5 Considerations When Choosing Pneumatic Control Valves

When it comes to selecting the right type of pneumatic control valve for any application, you have many options at your disposal. Each comes with its own specific function, so it is helpful to understand differences and pick the type best-suited for your requirements.

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To help you arrive at the valve &#;type&#; that&#;s right for your pneumatic application, this post will highlight five basic requirements to consider:

Media

The first and most obvious question is&#;what gas (or liquid) will be controlled by this pneumatic control valve, and at what input pressure? Compressed Air? Water? Negative Pressure? Gas? Before checking for any additional factors, ensure that the valve is compatible with the media and pressure passing through.

Method of Valve Actuation

There are a variety of methods available to open or close a pneumatic control valve. The four most common methods of valve actuation are:

• Solenoid operated (via electrical current)
• Manually operated (by skilled labor and via a lever, pushbutton, foot peddle, etc.)
• Mechanically operated (via tooling or work pieces in contact with a cam, ball or plunger)
• Remote air operated (from an output signal of another valve).

Spring-Return Valve or Detented Actuation Valve?

This is the return method the pneumatic valve will take &#;back&#; to its original, un-actuated state. Typically, this is either a mechanical spring, or a separate form of the same actuation method described above. Manufacturers call these methods &#;spring return&#; and &#;detented&#; valve types. Said another way, are you looking for a &#;momentary contact, momentary output&#; or &#;momentary contact, maintained output&#;? Decide whether you want your valve to return to its initial position or stay in its last position after actuation.

Pneumatic Control Valve Configuration

Most pneumatic control valves are 2-Way, 3-Way or 4-Way and, as a rule of thumb, it is a count of their active media ports:

• 2-Way Valves: Have one INLET and one OUTLET port and, upon actuation, allow media to pass through (known as a 2-way Normally Closed), or to stop flow (2-way Normally Open).
• 3-Way Valves: These add a third port to allow for venting (EXHAUST port) of pressure at the OUTLET port, when the INLET port is blocked. 3-Way valves are offered Normally Closed or Normally Open, as well.
• 4-Way Valves: These add a second OUTLET and corresponding second EXHAUST port to the 3-Way function, and are most commonly used for control of double acting pneumatic cylinders and actuators. Upon 4-Way Valve actuation, INLET pressure switches from one OUTLET port to the other.

Note: As an option, 4-Way valves can be configured with 3 positions, where the center position is forms a &#;neutral&#; position choice of three options (either all OUTLET ports exhausted, pressurized, or checked).

Flow Capacity (Valve Size)

Flow capacity is a fifth factor to address in pneumatic control valve selection. An undersized valve will slow down fill time or cause other forms of inefficiency in the system while an oversized valve can be classified as a form of waste in the system. It&#;s important to estimate a maximum flow capacity for your application and select the valve size with enough capacity. All valve suppliers provide a flow capacity, and have easy reference material to assist you, but essentially your valve will need to fill a specific downstream volume within your acceptable period of time.

Tip: Most manufacturers state a &#;Cv&#; value, which is a universally accepted flow capacity index, known as &#;flow coefficient&#;. It forms an easy way for you to compare similar sized valves.

Pneumatic Control Valves From Humphrey Products

Once you&#;ve used these five factors to identify the valve type you need, then weigh specific performance and integration attributes of matching brands and models available from valve manufacturers. Still a bit overwhelmed? Don&#;t worry! We&#;ve made it easy to browse our online catalog and narrow your results until you have found the exact products needed for your specific application. You can even search within results for the exact terms you&#;re looking for.

If you&#;d like more help choosing the right pneumatic control valve, or have questions about any of our products, please contact us at 1-800-477-.

The Chinese manufacturing market is very diverse. Many manufacturers produce high-quality valves, and everyone claims to be the best. But it is on us to choose manufacturers carefully. Therefore, Knowing how to choose the right valve manufacturer in China is paramount.

During selection, you must consider some key factors. They will help you choose a reliable China valve manufacturer. Remember, if you choose the wrong one, it will significantly affect your project. But worry not! This article highlights key factors to help you pick the proper valve manufacturer. So, let&#;s get started. 

Importance of Choosing the Right Valve Manufacturers

Selection of suitable valve manufacturers. One small mistake would take you to the wrong manufacturers. As a result, you&#;ll get compromised quality with a lack of satisfaction. Here is why you must choose a suitable valve manufacturer: 

• The proper valve manufacturer ensures the quality of the product. It offers a durable valve that lasts long and saves you money.

• Safety is a significant concern when dealing with a valve. The proper manufacturer provides a valve with safety standards.  These safety standards ensure that the valve is suitable for high-risk operations. 

• A good manufacturer also provides a valve with customization options. For example, a customized valve not only controls the pressure. It also handles temperature fluctuations. 

• Choosing a trustworthy valve manufacturer is crucial because it offers a warranty. In case of any malfunction, you can return it. Moreover, it also provides customer support, which gives mind satisfaction. 

• A reliable valve manufacturer builds trust with customers. They understand the customer&#;s requirements. Next time, you don&#;t need to explain your project&#;s requirements. It creates a long-term relationship between customers and the manufacturer.  All these factors enhance the reputation and productivity of your business.

Key Factors to Consider When Choosing a Valve Manufacturer in China

Not all companies in China manufacture equal-quality valves. It is very challenging to choose the best manufacturers among those. But worry not! Here are some key factors that must be kept in mind. If your chosen manufacturer fulfills this criterion, it is reliable, and vice versa. You treat the factors below as a small checklist. Let&#;s go as I explain each factor in more detail.

1- Quality Standards and Certifications

Every industry has some set standards. Different organizations make those standards after deep research. Those standards involve the production process and guidelines to ensure high-quality valves. Examples of those standards include ISO , ASME, and API certification. Valves produced by aligning with these standards are durable. 

2- Manufacturer&#;s Reputation and Experience

Another critical factor to consider is the manufacturer&#;s market reputation. For this purpose, you can check customer reviews from their official website. A company with positive feedback can be considered a trustworthy option. If you have a nearby company, it is best to visit them, use their valves, and get reviews.

Above all this, a manufacturer&#;s experience also matters. A well-experienced manufacturer is more likely to understand your requirements. Moreover, its expertise ensures the quality of valves. All this information can be collected online. However, another better way is to visit the faculty and ask for this information. 

3- Customization Capabilities

You should always choose a Chinese valve manufacturer that offers customization options. Valves need a flexible design for easy installation. So, your chosen manufacturer helps make valves with flexible designs.

Moreover, he should also help customize valve end connections. This would ensure better valve control. Remember, the material is essential, too. If the valve is for a hydraulic system, it must handle high pressure. If it&#;s for a harsh environment, it should resist corrosion. These customization features improve performance and efficiency.

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4- Material Selection

Many kinds of materials are used in manufacturing valves. Those include plastic, metals, and alloys.  All those materials vary in terms of durability and applications. However, their selection depends on the nature of your project.  Select a manufacturer that provides a range of valve materials.

Moreover, ask for material specifications. For instance, what are the chemical properties of that material? How is it appropriate to your project?  All these questions indicate that the manufacturer supplies excellent material.  Similarly, it also shows they have complete knowledge of the production process. 

5- Export Experience

If you are an international client, it is the most essential factor. There are many terms related to global export.  For example, export rules, taxes, handling, and safety. Not all manufacturers cope with those terms smoothly. 

Therefore, before choosing, search for each manufacturer&#;s track record. This includes a list of countries where they have provided their services and for how many years. If your country is listed, ensure they have experience with exports and regulations.

6- Production Capacity and Lead Time

Production capacity shows how many valves a manufacturer can produce annually or monthly. All manufacturers have different capacities. Accordingly, choose a manufacturer with a significant capacity. For example, you need 20,000 valves in a month. Ensure their production procedure is fast enough to produce them quickly. 

However, lead time demonstrates how long it takes to deliver an order. Lead time highly influences the growth of your business. Go for a manufacturer with less lead time. This means they will deliver your order in less time. Ensure that they are flexible with production capacity and lead times. If you need valves urgently, they can be produced and delivered on time. 

7- Technical Support and After-Sales Service

A good manufacturer always respects its customers before and after purchase. Prefer a manufacturer that offers complete guidance for technical issues. For example, they offer on-time guidance for malfunctions or installation problems. Moreover, make sure they provide a long-term warranty and repair services. 

It is better to investigate whether manufacturers provide separate parts. This is helpful in case you need to replace any part of the valve. Lastly, some manufacturers offer customer training. This includes resolving minor technical issues, installation, and proper maintenance. 

8- Pricing and Value for Money

All Chinese valve manufacturers vary in terms of pricing.  For example, some manufacturers offer low-priced valves but do not offer a warranty. Moreover, the durability of the product is also compromised. Therefore, before selecting any manufacturer, compare the prices and qualities of valves. 

A good manufacturer may be costly, but they provide mind satisfaction in each aspect. Furthermore,  they provide durable valves that do not require constant repair. So, overall, a high-priced manufacturer supplying suitable quality valves is worth it. 

Frequently Asked Questions

How do warranties add value when choosing a valve manufacturer?

Warranties ensure that the valve is durable and long-lasting. However, if it malfunctions, you can return it within a given time with a simple procedure. It gives you peace of mind that the manufacturer will accept a return in case of any issue.

How do I know if a manufacturer offers good value for money?

Many factors justify that a manufacturer offers good value for money.  E.g., an extended warranty, 24/7 customer service, and customization. All these factors ensure the quality of the valves and save repair costs. 

Why is it important to check a manufacturer&#;s portfolio of past projects?

The manufacturer&#;s portfolio of past projects indicates that they are experienced. It ensures that they have been meeting the customer&#;s requirements for years. So, they will also provide you with superior quality valves on time. 

Conclusion

China is famous for using technology in every field.  Valves manufacturing industries are no exceptions. Therefore, China provides a wide variety of valve manufacturers. Selecting the high-quality China valve manufacturer among those is very important. It can affect the efficiency and productivity of your project. But you don&#;t need to worry about their selection. 

This guide has explored many factors to consider before selecting them. For example, you should check the manufacturer&#;s reputation and export experience. Apart from this, ensure they meet each criterion of your requirements. For instance, they should have a range of design and customization options. You should also consider the price of manufacturers before making a final decision.

Are you interested in learning more about flow control globe valve? Contact us today to secure an expert consultation!