What is the test pressure for air pressure?

The test pressure for ordinary gas storage tanks is usually 1.5 to 2 times the rated operating pressure. The specific test pressure must be determined based on the actual conditions and relevant standards. .

You can’t hear it on the second floor; it’s okay to hear what’s said on the third floor； The design pressure shall be 1.1 times or 1.1 times the maximum allowable operating pressure, as specified in 4.6.2.2 of P14 in GB/T150.

The questions posed by the original poster contain a great deal of information and are contradictory: 1. The scope of gas storage tanks is very wide; it’s not even clear what ordinary gas storage tanks are. Even in the case of nitrogen or air storage tanks, these still have limits at most； 2. Nitrogen storage tanks, air storage tanks, and even chlorine storage tanks do not require pressure testing, unless pressure testing is not feasible in which case it is carried out ； 3. Ordinary nitrogen storage tanks and air storage tanks do not meet the conditions for pressure testing ； 4. The pressure coefficient for pneumatic testing is generally 1.1; it is calculated by multiplying the design pressure, or the maximum allowable operating pressure, or the pressure used for monitoring, by this coefficient and then by the allowable stress ratio (which is approximately 1 in most cases) ； 5. For nitrogen storage tanks and air storage tanks, there are also simple pressure vessels; the pressure resistance test for such simple pressure vessels is conducted at 1.5 times the design pressure ； (For the pressure testing equipment of other coefficients, no device referred to as a gas storage tank was seen.) 6. Low-temperature storage tanks can also be roughly called gas storage tanks; large low-temperature storage tanks are subjected to pressure testing due to issues such as foundations. The standard requirements for such pressure testing are: (design pressure + 0.10 MPa) multiplied by 1.1, with regard also to be paid to the static pressure caused by the liquid column.

This post was last edited by ftxswb on 2023-7-28 at 15:04. For containers designed, manufactured, and inspected in accordance with GB/T150, all A and B class weld joints that are subjected to pressure testing must undergo non-destructive testing； This is a mandatory requirement.