What is the correct procedure for adding a new tube to a water tube boiler?

The correct procedure for adding a new tube to a water tube boiler involves rolling and flaring the tube. This method is essential for ensuring a proper and secure fit between the new tube and the existing structure of the boiler.

When a new tube is added to a water tube boiler, the rolling process typically involves mechanically rolling the outside of the tube against the tube sheet to create a tight and leak-proof connection. This helps to ensure that the tube is securely held in place and can withstand the high pressures and temperatures typical of boiler operations.

The flaring of the tube includes slightly expanding the ends of the tube to provide additional contact surface area and improve the seal. This flaring action enhances the integrity of the connection and contributes to the overall efficiency and safety of the boiler.

This method is favored in boiler maintenance and repair because it effectively addresses both the mechanical and thermal requirements of the system, ensuring that the new tube can handle the operational stresses and allow for safe boiler performance.