You should know that different system, different site conditions, in terms of online leak sealing right there is a difference between methods and technology, and must be good choose appropriate methods and techniques, to ensure good patch processing, guaranteed to fully solve the leak problem. Such as some method for leakage, pressure welding plugging method requires a short tube can we completely solve the leak problem.

　　Short pipe pressure welding leak is commonly used method of sealing of pressure welding, want to know more kind of situation is in the pipeline leakage defects of pressure gauge, discharge guide spray pipe and other lead to fracture or weld pipe root of sand holes, cracks caused by the leakage and the leakage state is often characterized by medium outward direct injection, vertical injection pressure and horizontal smaller accordingly. According to this characteristic, can be in the original broken tube and welding a short tube slightly larger in diameter, then in good welding a short tube with the valve, in order to cut off the leak, which ensure to obtain the very good online leak sealing effect.

　　Want to remind everyone's attention, in using a short tube pressure welding method to do online leak sealing to seal, short tube should be welding well in advance to the root of the broken pipe connection pipe diameter to fit the saddle reinforcing ring, so that the welding pressure pipe is more reliable and easier. Valve gate valve as the ideal, facilitate better pressure. This method of processing time is short, simple operation, can be applied to medium and high pressure pipeline leakage fault.