Seeking Alternatives: A Drop-in Replacement in Response to the Discontinuation of Eclipse Veri-Flame

A Drop-in Replacement in Response to the Discontinuation of Eclipse Veri-Flame

With its reliance on complex machinery and systems, the industrial sector faces significant challenges when products become obsolete. This situation affects the efficiency of operations and poses a dilemma for companies in maintaining and upgrading their equipment. A prime example of such obsolescence is the discontinuation of the Eclipse Veri-Flame Burner Monitoring System in late 2018.

The Eclipse Veri-Flame was a pivotal component in the industrial world, controlling the start-up sequence and monitoring the flame of a single gas, oil, or combination gas/oil burners. It was renowned for its reliability and precision, playing a critical role in ensuring the safe and efficient operation of burners in various industrial applications. The product's popularity was not limited to a particular region but spanned globally, with thousands of installations. This widespread use underscored its importance in the industrial sector, making its obsolescence significant.

The discontinuation of the Eclipse Veri-Flame presented a substantial challenge for industries reliant on this system. Companies faced the daunting task of finding alternatives that could seamlessly integrate into their existing setups without compromising performance or safety. The obsolescence disrupted operations and necessitated a significant investment in time and resources for companies to transition to new systems. This situation is further complicated by the need to ensure that any new system adheres to the stringent safety and regulatory standards paramount in industrial operations.

However, there is a silver lining for those affected by the phase-out of the Eclipse Veri-Flame. Combustion Technology, LLC, based in Vancouver, Washington, offers a drop-in replacement for VERI-FLAME Burner Controls. This replacement promises to deliver the same level of efficiency and reliability that industries have come to expect from the Eclipse Veri-Flame. By providing a solution that can be integrated into existing systems with minimal disruption, Combustion Technology, LLC, helps mitigate the challenges posed by the obsolescence of the Eclipse Veri-Flame.

For industries still grappling with discontinuing the Eclipse Veri-Flame, the availability of a compatible replacement is a significant relief. It offers a way to maintain operational efficiency and safety standards without requiring extensive overhauls or investments. Companies seeking to navigate this transition smoothly are advised to contact Combustion Technology, LLC, to explore their options and ensure a seamless shift to the new system.

While the obsolescence of industrial products like the Eclipse Veri-Flame presents considerable challenges, solutions such as the one offered by Combustion Technology, LLC demonstrate the resilience and adaptability of the industrial sector. By embracing such innovations, companies can continue to operate efficiently and safely, even in the face of technological advancements and product phase-outs.

Combustion Technology, LLC

UL508A Control Panels for Modern Process Heating Systems

UL508A Control Panels for Modern Process Heating Systems

A UL508A control panel is a specific industrial control panel designed and certified according to the UL508A standard set by the Underwriters Laboratories (UL). Here's a detailed explanation:

What is UL508A?

UL508A is a standard set by the Underwriters Laboratories (UL), an independent safety certification organization based in the US. This standard specifically pertains to the safety of industrial control panels. It provides guidelines for designing, constructing, and testing control panels to ensure they meet the necessary safety standards.

What is a UL508A Control Panel?

A UL508A control panel is an industrial control panel built under the requirements of the UL508A standard, meaning it has undergone rigorous testing and inspection to ensure it meets the safety requirements set out in the standard. Such panels will typically bear the UL label, indicating they have been certified by the Underwriters Laboratories.

How is a UL508A Control Panel Used in Industrial Heating and Combustion Applications?

Industrial heating and combustion applications often involve boilers, furnaces, ovens, and kilns. These devices require precise control to maintain safety, efficiency, and product quality. Here's how a UL508A control panel can be used in such applications:
  • Temperature Control: The control panel can regulate the temperature of a furnace, boiler, or oven by adjusting the fuel supply or the operation of heating elements, ensuring that the equipment operates within a safe and desired temperature range.
  • Safety Monitoring: The panel can continuously monitor various safety-related parameters. For instance, it can monitor pressure levels inside a boiler or the oxygen level in a combustion chamber. If any of these parameters fall outside of safe limits, the control panel can automatically sound an alarm or even shut down the equipment.
  • Sequential Control: In many industrial processes, various stages of the operation must occur in a specific sequence. The control panel can ensure that, for example, a specific valve doesn't open unless a particular temperature is achieved.
  • Data Logging: The control panel can record operational data over time, such as temperature profiles, fuel consumption, or emission levels. This data can be crucial for troubleshooting, performance analysis, or compliance with regulatory requirements.
  • Interfacing with Other Systems: UL508A control panels can communicate with other systems in the facility, such as building management systems or emergency shutdown systems, ensuring that the heating or combustion system operates harmoniously with the broader environment.
  • User Interface: Modern control panels often come with intuitive interfaces that allow operators to set parameters, view current operational data, or respond to alarms. These interfaces can be physical (like buttons or touchscreens) or digital (accessible via a computer or mobile device).

A UL508A control panel provides the intelligence and safety oversight needed to operate industrial heating and combustion equipment efficiently and safely. Its certification ensures that the panel is designed and constructed to handle the rigorous demands of industrial environments, providing peace of mind to facility operators and owners.

Combustion Technology, LLC

Revolutionizing Industrial Heating: The Selas Superflame™ High Velocity Low NOx Burner

The Next Generation in High Velocity, Low NOx Burners

A high velocity burner is an industrial combustion device that produces a high-velocity flame. This type of burner is particularly beneficial in applications requiring higher heat transfer rates or where the flame needs to penetrate deeply into the process media. The high velocity ensures better mixing of the fuel and air, leading to efficient combustion and uniform heating.

Some key features of high velocity burners include:

  1. Improved Heat Transfer: Due to the high velocity of the flame, there is an increased heat transfer rate from the flame to the material, leading to quicker heating cycles and improved process efficiency.
  2. Penetration: The forceful nature of the flame allows it to penetrate deeply into materials or cavities, ensuring uniform heating, which is particularly useful in processes like forging or certain types of melting applications.
  3. Reduced Scale Formation: In metal heating processes, the formation of scale (an oxide layer) on the metal surface is a concern. The high-velocity flame can reduce the formation of this scale, leading to better product quality.
  4. Efficient Combustion: The combustion process in a high-velocity burner is often more complete due to better mixing of fuel and air, meaning fewer unburned hydrocarbons and lower emissions.

High velocity burners are used in various industrial applications, including steel reheating, forging, glass melting, and other processes where deep heat penetration or rapid heating is beneficial.

Selas, headquartered in Streetboro, Ohio, manufactures industrial burners and serves the industrial thermal processing industry by offering various innovative and reliable gas burners, combustion systems, and thermal components.  Their new product, the Superflame™ Low NOx Medium & High Velocity Burner, is constructed with an outer tube from advanced silicon carbide. The inner firing tube consists of stainless steel alloy. The high-velocity burner uses two-stage combustion to achieve low NOx emissions. Specifically designed nozzles facilitate excellent NOx-inhibiting combustion in the first stage. The second stage sees combustion products exiting at speeds exceeding 275fps (83mps) for medium velocity and 400fps (122mps) for high velocity.

The Superflame™generates heat in dense loads and circulates it within the furnace, ensuring faster and more consistent heating. Superflame's medium and high-velocity burners operate effectively with either ambient or preheated combustion air, reaching temperatures up to 700°F (371°C). They also feature durable, lightweight, and self-supporting SiC firing tubes. These burners fit perfectly in brick and fiber wall furnaces and attach easily to the furnace, are compatible with ultraviolet detectors, and most models also accommodate a flame rod. The inclusion of a direct spark offers more flexibility in control system design.

For more information about the Superflame™in the Pacific Northwest, contact Combustion Technology, LLC. Call them at 800-327-1831 or visit

The Perfect Fit: Siemens Combustion Controls HFV Series Control Valves for Boiler Applications

The Perfect Fit: Siemens Combustion Controls HFV Series Control Valves for Boiler Applications

Modulating control valves plays a crucial role in managing the flow of feedwater and steam in a combustion boiler system. These valves help maintain the desired levels of water and steam within the boiler by continuously adjusting the flow rates according to the system's needs.
  • Feedwater Flow Control: The feedwater, which is water fed into the boiler for conversion into steam, must be carefully controlled. A modulating control valve regulates feedwater flow into the boiler, which is critical because the amount of feedwater entering the boiler should match the steam demand from the process. If the feedwater supply is too low, the boiler can run dry, causing damage to the boiler tubes and other components. Conversely, the feedwater supply is too high, which can cause overfilling and unnecessary pressure on the boiler.
  • Steam Flow Control: The steam generated in the boiler provides various processes like heating, power generation, etc. The modulating control valve regulates the steam flow from the boiler to the process. It adjusts the steam flow rate according to the process requirements, ensuring the process receives the correct amount of steam at the required pressure and temperature.
The operation of modulating control valves is typically automated, controlled by a control system that continuously monitors various parameters like boiler pressure, steam demand, water level, etc., and adjusts the valve position accordingly, ensuring optimal boiler operation, energy efficiency, and safety.

In summary, modulating control valves plays a crucial role in regulating the flow of feedwater into the combustion boiler and the steam flow from the boiler to the process. Proper operation of these valves is essential for the efficient and safe operation of the boiler system.

The Siemens Combustion Controls HFV series control valves are ideally suited for applications that involve the throttling and shutting off water or steam flow in boiler feedwater or steam flow systems. These valves operate using a Siemens SKB/C/D electronic actuator. The HFV control valves are available in a variety of sizes, ranging from 1/2" to 2" NPT (National Pipe Thread) and 1/2" to 4" flanged, with pressure ratings of either 150# or 300#.

HFV Series Control Valve Features

  • Up to 150 psi differential across the valve when modulating.
  • High close-off pressure.
  • Stainless steel body, stem, and plug.
  • Linear or equal percentage flow characteristic.
  • ANSI Class IV shutoff.
  • Fail closed.
Combustion Technology, LLC

Serving the Pacific Northwest with Superior Process Heating Products and Services: Combustion Technology

With over 30 years in the industry, Combustion Technology, LLC specializes in providing comprehensive combustion and process heating applications solutions. Our product range includes everything from discrete components like temperature controls, thermocouples, gas pressure regulators, and flow meters to fully integrated industrial burner systems.

Our team of experts stands ready to assist with your most challenging applications. We support the entire lifecycle of your process heating system, recommending optimal products for the best return on investment and offering immediate access to a wide selection of locally-stocked replacement parts.

  • When you partner with Combustion Technology, you can expect the following:
  • Deep expertise in process heating and combustion
  • An emphasis on minimizing the total cost of ownership
  • Access to top-tier product lines
  • Smart sales support
  • Prompt, efficient, and courteous customer service
  • Available technical phone support
  • On-site troubleshooting and commissioning

As a seasoned supplier-partner in thermal processing systems and burners, our wide range of combustion equipment and expertise in instrumentation, valves, and control systems sets us apart in the industry.

The NORVAL Pressure Regulator by Pietro Fiorentini

The NORVAL Pressure Regulator by Pietro Fiorentini

The NORVAL is a self-actuated, spring-loaded pressure regulator designed for medium and low-pressure applications downstream. It is adept at handling gaseous, non-corrosive fluids as long as they've been pre-filtered.

The NORVAL responds rapidly to shifting operational conditions thanks to its balanced valve design. This feature renders it particularly useful in situations like serving ON-OFF burners and other industrial processes requiring swift flow rate adjustments.

One of the key advantages of the NORVAL regulator is its impressive regulation accuracy, even in the face of considerable changes in upstream pressure and flow rate, making it an ideal choice for natural gas gate stations and a range of industrial and commercial applications.

In its basic version, the NORVAL regulator categorizes it as a "Fail to Open" type, meaning if it fails, it does so in the open state. The NORVAL sports a top-entry design, conferring various management benefits, including the ability to carry out comprehensive maintenance without disconnecting it from the piping network.

  • Simple Installation
  • 250:1 Turndown: Allows for wider applications
  • Constant Outlet Pressure, despite varying inlet pressures
  • High Accuracy
  • Balanced Valve Design: Provides quick response to varying operating conditions 
  • Over Pressure Protection: Optional bolt on slam shut
The NORVAL regulator is crafted with an emphasis on modularity, facilitating the inclusion of alternative devices and additional accessories within its basic structure. Furthermore, these additions can be made later without altering the current piping connections. A unique add-on is the slam-shut, a safety accessory that cuts off the gas flow when it detects abnormal pressure conditions, compared to the set pressure switch point.

Two model variants, SN91 and SN92, are available, and the precision class of the block device can reach up to AG 2.5. The slam-shut device comes with an optional manual tripping button for localized operation. The slam-shut device needs to be manually reset for safety purposes, and a bypass device is incorporated within the valve to simplify this process.

Furthermore, the slam-shut device can be equipped with either pneumatic or electromagnetic attachments for remote operation. It can also incorporate sensors such as micro-switches for remote tripping signal transmission.

For more information, contact:

Combustion Technology, LLC

The Crucial Role of Industrial Combustion Experts in Heating Applications

The Crucial Role of Industrial Combustion Experts in Heating Applications


The efficiency and safety of industrial heating applications directly impact the productivity and sustainability of various industries. Burners, controls, valves, and safety systems are integral components that ensure the optimal operation of these heating applications. In this regard, industrial combustion experts play a vital role in selecting, designing, installing, and maintaining these systems. This article explores the importance of industrial combustion experts in successfully applying burners, controls, valves, and safety systems in industrial heating processes.

Burners and Combustion Systems

Industrial combustion experts are well-versed in designing and selecting burners and combustion systems. Their expertise allows them to analyze the specific requirements of each application and recommend the most appropriate burner type, fuel, and combustion technology, ensuring that the heating process achieves maximum efficiency, reduces fuel consumption, and minimizes the emission of harmful pollutants. Combustion experts also ensure burners are correctly integrated with other system components, such as controls and valves, to maintain stable and efficient operation.

Controls and Automation

Integrating advanced control systems in industrial heating applications is essential for ensuring precise temperature control, energy efficiency, and process consistency. Industrial combustion experts deeply understand various control systems, ranging from simple thermostatic controls to complex programmable logic controllers (PLCs) and distributed control systems (DCS). They can design and implement customized control strategies that are tailored to the specific needs of each industrial heating application, ensuring optimal performance and minimal energy waste.

Valves and Flow Control

Proper selection, sizing, and installation of valves and flow control devices are critical for maintaining safety and efficiency in industrial heating applications. Industrial combustion experts have extensive knowledge of the different types of valves, actuators, and flow control devices available in the market. They can determine the most suitable valve type, size, and material based on operating pressure, temperature, and fluid properties. Additionally, these experts can design and implement proper valve automation and control strategies to ensure smooth operation and prevent potentially hazardous situations.

Safety Systems and Regulations

Safety is a top priority in industrial heating applications. Industrial combustion experts are well-versed in the relevant safety regulations and industry standards that govern the design, installation, and operation of heating systems. They can ensure that all necessary safety devices, such as flame detectors, gas pressure switches, and safety shut-off valves, are integrated into the system to prevent accidents and protect personnel and equipment. Moreover, these experts can provide training and guidance to plant operators, ensuring they are competent in handling the equipment and adhering to safety procedures.

Maintenance and Troubleshooting

Regular maintenance and prompt troubleshooting are essential for industrial heating applications' longevity and reliable performance. Industrial combustion experts can develop and implement comprehensive maintenance programs to prevent equipment failure, optimize system performance, and reduce downtime. They can also provide on-site or remote support in case of unexpected issues or breakdowns, using their extensive knowledge and experience to diagnose and resolve problems quickly and effectively.


Industrial combustion experts are indispensable in successfully applying burners, controls, valves, and safety systems in industrial heating applications. Their expertise ensures the system design, installation, and maintenance in a manner that optimizes efficiency, safety, and sustainability. By partnering with experienced combustion experts, industries can significantly improve their heating processes, ultimately leading to enhanced productivity and competitiveness in the market.

Combustion Technology, LLC

Short Combustion Burner Lead Times

Short Combustion Burner Lead Times

Supply chain shortages pose significant challenges to the industrial combustion burner industry, impacting costs, production timelines, operational efficiency, and product quality. In response, businesses must develop robust strategies to mitigate these risks, such as diversifying their supplier base, maintaining strategic inventory levels, and investing in advanced technologies to improve supply chain visibility and resilience. By proactively addressing these challenges, companies can better navigate supply chain uncertainties and maintain their competitive edge in the market.

Short delivery times for industrial combustion burners are crucial to maintaining business operations, enhancing efficiency, ensuring safety, and remaining competitive in today's dynamic market. They help minimize downtime, improve inventory management, and support environmental compliance, ultimately contributing to a company's success.

For more information, contact:

Combustion Technology, LLC

Medium to Low Pressure Gas Regulators

Medium to Low Pressure Gas Regulators

Gas pressure regulators are essential in medium and low-pressure natural gas combustion systems. They control and maintain a consistent gas pressure, ensuring the safe and efficient operation of the combustion process. In medium and low-pressure natural gas systems, these regulators reduce the high-pressure gas from the main supply lines to a safe and stable pressure suitable for the combustion appliances or equipment.

Here's a detailed explanation of the function of gas pressure regulators in medium and low-pressure natural gas combustion systems:

  1. Pressure reduction: The primary function of a gas pressure regulator is to reduce the incoming high-pressure gas to a lower, more manageable pressure. The regulator achieves this by employing a spring-loaded diaphragm assembly, responding to the pressure changes in the gas flow. The diaphragm helps open or close the regulator's valve, thereby adjusting the gas flow through the regulator and controlling the outlet pressure.
  2. Pressure stability: Gas pressure regulators maintain a consistent outlet pressure despite gas supply or demand fluctuations. Pressure stability is crucial for the safe and efficient operation of combustion systems, as unstable pressure can cause incomplete combustion, leading to potentially hazardous situations. The regulator's diaphragm and valve assembly work together to balance the forces exerted by the incoming gas pressure, the spring, and the outlet pressure, ensuring a stable and consistent pressure output.
  3. Overpressure protection: In the event of a malfunction or failure within the gas supply system, the pressure regulator may encounter abnormally high gas pressure. Most regulators are equipped with built-in overpressure protection mechanisms to prevent damage to downstream equipment or appliances, which may include pressure relief valves or vents that allow excess pressure to escape, thus protecting the downstream equipment.
  4. Safety shut-off: Some gas pressure regulators feature an integrated safety shut-off mechanism. This feature automatically shuts off the gas flow in case the outlet pressure goes beyond acceptable limits, ensuring the safety of the combustion system and avoiding potential damage or hazards.
  5. Pressure compensation: In some cases, gas pressure regulators are also responsible for compensating for pressure fluctuations resulting from gas temperature or altitude changes. These regulators can maintain a consistent outlet pressure under varying environmental conditions by incorporating temperature or altitude compensation mechanisms.

In summary, gas pressure regulators play a crucial role in medium and low-pressure natural gas combustion systems by reducing and stabilizing the gas pressure, providing overpressure protection, ensuring safety shut-off, and compensating for pressure fluctuations due to temperature or altitude changes. These functions are vital for the safe and efficient operation of combustion appliances and equipment and the prevention of potential hazards.

PF Cirval Medium to Low Pressure Gas Regulators

PF Cirval medium to low pressure gas regulators are available in two sizes: the Cirval 200 with an 8-inch head and the Cirval 300 with a 12-inch head. Designed by Pietro Fiorentini, the Cirval regulator features a diaphragm and a setting spring that control a balanced valve cartridge. This regulator is used in medium and low-pressure natural gas distribution systems and commercial and industrial applications. It is suitable for use with pre-filtered, non-corrosive gases. In compliance with the European Standard EN 334, the PF Cirval classifies as a fail-open regulator.

Designed according to ANSI B109.4 and CSA 6.18 standards, the Cirval regulator operates in a fail-open mode as specified by EN 334. The leakage class of this regulator is bubble-tight, which is better than Class VIII as per ANSI/FCI 70-3.

For more information, contact:

Combustion Technology, LLC

What Are Immersion Tube Burners?

What Are Immersion Tube Burners?

Immersion tube burners are industrial burners that are used in process heating applications, such as boilers and heat exchangers. They are named "immersion" burners because the combustion chamber of the burner is located inside a metal tube, which is immersed into the fluid being heated.

In these burners, a fuel source, such as natural gas or propane, is mixed with air and ignited inside the tube. The heat from the combustion process transfers to the fluid, which is being heated, through the metal tube walls. The heat transfer rate can be controlled by adjusting the flow rate of the fuel and air mixture into the tube.

Immersion tube burners are used in a variety of industrial processes, such as heating water for steam generation, heating liquids for chemical processes, and heating gases for drying or other industrial processes. They are preferred in many applications because of their high thermal efficiency, ease of installation and maintenance, and precise temperature control.

Overall, immersion tube burners are a cost-effective and reliable solution for many industrial process heating applications, providing precise temperature control and efficient heat transfer.

Combustion Technology, LLC partners with Selas, the TFR Packaged Immersion Tube Burner manufacturer. The TFR is a pre-packaged burner system for liquid tanks with small bore (2.5" to 8" diameter) immersion tubes. TFR packages, when used with natural gas or propane, are intended to create high-fire thermal inputs up to 3.5 MM Btu/hr. A powerful, high-velocity flame wipes the tube's surface, encouraging up to 80% system efficiency. Firing rates can be increased with bigger capacity, external combustion air blowers, and induced draft exhaust fans.

Combustion Technology, LLC

Combustion Efficiency in Large Scale Hemp Drying Applications

Combustion Efficiency in Large Scale Hemp Drying Applications

Efficient fuel combustion plays a critical role in large-scale hemp drying applications as it allows for the safe and efficient drying of the hemp plant material. The hemp material is often quite moist after it has been harvested, and it must be dried before it can be processed for various industrial and consumer applications.

One way to dry the hemp material is by using a large-scale dryer, which typically burns a fuel, such as natural gas, propane, or oil, to generate heat. The heat is then used to dry the hemp material. In order for the drying process to be efficient, the fuel must be burned in a controlled and consistent manner. This is where efficient fuel combustion comes into play.

Efficient fuel combustion ensures that the fuel is being burned in the most optimal way possible. This means that the fuel is being burned at the correct temperature, with the correct amount of oxygen, and in the correct mixture with other fuels (if applicable). This allows for the maximum amount of heat to be generated from a given amount of fuel, and thus allows for the hemp to be dried in the most efficient manner possible.

To achieve efficient fuel combustion in large scale hemp drying applications, several factors must be considered and controlled. These include:
  • Fuel type and quality: The type and quality of fuel used can have a significant impact on the efficiency of combustion. Using a higher quality fuel can lead to better combustion efficiency, and thus, less fuel consumption.
  • Air/Oxygen supply: Adequate air supply is essential for efficient fuel combustion. Insufficient air supply can lead to incomplete combustion, which can lead to decreased efficiency, increased emissions, and even fire hazards.
  • Combustion chamber design: The design of the combustion chamber can also play a role in combustion efficiency. A well-designed chamber can help to ensure that the fuel is being burned in the most optimal way possible.
  • Temperature control: Proper temperature control can also help to ensure efficient fuel combustion. Burning the fuel at too low a temperature can lead to incomplete combustion, while burning it at too high a temperature can lead to increased emissions.
Overall, efficient fuel combustion is critical in large-scale hemp drying applications as it allows for the safe, efficient, and cost-effective drying of the hemp plant material. Ensuring that all the factors involved in combustion are optimized and well-controlled is key to the efficient combustion process.

For expert advice on process heating and control systems specifically for hemp oil processing and hemp drying, contact Combustion Technology, LLC. Their experience in combustion optimization, thermal profiling, and temperature measurement is premier. They have equipment and instrumentation ready to provide the high-level performance required for the hemp processing industry, such as:
  • Wide turndown burners with precise temperature control. 
  • Modulating gas control valves with .1 of a degree positioning accuracy. 
  • Process controllers and indicators are accurate to .25% of span.
  • 508A listed electrical panels, NFPA 86 compliant
  • Secure digital recording of temperature and other critical variables for contract drying.
Headquartered in the Pacific Northwest, reach them by calling 800-327-1831 or visiting their website at