What qualifications are required to manufacture skid-mounted pressure vessels?
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Production license for skid-mounted pressure equipment. Comment date: 2022-12-27. Hello. Our company plans to produce a skid-mounted unit consisting of pressure vessels, valves, piping fittings, instruments, etc. The pressure vessels, valves, piping fittings, and instruments are all purchased from manufacturers with the appropriate qualifications for producing such special equipment. Our company is responsible only for manufacturing the connection sections between the pressure vessels and valves (which consist of pipes, fittings, and welded flanges), and then assembling them to create a skid-mounted product with specific functions. At present, our company does not yet possess the necessary qualifications for handling such special equipment. May I ask what qualifications are required for the design and manufacture of this type of skid-mounted equipment, and which standards should be followed? Thank you! Reply: Equipment systems that include pressure vessel and pressure pipeline components can be assembled by manufacturing units holding a manufacturing license for pressure vessels of the corresponding grade for such systems; please refer to the relevant requirements in the \"Rules for Licensing Special Equipment Manufacturing and Filling Units\" (TSG 07-2019). The registration for the use of skid-mounted pressure equipment systems shall be carried out in accordance with the requirements of Quality Inspection Special Letter [2016] No. 46. Relevant department: Special Equipment Safety Supervision Bureau. The pressure-bearing pipelines of lifting equipment should be assembled by manufacturing units that hold a pressure vessel manufacturing license, or by units that possess a pressure pipeline installation license. If your company does not have these two certificates, you will need to obtain them or outsource the task.
At the same time, in accordance with relevant regulatory requirements, it is necessary to conduct qualification assessments for the design and manufacturing of the connecting pipes, as well as carry out strength calculations, material selection, and welding process evaluations. For specific details, refer to standards such as the \"Code for Design of Pressure Vessels\" and the \"Code for Design of Steel Pressure Piping\". It is recommended that you contact the local authorities responsible for the supervision and management of special equipment to inquire about the specific requirements and procedures. -
Since the final inspection authority will go to verify the inspection certificates for the skid-mounted equipment, you need to have a pressure vessel manufacturing license of the appropriate level or a pressure pipeline installation license of the corresponding grade. This is the case where you only assemble and do not manufacture. If producing products in-house, corresponding level of design and manufacturing certificates for containers and pipelines are required