What type of connection is commonly used for joining sections of boilers?

The most appropriate type of connection commonly used for joining sections of boilers is welded connections. Welding provides a strong and permanent bond that can withstand the high pressures and temperatures typically found in boiler operations. This type of connection ensures a continuous and robust structure, which is crucial for maintaining the integrity and safety of the boiler system.

Welded connections are advantageous because they create a seamless joint, reducing the risk of leaks and allowing for the effective transfer of heat. Moreover, they can be performed using various materials and types of welding techniques, making them versatile for different boiler designs.

In contrast, threaded connections are more suitable for applications where sections might need to be disassembled, such as valves or piping systems. They can introduce potential weak points and are not ideal for the high-pressure environment of boiler sections. Soldered connections are typically used for smaller diameter pipes and less critical applications, as they do not provide the same level of strength and durability as welding. Clamp connections are generally used for temporary assemblies or where flexibility is needed, but are insufficient for the robust structural requirements of boiler sections.