Why Consulting a Valve Expert Is Essential for Process Control Success

Designing process control systems that require industrial control valves demands a high level of expertise and precision. Industrial control valves play a pivotal role in regulating flow, pressure, temperature, and fluid levels within various industrial processes. Any misstep in their selection or implementation can lead to inefficient operations, safety hazards, and increased costs. Therefore, consulting with an experienced process control valve expert becomes not just beneficial but critical in ensuring the success and safety of these systems.

Industrial control valves come in an array of types, materials, sizes, and specifications. Each valve must meet the specific demands of the process conditions it will encounter, such as temperature extremes, corrosive substances, or high-pressure environments. An experienced valve expert possesses in-depth knowledge of these variables and understands how they interact within a complex system. They can navigate the intricate details a general engineer might overlook, ensuring that the selected valves align perfectly with the system's requirements.

Moreover, valve experts stay abreast of the latest technological advancements and industry standards. They bring insights into new materials, designs, and control technologies that can enhance system performance. By leveraging their expertise, they can recommend valves that meet current needs and offer scalability and adaptability for future process changes. This forward-thinking approach can save time and resources in the long run, preventing the need for costly overhauls or replacements down the line.

The financial implications of improper valve selection or implementation are significant. Incorrect valves can lead to leaks, equipment damage, or system failures, resulting in unplanned downtime and repair costs. An experienced valve expert can mitigate these risks by ensuring that every valve is suited to its specific function and environment. They can conduct thorough assessments and simulations to predict how valves will perform under various conditions, thereby preventing potential issues before they arise.

Safety is another paramount concern in industrial processes. Valves not appropriately selected or maintained can pose serious safety risks, including explosions, fires, or exposure to hazardous substances. Valve experts understand the critical safety standards and regulations that govern industrial operations. They ensure that all valves comply with these standards, providing peace of mind that the system operates safely and efficiently. Their expertise can also contribute to a safer work environment by reducing the likelihood of accidents caused by valve failures.

In addition, collaborating with a valve expert fosters better communication and understanding among the engineering team. These experts can bridge gaps between disciplines, ensuring that mechanical, electrical, and control systems work harmoniously. They can provide valuable training and support to the team, enhancing overall competency and confidence in managing the control system.

Time efficiency is yet another benefit of involving a valve expert. Designing and implementing control systems is a time-sensitive endeavor, and any delays can have cascading effects on project timelines and budgets. Valve experts streamline the selection and implementation process, making informed decisions quickly and accurately. Their experience allows them to anticipate and address challenges proactively, keeping the project on schedule.

The complexity and critical nature of industrial control valves necessitate the involvement of an experienced process control valve expert in the design of process control systems. Their specialized knowledge ensures optimal valve selection, enhances system performance, reduces financial risks, and upholds safety standards. Engineers and project managers can achieve a more efficient, reliable, and safe control system by consulting with these experts. It is an investment that pays dividends in operational excellence and peace of mind, underscoring the indispensable role that valve experts play in industrial process control.

CTi Controltech
https://cti-ct.com
925-208-4250

Fluid Processing - Plug Valves

Plug valve cutaway view
Image courtesy Flowserve - Durco

Fluid process control operations commonly employ pumps, piping, tanks and valves as the means of transporting, containing and controlling the fluid movement through a system.

Valves, of which there are many types, provide control over the flow rate, direction and routing of fluids in a processing operation. Flow can be started, stopped or modulated between zero and full rate using a properly sized and configured valve. Some valves enable media flow to be diverted to a selection of outlets, in lieu of a single inlet and outlet pair. Specialized valves regulate inlet or outlet pressure, or prevent fluid flow from going in an undesirable direction. All of these capabilities are packaged into differing valve product offerings that present a very large selection array to a process designer or engineer.

Industrial flow control valve types are generally classified according to the structure or arrangement contained within the valve body that provides obstruction to fluid flow. Some of the common types are ball, butterfly, gate, globe, and plug. Surely, there are more valve types, and this article is not intended to list them all. Some of our previous blogs have discussed selection considerations for gate, ball and butterfly valves. This article will focus on one of the oldest valve types, the plug valve.

Plug valves, like ball and butterfly valves, span from fully open to fully closed positions with a shaft rotation of 90 degrees. The “plug” in a plug valve is installed in the flow path within the valve body and rotated by means of a stem or shaft extending to the exterior of the body. Plugs are often tapered toward the bottom and are fitted to a seating surface in the valve body cavity that prevents fluid from bypassing the plug. An opening through the plug, the port, can be shaped to provide particular flow characteristics. There are numerous variants of the basic plug valve which may make it suitable for particular applications. One common variant is the lined or sleeved plug valve, with an insert or interior lining of material that creates an isolating barrier between the valve body and the media. This allows use of less expensive materials for the body construction that may be otherwise subject to corrosion by exposure to aggressive media.

Plug valves can be selected for a number of attributes.

• 90 degree rotation from open to closed provides fast operation.
• With proper configuration, can be well suited for frequent operation.
• Availability of corrosion resistant liner may provide comparative cost savings because valve body can be constructed of less expensive material.
• Design is simple and employs a low parts count.
• Valve can be serviced in place.
• Generally, low resistance to flow when fully open.
• Reliable leak-tight service due to tapered plug wedging action, replaceable sleeve, and injection of lubricant in some variants.

Potential issues of concern for plug valve application include a short list of items.

• Higher friction in the plug closure mechanism may require comparatively higher operating torque than other valve types.
• Without a specially designed plug, generally not well suited for throttling applications.
• Rapid shutoff delivered by plug design may not be suitable for some applications where hammering may occur.

Share your fluid control application challenges with a valve and automation specialist. Leverage your own knowledge and experience with their product application expertise to develop an effective solution.