This document specifies the inspection content, inspection methods and conformity assessment criteria for breathing valves, emergency relief valves, hydraulic safety valves and nitrogen sealing valves of vertical cylindrical steel welded storage tanks in service. This document applies to breathing valves, emergency relief valves, hydraulic safety valves and nitrogen sealing valves for in-service vertical cylindrical steel welded storage tanks with a design pressure less than 0.1 MPa and containing petroleum, petrochemical products and other similar liquid media. test.
T/CASEI 026-2023 history
2023T/CASEI 026-2023 Technical specification for inspection of safety accessories of vertical cylindrical steel welded storage tanks in-service