In the boiler market, according to the difference in capacity, boilers are divided into large, medium, and small, but there is no fixed and clear boundary between them. Therefore, when purchasing boilers, you can directly judge according to your own needs and choose what tonnage industrial boiler equipment to use. In industrial boilers, there are different components such as cylinders, headers, and steam drums. After understanding the functions of these components, the boiler can be operated better, and failures can be solved more quickly.
The sub-cylinder is an accessory of the boiler. It is placed in the boiler room for easy operation. It is used to distribute the steam from the boiler main pipe into several routes for easy adjustment. For example, the sub-cylinder is equipped with three-way branch pipes, one way to the production workshop, one way To the canteen, all the way to the bathroom, in the boiler room, you can conveniently operate the valves of each branch to control.
The header belongs to the pressure part of the boiler body. It is connected to the pressure parts such as the water wall tube and the convection tube in the boiler. The outer diameter is generally less than 325mm. It plays the role of collecting or distributing the circulating water in the boiler. Set the hand hole as an inspection hole, which cannot be accessed by people.
The steam drum or drum (the water heater is called the drum) is the most important pressure part of the boiler. Usually, the boiler is designed with 1 to 3 drums, which are arranged on the upper and lower sides. The upper drum is called the upper drum (the steam boiler is called the steam boiler). There are many accessories in the bag, such as the soda orifice plate, the water distribution pipe, and the top of the steam drum. There should be multiple pipe seats to connect the safety valve, pressure gauge, water outlet pipe, etc.), the lower drum and the upper There are boiler convection pipes between the boiler drums, the number is very large, so the diameter of the boiler drum is much larger than the diameter of the header, so many holes are drilled in the drum, and people can enter for maintenance. Some hot water boilers need to be inside the drum. Arrange several partitions and divide into several water chambers. The steam drum or drum is the most important pressure part of the boiler.
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.






