“Regular inspection of your boiler risers is imperative to keeping the system corrosion-free.”

The Importance of Risers

In order for boilers to function properly, the circulation of water and steam must be effectively carried out. When the flow of water and steam is blocked, overheating occurs, resulting in a damaged boiler and operational failure. Risers are tubes that connect the mud (lower drum) to the steam (upper drum). As the water heats, the risers carry water and steam to the steam drum, where an outlet is present.

In addition to blockage, ineffective riser circulation can also cause the formation of scale in the boiler. These unwanted deposits are detrimental to the efficiency of boilers as they block or decrease the rate of heat transfer. The build-up of such deposits will call for immediate repair, and possibly even riser replacement, which can be costly for commercial boilers.

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Apart from these, risers work to prevent deformation or wrinkles in its structure by providing the passageway for heated water. Temperature is at its highest here, and so the initial stages of heating are done here. However, it is important to note that the ratio of the steam and water must be appropriate to avoid overheating. The quantity of riser tubes must then be enough to ensure that the right temperature is maintained inside the pipes.

Risers and Corrosion

Another problem you might stumble upon with your risers is corrosion. When the heated water inside the boiler is exposed to dissolved gases such as oxygen or carbon dioxide, corrosion occurs in the used metal. This can be caused by several factors, from structural fatigue, to low pH level in the water. Corroded risers greatly decrease the life expectancy of the boiler, as well as compromise the quality and safety of its product.

Regular inspection of your boiler risers is imperative to keeping the system corrosion-free. The best time to have your boiler risers inspected is the spring months during the off-season, when you can easily set a schedule for riser replacement or repair. During this time, customers can easily find what they need without the added stresses that come with heating season.

To schedule an inspection with American Boiler Company during the off-season, contact us now at 973.923.1999.