Is it correct to say that since the equipment is not a pressure vessel, there is no non-destructive testing?

This sentence is not completely correct. Pressure vessels are a type of pressure-bearing equipment that requires non-destructive testing to ensure their safe operation, as they operate under high pressure and pose a risk of explosion. Non-Destructive Testing (NDT) is a technique used to assess the integrity of materials, components, or entire systems. It is not limited to pressure vessels, but is also applicable to various types of equipment and structures, such as pipelines, building structures, airplanes, trains, and bridges. The purpose of non-destructive testing is not only to prevent accidents involving high-risk equipment such as pressure vessels, but also to maintain the stability and safety of all equipment subjected to certain stresses or pressures. Non-destructive testing can detect potential defects and problems, enabling timely repairs or replacements without disrupting the normal operation of the equipment. This helps prevent accidents and extends the equipment’s lifespan. Therefore, even if certain devices are not pressure vessels, if they are pressure-bearing equipment or structures with high safety requirements, appropriate non-destructive testing is usually also required. .

Wrong! For example, for common vertical cylindrical pressure vessels at atmospheric pressure, depending on factors such as sheet thickness, material yield strength, weld location, and weld type, there may be requirements for non-destructive testing! The standards for steel welded atmospheric pressure vessels also include requirements for non-destructive testing. Wait, regulate your own searches!