What does hydrostatic testing assess in a boiler?

Hydrostatic testing is a critical process used to assess the structural integrity of a boiler. This method involves filling the boiler with water and then pressurizing it beyond its normal operating pressure, allowing for the inspection of potential leaks and weaknesses in the boiler's construction. During this test, any deformations, leaks, or weaknesses in seams, welds, and materials can be detected, which is essential for ensuring the safety and reliability of the boiler in operation. Maintaining the structural integrity of boilers is crucial, as it prevents catastrophic failures that could pose significant safety hazards.

When considering the other options, fuel efficiency pertains to how effectively a boiler converts fuel into energy, which is not evaluated through hydrostatic testing. Water quality involves the characteristics of the water used in the boiler, such as its chemical composition, which is significant for operational performance but unrelated to structural assessment. Electrical safety is focused on the electrical components and systems of the boiler, which are not addressed through the hydrostatic testing process. Thus, structural integrity is the key focus of hydrostatic testing in a boiler system.