Industrial Burners

Dunphy’s range of industrial burners is designed to support a variety of applications, from heat and steam systems to process applications and incineration. With capacities ranging from 100 kW to 60 MW, our burners are suitable for all types of gas-fired, steam, and incineration boilers, as well as furnaces.

Since Malcolm Dunphy patented the first axial airflow burner in 1971, we have been at the forefront of energy-efficient combustion technology. Today, our ultra-low NOx burners deliver high-efficiency, low-emission solutions tailored to meet the demands of diverse industrial applications.

Dunphy burners are equipped with advanced controls for optimal performance, energy efficiency, and emissions reduction. They are designed to operate on a wide range of fuel types, including: hydrogen, biogas, natural gas, liquid gases, light fuel oils and heavy fuel oils

What is an industrial burner?

An industrial burner is a heating device that generates and controls a flame for industrial processes. It mixes fuel and air in precise ratios to achieve efficient combustion. Industrial burners are used in applications such as industrial steam boilers, furnaces, and ovens in industries like manufacturing, food processing, and power generation.

How do industrial burners work?

Industrial burner systems work by mixing fuel and air in controlled ratios to produce a stable and efficient flame. A blower or compressor supplies air, while a fuel valve regulates the fuel flow. The mixture ignites through a spark or pilot flame, generating heat for industrial applications like boilers and furnaces.

Burner Range

We offer three types of burners to suit various industrial needs:

Monobloc Axial Airflow Burners

The T-series axial airflow burners are designed for single or multi-fuel use with all liquid and gaseous fuels. These burners are ideal for applications ranging from 100 kW to 14 MW, including:

  • Heat and steam systems for buildings
  • Industrial processes such as manufacturing, drying, brewing, distilling, and dairy operations
  • Waste-to-energy processes
  • Incineration

Duobloc Bespoke Burners

The B-series bespoke burners are tailored for high-output applications of up to 80 MW and are suitable for:

  • Incineration
  • Auxiliary firing for biomass boilers and special fuels
  • Air preheat applications up to 300°C, maintaining body temperatures below 50°C
  • ATEX and SIL-approved applications for hazardous environments

Alternative Bespoke Burners

Our on-site mechanical design studio allows us to create bespoke solutions for specialised industrial applications. These include sluice, start-up, and auxiliary burners for applications including

  • Fast furnace heating
  • Water tube boiler applications
  • Fluidised bed applications
  • Waste recovery processes

Dunphy burners are highly flexible and compatible with a wide range of fuels, including: (link to these sections as in the current site structure)

  • Hydrogen burners, 
  • Renewable fuel burners
  • Biogas burners
  • Industrial gas burners
  • Industrial oil burner
  • Multi fuel burners
  • Air preheat burners
  • Process burners

Core features of Dunphy Burners

Low NOx Combustion

All T-series burners come equipped with low NOx combustion heads as standard, ensuring compliance with emissions regulations.

High Turndown Ratios

Burners achieve up to 12:1 turndown on gas, 4:1 on oil, and 8:1 on oil-fired steam with air atomisation, ensuring efficient operation across varying loads.

Digital Modulation

Fitted as standard, digital modulation ensures high accuracy of control, optimising performance and reducing fuel consumption.

Thorough Testing

Every burner is rigorously tested in our R&D test lab before dispatch, ensuring maximum reliability and performance.

Made in Britain

Designed, manufactured, and assembled at our UK factory, ensuring the highest standards of quality.

Low Noise Operation

The axial airflow design encapsulates the motor and fan within the casting, significantly reducing operational noise levels.

Additional features

While Dunphy burners are often customised for specific applications, we also offer a range of off-the-shelf features that enhance performance and emissions control:

Oxygen Trim

Adjusts the fuel/air ratio to maintain minimal excess oxygen, enabling consistent combustion with oxygen levels of 2-2.5% across the turndown range. This compensates for fluctuations in fuel calorific value, temperature, and pressure.

CO Trim

Continuously reduces air supply, enabling the burner to operate safely at sub-1% oxygen levels, maximising efficiency while preventing CO formation.

Flue Gas Recirculation (FGR)

Achieves ultra-low NOx emissions of less than 30 mg/Nm³ on gas and 100 mg/Nm³ on oil, enhancing environmental compliance.

Multi-Nozzle Head

Allows for dual or triple fuel configurations, enabling the burner to use multiple fuels either simultaneously or independently.

 

Accreditations

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