a step-by-step, or dynamic one. This may very well dictate the response time required and hysteresis performance.

Cost may be a consideration and, as stated, air pilot operated valves are particularly cost-effective.

What are the typical applications?

Proportional Valves are suited to analytical and test instrumentation, process applications such as tensioning, spraying and blow moulding. They are also found in medical and foundry applications. However, they can also be used in many other applications. Please contact us with any specific enquiries.

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