Product Details
Product Overview:
Our company manufactures duct-type heaters, also known as air‑duct or shell‑and‑tube electric heaters. These devices are installed within ventilation ducts or fluid‑transport pipelines and use electrical energy as the heat source to heat the gases or liquids flowing through them. At their core, they achieve rapid temperature rise of the medium by means of finned electric heating tubes.
These heaters feature a compact design and high heating efficiency, making them suitable for rectangular ducts, circular pipes, or industrial fluid lines. They can heat gaseous media such as air and flue gases, as well as liquid media like water and oil, while offering precise temperature control, flexible installation, and reliable safety. They are widely used in HVAC systems, drying processes, industrial fluid heating, exhaust gas treatment, and other applications.
Product specification and model reference:
Tubular heaters are typically categorized by heating medium, power/flow rate, and connection size. Gas‑type and liquid‑type models have significantly different specifications; the following table provides a reference for mainstream configurations:
| Specification Type |
Heating power range ( kW) |
Compatible medium / Traffic |
Typical Operating Conditions and Parameters |
Main application scenarios |
| Small gas pipeline heater |
3~30 |
Air volume 500~10,000 m³/h |
Supply air temperature ≤80℃, voltage 220V/380V |
Fresh-air system heat supplementation, small-scale drying equipment, residential heating |
| Medium-sized gas pipeline heater |
30~120 |
Air volume 10,000~50,000 m³/h |
Supply air temperature ≤150℃, voltage 380V |
Industrial plant heating, spray‑painting and baking lines, and exhaust gas pretreatment |
| Large gas pipeline heater |
120~300+ |
Air volume 50,000 m³/h and above |
Supply air temperature ≤250℃, voltage 380V |
Large-scale drying equipment, industrial exhaust gas heating, high-temperature process air supply |
| Liquid pipeline heater |
5~100 |
Traffic 1~50 m³/h |
Medium temperature ≤150℃, pressure ≤1.6MPa |
Circulating water heating, oil preheating, and constant-temperature control of process fluids |
Note: Model designations typically incorporate power rating, interface size, and media type; for example, “GD-60/Φ300” denotes a gas‑pipeline heater with 60 kW output, designed to fit circular ducts with a diameter of Φ300 mm. Material options include carbon steel with powder coating or stainless steel, and corrosion‑resistant models can be customized to suit the corrosivity of the medium.
Scope of Product Use:
Tubular heaters are suitable for a wide range of applications, with key areas of use including:
HVAC and Fresh Air Systems:
Air preheating and secondary heating units for central air-conditioning systems and fresh-air handling units, used to heat incoming fresh air in winter and prevent direct exposure to cold drafts; auxiliary heating equipment for shopping malls, office buildings, and hotels, enhancing indoor comfort.
Industrial Drying and Process Heating:
Drying and air‑supply systems for food processing, wood products, hardware, and coating production lines provide constant‑temperature hot air; process‑heating and air‑supply in the textile and dyeing industries ensure stable ambient temperatures; and preheating of process media in the plastics and rubber industries.
Waste gas treatment and environmental protection field:
In exhaust gas treatment systems, it is used to heat and raise the temperature of exhaust gases, meeting the process requirements of subsequent catalytic combustion, desulfurization, denitrification, and other operations; it also provides preheating for waste incineration and industrial exhaust gases, thereby reducing overall system energy consumption.
Fluid Heating and Special Operating Conditions:
Heating and temperature control of industrial circulating water and heat-transfer oil; defrosting and freeze‑prevention air supply in cold storage facilities and low‑temperature warehouses; air heating in livestock sheds and greenhouse structures to maintain optimal growing temperatures for plants and animals; pipeline tracing and freeze‑protection insulation, among other applications.
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Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
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