Is it possible to roll a new gasket over an exchanger tube sheet to avoid pulling the entire bundle out?

Rolling a new gasket over an exchanger tube sheet can be an effective method to avoid the time-consuming and labor-intensive process of pulling the entire bundle out, but certain conditions must apply. When a tube sheet is not too thick, it allows for sufficient flexibility and ease in rolling the new gasket into place, ensuring that it can conform properly to the surface without damaging the tubes or compromising the integrity of the heat exchanger.

If the tube sheet is excessively thick, the risk of damaging the existing setup increases, making it impractical to roll in the new gasket. The thickness can impede the movement required to achieve a proper seal when introducing the new gasket material. Therefore, the ability to roll the gasket largely depends on the thickness of the tube sheet, confirming that option B is the most accurate in context.