When Old School is Best: The Continued Relevance of Electro-Mechanical Switches in Modern Process Control

Simple solutions, like electro-mechanical pressure and temperature switches, are often favored in specific industrial process control applications due to their inherent reliability and straightforward functionality. In the bustling environment of an industrial plant, complexity can introduce potential points of failure. While offering a broader range of functionalities and detailed diagnostics, sophisticated digital transmitters can be susceptible to software glitches, require periodic updates, and may be sensitive to electromagnetic interference from surrounding equipment. Furthermore, the cost of purchasing, installing, and maintaining these sophisticated instruments can be significantly higher than that of basic switches. On the other hand, electro-mechanical switches provide immediate, direct responses with minimal chances of malfunction, making them particularly suitable for applications that demand high reliability and quick actions. Their simplicity also means reduced training for operators, easy maintenance, and straightforward troubleshooting. In scenarios where continuous monitoring or data logging isn't essential but reliable actuation is, these traditional switches often emerge as the more pragmatic choice.

Electro-mechanical pressure and temperature switches have been a staple in the process control industry for many decades. Even with the advent of newer digital technologies, these traditional switches remain essential in many factory and plant automation instrumentation schemes. Here's a detailed breakdown of why these devices are still considered vital:

• Simplicity and Reliability: Electro-mechanical devices function on straightforward principles, such as the expansion of a bimetallic strip in response to temperature changes or the deformation of a diaphragm in response to pressure variations. These switches, having few moving parts, are inherently reliable. They don't suffer from software bugs or require firmware updates.
• Direct Control: Electro-mechanical switches can be wired directly to the control elements like solenoids, relays, or alarms, providing immediate response without needing an intermediary control system or software processing.
• Fail-Safe Operations: In safety-critical applications, it's sometimes preferable to have a direct-acting, mechanically-driven switch that can actuate an emergency shutdown or trigger alarms. These switches' inherent "on/off" nature ensures a definite state.
• Cost-effective: Electro-mechanical switches are generally less expensive than their electronic counterparts, especially for applications that don't require continuous monitoring or advanced functionalities.
• Low Power Requirements: Unlike electronic sensors that may need continuous power, these switches only consume energy when they change state, making them energy-efficient for specific applications.
• Resilience to Electromagnetic Interference (EMI): Electro-mechanical devices, being fundamentally mechanical in operation, are less susceptible to EMI, which can be a concern in industrial environments with heavy machinery and electrical equipment.
• Long Lifespan: Many electro-mechanical switches are known for their durability and long operational lifespan, mainly used within their design specifications.
• Versatility: They work in environments where advanced electronics, such as high-temperature areas or corrosive materials, might fail.
• Independent Operation: These switches do not necessarily rely on centralized control systems. This decentralization can be an advantage in scenarios where a failure in the central system shouldn't impact local controls.
• Ease of Integration: The infrastructure is built around electro-mechanical devices for many older plants and factories. Integrating newer electronic devices might require significant overhauls while continuing with electro-mechanical solutions offers seamless integration.

While electronic sensors and digital systems offer advanced functionalities and integration capabilities, there's still a strong case for the simplicity, reliability, and directness of electro-mechanical pressure and temperature switches. As with many technologies in the process control industry, the "best" choice often depends on the specific needs of the application and the context in which the device is applied.

Miller Energy, Inc.
https://millerenergy.com
800-631-5454

High-Performance Non-Slam Check Valves

The industrial sector demands reliable and efficient machinery to support complex processes. High performance non-slam check valves are integral to these industrial systems, ensuring smooth, uninterrupted operations. 

Advantages of using non-slam check valves in industrial process applications:

Swift Response Time: Non-slam check valves react quickly to flow changes. They have a short disc stroke, which means the valve disc travels a small distance from fully open to fully closed. This quick response time prevents the sudden surge or water hammer, thus protecting the pipeline systems.

Minimized Water Hammer: Water hammer occurs when fluid in motion suddenly stops or changes direction. It creates a shock wave in the pipeline, damaging pipes, joints, and other equipment. The design of non-slam check valves enables them to close quickly but gradually before reverse flow begins. This mechanism minimizes the possibility of water hammer, enhancing the lifespan and operational efficiency of the system.

Reduced Pressure Drop: Non-slam check valves have a streamlined flow path and low head loss design, allowing optimal flow with minimal resistance. This reduced pressure drop translates to more energy-efficient operations and, in turn, reduces operational costs.

Longer Equipment Lifespan: Non-slam check valves are constructed from robust and high-quality materials, ensuring a longer service life than traditional check valves. They are resistant to corrosion, erosion, and wear, which reduces the frequency of replacements and maintenance, saving time and resources in the long run.

Low Maintenance: The design of non-slam check valves, with its anti-slam feature, minimizes wear and tear on valve components. This low-maintenance aspect of the non-slam check valves means fewer operational disruptions and reduced maintenance costs.

Versatility: Non-slam check valves are suitable for various industrial applications, including chemical processing, power generation, water treatment, oil and gas processing, and more. Their adaptability across multiple industries makes them a cost-effective and reliable choice for managing process flow.

Compact Design: Non-slam check valves are often more compact than traditional check valves, making them ideal for installations where space is at a premium. The smaller footprint allows for more flexibility in system design and ease of installation.

Enhanced Process Efficiency: The quick response time, minimized water hammer, and reduced pressure drop of non-slam check valves collectively lead to a more efficient process operation. These factors ensure the smooth flow of process materials, minimize downtime and reduce operational costs.

High performance non-slam check valves are crucial in industrial process applications. Their numerous benefits, including swift response time, minimized water hammer, reduced pressure drop, and enhanced process efficiency, make them invaluable in maintaining smooth and cost-effective industrial operations.

Miller Energy, Inc.

https://millerenergy.com

800-631-5454

Vaisala Polaris™ Refractometers: Enhancing Process Efficiency and Product Quality

Industrial refractometers are pivotal in process automation, bolstering product uniformity, amplifying productivity, and curbing wastage. These tools determine a substance's refractive index, calculating the extent of light bending as it traverses a sample. This information furnishes critical data regarding a solution's composition and concentration, serving as a linchpin in several industrial operations.

These refractometers prove particularly beneficial in the food and beverage sector, enabling precise quantification of sugar content in various products such as juices and jams. They foster product consistency by ensuring uniformity in flavor and texture while fulfilling regulatory standards. Similarly, in pharmaceutical manufacturing, refractometers determine the concentration of active ingredients in medicines, which is crucial for their efficacy and safety. The pulp and paper industry and semiconductor manufacturing also leverage these devices to assess the concentration of dissolved solids at multiple production stages. Moreover, these instruments gauge the concentration of dissolved solids like salts and acids in chemical production, bolstering the production process's effectiveness.

Automating the refractive index measurement through industrial refractometers eliminates manual testing's need, cutting down on errors and augmenting process efficiency. It also helps reduce labor costs linked to manual testing. These automated refractometers can be integrated into broader process control systems, facilitating continuous monitoring and control of essential process parameters.

Vaisala, a frontrunner in creating and manufacturing environmental and industrial measurement systems, has introduced its new product, Vaisala Polaris™. This innovative product line enhances manufacturing processes, improving productivity, conserving resources and energy, and saving time across diverse industries and countless applications.

Vaisala Polaris™ leverages an optical measurement principle that coupled with the absence of moving parts, negates the need for regular maintenance. This feature positions the product as an efficient, reliable solution for businesses necessitating consistent measurement readings. The product easily synchronizes with Vaisala's Indigo520 transmitters right out of the box, ensuring a smooth setup process. Vaisala has also curated a library of over 500 concentration models to enable exact measurements of diverse dissolved solids, meeting clients' requirements.

With no risk of drift due to particles, bubbles, or color influencing the readings, Vaisala Polaris™ guarantees unmatched precision. Its long-term stability and absence of moving parts promise several years of consistent, accurate measurements. Moreover, Vaisala offers an Engineer to Order service for more extensive needs, enabling product customization to suit the specific requirements of their clients.

In summary, industrial refractometers are:

• Indispensable tools in process automation.
• Boosting product quality and uniformity.
• Enhancing efficiency.
• Minimizing waste and costs.

As automation technology progresses, these monitoring instruments' significance is poised to escalate in industrial environments. With its superior performance, Vaisala Polaris™ is a state-of-the-art technology ideally suited for your application.

Miller Energy, Inc.

800-631-5454

https://millerenergy.com

Industrial Valve Automation Services from Miller Energy

Miller Energy, Inc. is at the forefront of delivering innovative and comprehensive industrial valve automation solutions that cater to various industries, including oil and gas, chemical, power, and water treatment. With a proven track record, Miller Energy has consistently demonstrated its ability to provide high-quality products and services that exceed customer expectations. 

State-of-the-Art Technology

Miller Energy leverages the latest advancements in valve automation technology to deliver high-performance products that withstand the most demanding industrial applications. Our engineers and technicians work to ensure that every solution offers precise engineering, unparalleled reliability, and durability.

Customized Solutions

Understanding that each industrial application is unique, we offer customized valve automation services to meet the specific requirements of every application. Our team of experts works closely with customers to develop tailored solutions that ensure seamless integration with their existing infrastructure and processes.

Exceptional Customer Service

Our commitment to exceptional customer service is unwavering. From the initial consultation to after-sales support, our team provides a seamless experience. We pride ourselves on our proactive approach to addressing customer concerns and offering timely assistance to ensure your satisfaction.

Wide Range of Products

With an extensive selection of valve automation products, Miller Energy, Inc. has the ideal solution for any industrial application. Our offerings include:

1. Automated Ball Valves
2. Automated Butterfly Valves
3. Automated Control Valves
4. Automated Knife Gate Valves
5. Actuators (pneumatic, electric, and hydraulic)
6. Accessories (positioners, solenoid valves, limit switches, etc.)

Quality Assurance

We understand the importance of quality assurance in the success of your operations. That's why we dedicate ourselves to ensuring that our products and services adhere to the highest industry standards. Our rigorous quality control processes guarantee you receive reliable and efficient valve automation solutions every time.

Industry Expertise

Miller Energy boasts an exceptional team of industry experts with decades of experience in valve automation. Our professionals possess the skills, knowledge, and expertise to provide unrivaled guidance and support throughout your valve automation systems' design, installation, and maintenance.

Sustainability and Environmental Responsibility

As an industry leader, we are committed to promoting sustainable practices and environmental responsibility. Our innovative products and services contribute to reduced energy consumption, lower emissions, and minimized waste, allowing your organization to operate more efficiently while reducing its environmental impact.

Miller Energy is your one-stop shop for state-of-the-art valve automation services. With a focus on innovation, customization, quality, customer satisfaction, and dedication to providing the best solutions for your industrial needs. Trust in our expertise and experience to propel your operations to new heights of success. Contact us today to discuss how we can help optimize your valve automation systems.

Miller Energy, Inc.
800-631-5454
https://millerenergy.com

Thermal Mass Flow Controllers & Meters for the Harshest Environments

Thermal Mass Flow Controllers (MFCs) play a crucial role in process control applications by precisely and accurately controlling gas flow rates in various processes. They are used across multiple industries and applications to ensure stable, repeatable, and efficient process conditions. Some of the critical areas where Thermal MFCs are applied include:

1. Semiconductor Manufacturing: In semiconductor fabrication processes, such as chemical vapor deposition (CVD) and plasma etching, MFCs control the flow of process gases to maintain accurate gas ratios and reactant concentrations, ensuring consistent wafer quality.
2. Pharmaceutical and Biotechnology: MFCs apply in processes such as fermentation, cell culture, and gas chromatography, where they regulate the flow of gases like oxygen, carbon dioxide, and nitrogen to maintain optimal growth conditions for biological cultures or to separate and analyze various compounds.
3. Chemical Processing: In chemical synthesis and reaction control, MFCs manage the flow of reactants and carrier gases to maintain the proper stoichiometry and reaction conditions, ensuring high-quality product yields and safe operations.
4. Solar Cell Manufacturing: MFCs apply in processes such as thin-film deposition and chemical etching, where they control the flow of process gases to create uniform layers and achieve precise etching profiles for high-efficiency solar cells.
5. Fuel Cell Development: In fuel cell research and manufacturing, MFCs regulate the flow of hydrogen, oxygen, and other gases to maintain optimal conditions for efficient energy production and long-lasting performance.
6. Environmental Monitoring: MFCs are used in air quality monitoring and emissions testing systems to control the flow of calibration gases, ensuring accurate measurements and compliance with environmental regulations.
7. Laboratory Research: In various research applications, such as mass spectrometry, gas chromatography, and flow chemistry, MFCs provide precise control over gas flow rates for accurate analysis and experimental conditions.

Thermal Mass Flow Controllers are essential components in process control systems, providing the accuracy, precision, and repeatability required for maintaining optimal process conditions and ensuring high-quality results across diverse industries and applications.

Brooks Instrument SLAMf Series Thermal Mass Flow Controller

The Brooks Instrument SLAMf Series Thermal Mass Flow Controller is an innovative and cutting-edge solution for accurately controlling and measuring gas flow in a wide range of industries and applications. This state-of-the-art flow controller meets the highest performance, reliability, and flexibility standards, ensuring seamless integration into your process control systems.

The SLAMf Series boasts several unique features that set it apart from its competitors. With its patented MultiFlo™ technology, users can easily configure the controller for multiple gases and flow ranges without sacrificing accuracy or requiring recalibration. This results in a highly versatile device capable of meeting the demands of diverse applications.

Another standout feature of the SLAMf Series is its ultra-fast response time, facilitated by the advanced sensor design and high-speed digital signal processing. It ensures that your processes are consistently controlled with precision, minimizing the risk of variations and improving overall efficiency.

The robust construction and corrosion-resistant materials used in the SLAMf Series make it suitable for even the most challenging environments. Its compact design allows easy installation in tight spaces, making it an ideal choice for various industries, such as semiconductor manufacturing, pharmaceuticals, chemical processing, and research facilities.

Typical applications for the Brooks Instrument SLAMf Series Thermal Mass Flow Controller include gas mixing and blending, gas delivery, process control, and environmental monitoring. With its unparalleled performance, adaptability, and durability, the SLAMf Series is the ultimate choice for professionals seeking the best in flow control technology.

Miller Energy, Inc.
800-631-5454
https://millerenergy.com

Process Mass Spectrometers

Process mass spectrometers are versatile analytical instruments that accurately identify and quantify chemical compounds in a sample based on their mass-to-charge ratios. Mass spectrometers are crucial in monitoring and regulating various processes in industrial process control applications to ensure product quality, safety, and efficiency. Here, we will list applications for mass spectrometers in process control.

1. Process monitoring and optimization: Mass spectrometers continuously monitor the concentrations of various components in a process stream, providing real-time data on the composition of raw materials, intermediates, and final products. By analyzing these data, process engineers can quickly identify deviations from the desired process conditions and take corrective actions to optimize the process, reduce waste, improve energy efficiency, and improve overall process control.
2. Leak detection and control: Mass spectrometers can detect and quantify leaks in industries where hazardous or volatile gases are involved. They can rapidly identify the presence of specific gases and quantify their concentrations, enabling prompt corrective actions to minimize the risk of accidents, environmental damage, and product contamination.
3. Quality control and assurance: Mass spectrometers analyze product samples at various stages of the manufacturing process to ensure that they meet specified quality standards. They can identify and quantify impurities, contaminants, or undesired by-products that may affect the final product's performance, safety, or shelf life. This information is vital for maintaining product consistency and complying with regulatory requirements.
4. Reaction monitoring and kinetic studies: In chemical and pharmaceutical industries, mass spectrometers can study reaction kinetics and monitor the progress of chemical reactions in real time. By determining the concentrations of reactants, intermediates, and products, researchers can better understand reaction mechanisms, optimize reaction conditions, and improve the overall process efficiency.
5. Environmental monitoring and emissions control: Mass spectrometers are employed to monitor emissions from industrial processes, ensuring that they comply with environmental regulations. They can detect and quantify trace levels of pollutants, such as volatile organic compounds (VOCs), greenhouse gases, or particulate matter, helping industries to reduce their environmental impact and comply with legal requirements.
6. Catalyst evaluation and development: Catalysts are crucial in many industrial processes, and mass spectrometers can evaluate their performance by monitoring the reaction products and intermediates. This information is valuable for developing and optimizing new catalysts, ensuring that they are efficient, selective, and stable under the required operating conditions.

In summary, mass spectrometers are indispensable tools in industrial process control applications. Their ability to provide rapid, accurate, and sensitive analyses of process streams, emissions, and products makes them invaluable for monitoring, optimization, and quality control. As a result, they play a significant role in ensuring the safety, efficiency, and sustainability of various industries.

9 Reasons Why Industrial Control Valves Fail

9 Reasons Why Industrial Control Valves Fail

1) Improper Sizing

To properly size an industrial control valve, take the following steps:

• Determine the process flow rate, pressure drop, and fluid properties.
• Select the type of control valve based on the process conditions and application requirements.
• Choose a valve with the correct Cv (flow coefficient) for the desired flow rate and pressure drop.
• Consider the operating temperature, pressure, and any special requirements (such as high-temperature, corrosive, or abrasive fluids).
• Check that the valve meets all applicable industry standards.

Always consult a control valve manufacturer or an engineer with expertise in control valves for a more accurate and detailed evaluation.

2) Improper Installation

To ensure the proper installation of an industrial control valve, take the following steps:

• Verify that all valve components are correct and undamaged.
• Check that the piping and valve are correctly aligned and supported.
• Use the proper gaskets and seals to prevent leakage.
• Check the actuator mounting and connection to the valve body.
• Make sure the control wiring is correct and properly connected.
• Test the valve's operation and adjust as necessary.
• Flush the piping system to remove any debris before installation.
• Follow all relevant safety procedures and guidelines.

It is critical to consult with the valve manufacturer's installation manual and guidelines and have a professional trained in industrial control valve installation conduct the installation process.

3) Material Incompatibility

Material compatibility refers to the ability of a material to resist chemical attack, degradation, and corrosion from the process fluid. Material compatibility in industrial control valve installation is crucial because it ensures the valve's long-term reliability and prevents premature failure.

Ensure proper material compatibility by following these steps:

• Identify the chemical composition of the process fluid and any potential impurities.
• Determine the operating temperature and pressure of the fluid.
• Select valve components made of materials compatible with the fluid and conditions.
• Consider the effect of any potential impurities on the valve components.
• Choose materials that have sufficient corrosion resistance to prevent degradation.

You need to consult a control valve manufacturer or a materials engineer for expert guidance on material selection for a specific application.

4) Erosion/Corrosion

Erosion and corrosion affect industrial control valves because they can lead to valve failure and reduce the valve's lifespan. Erosion occurs when fluid velocity in the valve causes physical wear on the valve components. Corrosion is the chemical degradation of the valve material due to exposure to harsh chemicals or corrosive environments.

Mitigate erosion and corrosion with the following measures:

• Using corrosion-resistant materials such as stainless steel, Hastelloy, or titanium.
• Applying protective coatings like nickel plating, hard-chroming, or ceramic coatings.
• Regular inspection and maintenance to detect signs of wear and corrosion and replace parts before failure occurs.
• Using proper fluid handling practices, such as filtration, to remove abrasive particles from the process media.
• Installing isolation devices like piping spools, strainers, or blow-off valves to protect the valve.

These measures help ensure reliable operation and extend the life of industrial control valves.

5) Overloading

Overloading refers to a situation in which an industrial control valve is subjected to a load or stresses greater than its design capacity, causing damage or failure. Overloading occurs due to various factors, including improper sizing, incorrect application, or changes in operating conditions.

Prevent overloading with the following measures:

• Proper sizing of the valve based on the operating conditions and fluid characteristics.
• Use a suitable type of valve for the specific application, such as a high-pressure control valve for high-pressure systems.
• Regularly monitor operating conditions and fluid characteristics to detect changes and adjust the valve settings accordingly.
• Maintain the valve according to the manufacturer's instructions and replace worn or damaged parts.
• Use a safety relief valve or bypass system to relieve excess pressure and protect the control valve.

By following these measures, industrial control valves can be protected from overloading and failure, ensuring reliable operation and system safety.

6) Excessive Wear

Excessive wear on industrial control valves can significantly impact their performance. The following are some ways excessive wear can affect the performance of control valves:

• Reduced accuracy: Worn components can cause the valve to become misaligned or damaged, affecting its ability to control fluid flow accurately.
• Increased leakage: Worn seals, seats, or other components can cause increased fluid leakage, affecting the overall performance of the valve.
• Decreased flow control: Worn components can alter the flow characteristics of the valve, causing it to become less responsive or to control flow inaccurately.
• Increased pressure drop: Excessive wear can cause an increase in the pressure drop across the valve, reducing system efficiency and increasing energy costs.
• Increased maintenance requirements: Wear and damage to the valve components can result in increased maintenance needs, adding to operational costs and reducing reliability.

Prevent excessive wear of the control valves by regularly inspecting, maintaining, and replacing them as needed to ensure optimal performance and reliability.

7) Improper Maintenance

Improper maintenance of industrial control valves can have a significant impact on their performance, including:

• Reduced accuracy: Neglecting to perform regular calibrations or making incorrect adjustments to the valve can lead to reduced accuracy in flow control.
• Increased leakage: Failure to replace worn or damaged seals and gaskets can result in increased fluid leakage, affecting the valve's overall performance.
• Decreased flow control: Improper cleaning or repairs can alter the flow characteristics of the valve, reducing its ability to control flow accurately.
• Increased pressure drop: Neglecting to clean or replace dirty or clogged components can increase pressure drop across the valve, reducing system efficiency and inflating energy costs.
• Increased downtime: Improper maintenance can lead to valve failure, resulting in increased downtime and decreased productivity.

It is essential to follow the manufacturer's instructions and perform regular, scheduled maintenance to ensure optimal performance and reliability of industrial control valves.

8) Process Contamination

Process contamination in industrial control valves can harm operation by clogging or eroding internal parts, causing valve malfunction or failure. It can also lead to decreased process efficiency and increased maintenance costs. Prevent process contamination by implementing the following steps:

• Proper material selection: Using appropriate materials that are resistant to the specific process fluid and contaminants is vital.
• Regular maintenance: Regular cleaning and replacement of internal components can help prevent a build-up of contaminants.
• Installing filtration systems: Installing filters upstream from control valves can help remove contaminants before they reach the valve.
• Installing protection devices: Installing protective devices, such as strainers or deflectors, can help prevent larger particles from entering the valve and causing harm.
• Implementing best practices: Following best practices, such as avoiding sudden changes in flow rate, can help prevent process contamination and prolong valve life.

9) Aging or Fatigue Failure of Valve Components

Aging or fatigue failure of valve components can have a significant impact on industrial control valves, leading to the following issues:

• Reduced efficiency: Worn-out or degraded components can cause control valves to operate less efficiently, leading to increased energy costs and decreased production.
• Increased downtime: Aging or fatigued components can result in more frequent breakdowns, causing increased downtime and maintenance costs.
• Decreased reliability: Over time, components can weaken and fail, reducing the reliability of control valves and increasing the risk of failure.
• Leakage: Aging or fatigued components can result in leaks, causing loss of process fluid and potentially causing harm to the environment.
• Decreased safety: Worn-out or degraded components can increase the risk of valve failure, which can have profound safety implications in some industrial processes.

It is essential to regularly inspect and maintain control valves to detect and replace aging or fatigued components to prevent these types of failures and maintain efficient, reliable, and safe operation.

Miller Energy, Inc.
800-631-5454
https://millerenergy.com