What should be done when plugging a defective boiler tube?

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When plugging a defective boiler tube, the recommended course of action is to use cone-shaped plugs for both ends of the tube and weld them securely in place. This process effectively isolates the section of the tube that is damaged, preventing the flow of water or steam through it and maintaining the integrity of the rest of the boiler system.

Using plugs that are welded in place provides a strong and durable seal, which is crucial in high-pressure environments typical of boiler operation. This method ensures that there are no leaks that could potentially lead to greater issues, such as reduced efficiency, increased risk of boiler failure, or unsafe operating conditions.

Other methods, such as leaving the tube open or simply abandoning it without any plugs, could lead to unsafe conditions by allowing water or steam to escape, which may affect the boiler's operation and safety. Cutting out the entire section of the tube might also be more involved and unnecessary if plugging is a viable option. Thus, sealing the defective section with welded plugs is the most effective and safe approach.

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