Overview
A steam air heater, also called a steam heating coil, uses a finned tube bundle with steam inside the tubes. The steam condenses and releases latent heat, which is transferred to the air passing across the fins. Tube circuit and surface area are sized for the steam pressure, air flow and required leaving temperature, with condensate drainage and steam velocity checked in the design.
Features
- Fin types: wound, sleeve-on, embedded and high-frequency welded
- Copper tube with copper fins available for high-pressure steam duty
- Tube circuit and surface area checked for part-load operation
- Condensate drain points set according to the steam circuit and installation
- Connection positions and casing built to the equipment envelope
- Series supply experience on export steam heater projects
Materials and specifications
| Tube material | Copper, stainless steel, carbon steel |
| Fin material | Copper, aluminium, stainless steel |
| Fin type | Wound, sleeve-on, embedded, high-frequency welded |
| Heat source | Saturated steam, superheated steam |
| Heated medium | Air, process gas |
| Construction | Finned tube bundle with casing and inlet / outlet connections |
Typical applications
| Application | Description |
|---|---|
| HVAC and process air heating | Fresh-air and recirculation heating with a stable leaving temperature. |
| Washing and drying equipment | Heating coils built to the duct and machine envelope. |
| Food and agricultural drying | Hot air for continuous drying lines. |
| Textile finishing | Heating for setting and drying processes. |
| Chemical and pharmaceutical | Process heating and drying air. |
Selected deliveries
Export · Russia
High-pressure copper tube, copper fin steam heaters supplied in series for a number of years.
Washing and drying
Steam heating coils supplied in series to a Japanese washing and drying equipment maker.
FAQ
What is the difference between a steam air heater and a steam heating coil?
They are the same equipment under different names. A heating coil usually refers to the finned tube bundle itself, while an air heater describes the complete unit with casing and connections.
Can you build for high steam pressure?
Copper tube bodies have a lower pressure rating than steel. High-pressure designs use thicker-wall tubes and a suitable expansion or brazing process. Send the steam pressure and temperature and we will check the construction.
How is condensate removed?
Drain points are set according to the steam circuit and installation arrangement. We include a drainage recommendation with the selection.
Can it replace an existing coil?
Yes. Send the original drawing or measured dimensions, connection positions and duty, and we will reproduce the interface while checking the thermal performance.