If the tubes in a boiler are expanded during installation, what will be true?

When tubes in a boiler are expanded during installation, it is a common practice to ensure a secure and tight fit between the tube and the tube sheet. This process typically involves using heat or mechanical means to expand the tube.

As a result of this expansion, the inner diameter of the tube is increased. This increase in the inner diameter allows for a better seating of the tube within the tube sheet, ensuring that it is leak-proof and can withstand the operational pressures and temperatures of the boiler system.

It's important to note that expanding the tube contributes to the structural integrity and efficiency of the boiler. The material of the tube will yield outward under pressure, which decreases any potential gaps that could lead to leakage or failure during the boiler's operation. Thus, understanding the mechanics of tube expansion is crucial for those involved in boiler maintenance and safety.