Is a license required to weld a bracket onto the pressure vessel body?
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Experts: Is it necessary to have relevant qualifications for pressure vessels in order to weld a support onto the vessel itself?
In principle, the main structure shall not be arbitrarily welded with external load-bearing legs, brackets, etc
It’s necessary; it can be considered a kind of modification as well. To check whether deformation has occurred after welding, etc. Are there any heat treatment requirements after welding? A hydraulic pressure test should be conducted again after welding. Take a look at the fixed capacity specification
According to the fixed-volume regulations, although it does not fall under the category of modifications or major repairs, welding other components to the container itself still requires approval from the original design team. The construction party must possess the necessary qualifications, as well as appropriate weldability assessments and welding procedures; furthermore, the welders need to have the required qualifications for such work.
Welding to the compressed components requires a certified welder, as well as appropriate welding procedure qualification.
Why are so many people asking strange questions this morning? 1. The main pressure-bearing components of pressure vessels do not allow welding； 2. If welding is required, it constitutes a major repair; the repair party must have the appropriate qualifications (design and manufacturing capabilities), written approval from the local regulatory authorities is necessary, and supervision by a special inspection agency is required. It’s essentially no different from manufacturing a new device, with the only difference being that materials are not needed. Many users or installation units, for various purposes, weld on the equipment itself arbitrarily; in many cases, the welding goes through the equipment itself. The legal responsibility falls on the user, while the installation unit or unqualified welders usually just leave after completing the welding work. Supervisory authorities can only track down the user
Permission from the original design unit must be obtained. Obtain the corresponding welding and repair qualifications.
In accordance with the provisions on renovation and major repairs in the Fixed Capacity Regulations, this should not be considered a mandatory requirement