We need a 12 t/h heavy fuel oil steam boiler, and the fuel viscosity is 150-160 cST. What should be checked before the project is confirmed?

When the fuel viscosity is 150-160 cST, the project should be reviewed as a full fuel-handling system, not just a boiler body. For a 12 t/h heavy fuel oil steam boiler, ZOZEN Boiler typically checks the fuel source, storage temperature, transfer equipment, burner-side heating, filtration, and atomization conditions before confirming the design. The goal is to make sure the fuel can enter the burner in a stable and usable state.

The first item is fuel preparation. Heavy fuel oil at 150-160 cST normally needs heating before it reaches the burner. That means the storage tank, day tank, piping, pump set, and filter arrangement all need to work together. If the oil is not heated enough, the burner cannot atomize it properly. If the oil is overheated or handled without control, the project may face safety and maintenance issues. This is why fuel temperature and viscosity should be reviewed as a pair.

The second item is operating stability. A 12 t/h boiler is often used for continuous production, so the burner and the control system need to respond smoothly when the load changes. ZOZEN Boiler pays attention to the start-up sequence, air supply, fuel pressure, flame monitoring, and shutdown protection. These points become more important when the fuel is thick and the plant runs for long hours. Stable combustion is not only about the burner itself; it also depends on how the fuel is delivered and regulated.

The third item is maintenance access. Heavy fuel oil can leave deposits if the spray quality is not right or if the fuel temperature drifts away from the target range. Filters, heaters, pumps, and burner nozzles should therefore be arranged so they can be checked and cleaned without long downtime. If the plant plans to use 150-160 cST fuel, it is better to review the boiler room layout and maintenance routine before purchase, not after installation.

In short, a 12 t/h heavy fuel oil steam boiler for 150-160 cST fuel should be confirmed only after the fuel analysis, boiler load, and site layout are clear. That is the safest way to make sure the burner, fuel system, and control logic are matched to the project.