Radiant Tube and Immersion Tube Burners


In the realm of industrial heating systems, radiant tube and immersion tube burners are two popular choices that cater to different applications and heating requirements. Both play crucial roles in various industries, ranging from metal processing and heat treatment to food production and chemical processing. In this blog post, we will delve into the fundamentals, working principles, and key differences between these two burner types, shedding light on their unique benefits and limitations.

1. Radiant Tube Burners

Radiant tube burners are renowned for their exceptional efficiency and ability to generate high temperatures uniformly. These burners consist of a tube, usually made of stainless steel or ceramic or other heat-resistant materials, which houses the burner elements. The combustion process occurs within the tube, and the hot combustion gases radiate heat onto the target material or object.

Key Features:
– Efficient heat transfer: Radiant tubes provide excellent heat transfer by utilizing the principle of radiation, resulting in uniform and precise heating.
– Temperature control: They offer precise temperature control, making them suitable for applications requiring specific temperature profiles.
– Clean combustion: Radiant tube burners can achieve clean combustion with minimal emissions, making them environmentally friendly.

– Heat treatment of metals: Radiant tubes are commonly used for annealing, tempering, and hardening processes in metalworking industries.
– Industrial furnaces: They are employed in various types of industrial furnaces for consistent and controlled heating of materials.

2. Immersion Tube Burners

In contrast to radiant tube burners, immersion tube burners are submerged directly into the material being heated, such as liquids or molten metals. These burners are typically constructed from materials resistant to the corrosive nature of the molten substances they encounter.

Key Features:
– Rapid heat transfer: Since the burner is immersed in the material, heat transfer is quick and efficient, resulting in faster heating times.
– Versatility: Immersion tube burners are adaptable and can be employed in various applications, including non-metallic materials and fluid heating processes.
– Space efficiency: They are compact and well-suited for applications where space is limited.

– Heating liquids: Industries such as food production and chemical processing benefit from the precise and rapid heating capabilities of immersion tube burners.

In summary, both radiant tube and immersion tube burners are valuable tools in industrial heating applications, each offering distinct advantages depending on the specific requirements of the process. Radiant tube burners excel in precise temperature control and uniform heating, making them ideal for metal heat treatment and industrial furnaces. On the other hand, immersion tube burners are well-suited for rapid heating applications involving liquids or molten materials, providing efficient and versatile heating solutions.

When selecting the appropriate burner type, it is crucial to consider factors such as heating needs, space constraints, and the material being processed.

Here after the link of the Santin’s burners suitable for radiant and immersion tubes: