What is the correct method to ensure tight bolting of a flange?

The method of cross bolting is utilized to ensure that a flange is tightly secured. This technique involves tightening bolts in a crisscross pattern, which helps to evenly distribute the clamping force across the flange joint. By following this pattern, you minimize the risk of warping the flange or creating uneven stresses, which can lead to leaks or failures in the connection.

Using a cross bolt method allows for a more uniform compression on the gasket between the flanges, ensuring that it sits evenly and seals effectively. As the bolts are tightened this way, the pressure is applied in a manner that reduces the likelihood of any single point becoming over-torqued, which could otherwise compromise the integrity of the flange connection.

This practice is particularly important in plumbing applications, where maintaining reliable seals in the piping system is crucial for preventing leaks and ensuring system performance. Adopting cross bolting is recognized as best practice for flange assembly in various engineering fields, including plumbing, due to its efficiency in achieving a secure and tight fit.