Water tube boilers and fire tube boilers are two types of boilers. Due to the differences in the internal structure of these two types of boilers, the applicable places and industries also have certain differences. For specific industries where water tube boilers and fire tube boilers are suitable, listen to the suggestions of Zhengzhou Fangkuai Boiler Factory.
Water tube and fire tube boiler are defined by the difference of the medium in the tube. The water tube boiler is the pipe passing water, and the water in the pipe is heated by the external flue gas convection/radiation heat exchange. The fire tube boiler is the pipe passing the flue gas, letting The flue gas heats the medium outside the tube to realize heat exchange. The fire tube boiler has a simple structure, large water and steam volume, good adaptability to load changes, and lower water quality requirements than water tube boilers. It is mostly used in the production process of small enterprises and domestic heating. . The heating surface of the water tube boiler is convenient to arrange, and the heat transfer performance is good. It can be used in the working condition of large capacity and high parameters in structure. But it has higher requirements for water quality and operation level. In order to help everyone understand, Zhengzhou Fangkuai Boiler Plant summarized the following points:
(1) The pressure of water tube boiler has a wide range of adaptability, which can break through the pressure limit and meet the steam supply requirements of 2.5MPa or more. Fire tube boilers are limited by material wall thickness and pressure, and are used for pressures below 2.5MPa;
(2) Fire tube boilers are shell-type boilers. Due to the limitations of the current equipment and tooling of various boiler manufacturers, it is more difficult to manufacture a fire tube boiler that is too large, usually below 35t/h. The water tube structure boiler can realize the large-scale boiler, and the boiler above 35t/h usually adopts the water tube structure; (3) The fire tube boiler has the characteristics of compact structure. Under the same output, the appearance and equipment weight are lower than the fire tube boiler. Due to the larger volume of the water tube boiler, there is more space for arranging the superheater, so the water tube boiler occupies a relatively large boiler room.
Recently, Zhengzhou Fangkuai Boiler Sales Co., Ltd. traveled to Dhaka, the capital of Bangladesh, to attend the Bangladesh International Textile, Knitwear & Garment Industry Exhibition (BTKG 2026). It showcased industrial thermal equipment and system solutions adapted to the whole process of textile printing and dyeing, actively expanding the South Asian market.
Bangladesh is an important global producer and exporter of textiles and garments. As a pillar local industry, the textile sector has long-term and strong demand for high-efficiency, stable and energy-saving industrial boilers and thermal equipment, with broad market potential. This exhibition participation is an important measure for Zhengzhou Fangkuai Boiler Sales Co., Ltd. to advance its internationalization strategy and further explore overseas markets.
Relying on its technological accumulation and manufacturing advantages in the field of thermal energy equipment, the company provides targeted thermal energy solutions for local textile, printing and dyeing, garment manufacturing and other industries, helping enterprises improve production efficiency and reduce operating costs. In the future, Zhengzhou Fangkuai Boiler Sales Co., Ltd. will continue to focus on overseas market demands, continuously optimize its product and service system, facilitate the high-quality development of the global textile industry with professional and reliable products, and steadily enhance the brand’s competitiveness and influence in overseas markets.
Trust stems from quality
At the beginning of the new year, Fangkuai Boiler and a leading domestic new energy company have reached another important cooperation, successfully signing an order for a total of 500 steam tons.
