Under what circumstances should sealed welding not be used?
Thread Content
When tapered pipe threads are used, in the presence of highly corrosive media, sealing welding must not be applied at the threaded connection; otherwise, leaks can lead to serious consequences. How should this sentence be understood? Isn’t sealed welding safer?
Welding at threaded connections is very difficult, and porosity often occurs. So it is generally used for butt welding or socket welding
The strength of the welds obtained through seal welding is not high, and using threaded connections in combination with seal welding does not guarantee leak-free performance; therefore, threaded connections combined with seal welding are strictly prohibited in environments with highly corrosive media