What is the required pH limit for shore steam?

The correct pH limit for shore steam is maintained within the range of 8.0 to 9.5 pH units. This range is essential because it helps to prevent corrosion in the piping and boiler systems by promoting an alkaline environment, which reduces the solubility of corrosive agents such as oxygen and carbon dioxide in the water. Maintaining this pH range ensures that the steam produced is less likely to cause damage to machinery and equipment and supports efficient operation while minimizing maintenance issues.

Lower pH levels can lead to increased acidity, which accelerates corrosion and can harm the integrity of the system components. Conversely, if the pH is excessively high, it can lead to scaling and deposits that could also impair performance. Thus, the specified pH range of 8.0-9.5 is optimal for operational effectiveness and equipment longevity.