Leak-stopping under pressure* * What are the specifications?
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Leak-stopping under pressure* * The specifications mainly include the following standards: 1. * * standard * GB/T 26467-2011 "Technical Specifications for Pressure Sealing of Pressure Equipment": It stipulates the technical requirements for pressure sealing of pressure-bearing equipment and is suitable for pressure sealing operations of various pressure-bearing equipment. * GB/T 26468—2011 "Design specifications for pressure sealing fixtures for pressure-bearing equipment": Specific specifications are proposed for the design of pressure-sealed clamps to ensure the safety and reliability of the clamps. * GB/T 26556—2011 "Technical Conditions for Pressure Sealants for Pressure Equipment": The technical performance and requirements of sealants used for pressure sealing are specified. * GB/T 28055-2023 "Technical Specifications for Pressure Plugging of Steel Pipelines": It is suitable for pressure drilling and sealing operations of steel oil and gas transmission pipelines. Other medium pipelines can be implemented as a reference. 2. Industry standards * HG/T 20201-2007 "Technical Specifications for Pressure Sealing": Developed by the chemical industry, it is suitable for pressure sealing operations of equipment and pipelines in the chemical industry. * AQ 3060-2025 "Safety Management Specifications for Pressure Sealing and Pressure Holing Operations": Issued by the Ministry of Emergency Management, it focuses on standardizing safety management requirements during operations and is applicable to hazardous chemical companies, etc. 3. Laws and regulations * TSG D0001-2009 "Pressure Pipeline Safety Technical Supervision Regulations—Industrial Pipelines": Specifies the use conditions and safety requirements for pressure sealing technology. * TSG 21-2016 "Safety Technical Supervision Regulations for Stationary Pressure Vessels": Specific requirements are put forward for the pressure sealing operation of pressure vessels. In addition, personnel working in pressure plugging must hold the corresponding "Special Equipment Operator Certificate" and must conduct a risk assessment and formulate safety measures before operation. When pressure-bearing pipelines with flammable and explosive media leak, some industries (such as hazardous chemical companies) prohibit leak plugging under pressure, and the device must be shut down immediately. The above information comes from Internet searches and reference materials.
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