zozen boiler
Home Service FAQs Boiler basics What is grade-A boiler?

What is grade-A boiler?

23 Jul 2021

In the industrial boiler industry, it is generally divided into four grades: A, B, C and D according to the production qualification license grade, among which, when purchasing boilers, users often consider Grade A boiler manufacturers. What is a grade A boiler?

 

The production license scope of Grade A qualification is not limited.

Grade B steam boiler with rated steam pressure less than or equal to 2.5 MPa.

Grade C steam boiler with rated steam pressure less than or equal to 0.8 MPa and rated evaporation less than or equal to 1 ton/hour; Hot water boiler with rated outlet water temperature less than 120 degree Celsius.

Grade D steam boiler with rated steam pressure less than or equal to 0.1 MPa; The rated outlet temperature is less than 120 MW and rated thermal power is less than or equal to 2.8 MW.

Related news View More
  • ZOZEN Boiler in Mongolia: Industrial Heat Projects Across Food, Beverage and District Heating Sectors
    Mongolia's industrial sector has been expanding steadily. Demand for reliable heat supply is growing — particularly in food and beverage manufacturing and urban district heating. Coal is the dominant industrial fuel. The continental climate means heating systems run for long periods each year. At the same time, factories are raising their standards for steam quality, equipment uptime, and emissions compliance. These factors together make boiler selection a more demanding process than it us...
    07 Apr 2026
  • From Beverages to Vodka Production: ZOZEN Circulating Fluidized Bed Boiler Provides Stable Steam for Mongolian Enterprise
    On the beverage and liquor production line, steam is never merely an auxiliary energy source. Whether for beverage heating, beer brewing, or the relevant processes in vodka production, the steam system runs through the entire production flow. For enterprises, the stable operation of the boiler directly affects the workshop rhythm, process connection, and daily management efficiency. Recently, the SHX series circulating fluidized bed boiler provided by ZOZEN Boiler for a Mongolian enterprise&mdas...
    31 Mar 2026
  • Building a Plywood Plant in Africa: How to Choose the Right Heat Source?
    For many manufacturers with mature production experience in China, expanding capacity overseas or building a new factory abroad often starts with one key question: can the local infrastructure and energy supply support long-term operation? This is especially important in Africa. In many countries, raw materials such as timber are readily available, while conventional fuels like natural gas and diesel are often more expensive and less stable in supply. For plywood plants, this creates a practica...
    24 Mar 2026

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity