Tank test pressure issues
Thread Content
The storage tank test uses air pressure testing. Should the pressure be 1.15 times the design pressure? What pressure is the final seal test? It would be best to provide relevant regulations. Thanks!
There are clear provisions in Chapter 7 of the "Content Regulations". Please check it yourself. The final sealing test mentioned by the poster refers to the air tightness test, right?
The air pressure test pressure is not simply 1.15 times the design pressure, it has a calculation formula (stipulated in the "Capacity Regulations" and GB150)； Containers whose medium's toxicity is extremely or highly hazardous should undergo an air tightness test after passing the pressure test. When an air tightness test is required, the test pressure, test medium and inspection requirements should be indicated on the drawing.
The air pressure test can be calculated according to GB150, and the air tightness test can be calculated according to the design pressure (capacity regulations have regulations).
GB50235 has regulations. Generally speaking, it is 1.15 of the design pressure. The sealing test is the sealing test under the design pressure.
It is not necessary to do the air tightness test after passing the air pressure test. It is up to the designer to decide whether to do the final sealing test. I have never seen this statement before, and I don’t know where it comes from.
The air pressure test pressure is 1.15 times the design pressure, and the air tightness test pressure is equal to the design pressure.
The test pressure and air tightness test pressure of the pressure test are stipulated in GB150-1999 and the "Capacity Regulations". Air pressure test pressure: PT≥1.15P * /t, air tightness test pressure = design pressure. Notice: 1. Equipment used for air pressure testing must undergo 100% non-destructive testing. 2. Generally no air tightness test is done after the air pressure test.