Airtightness test temperature
Thread Content
The standards and specifications do not specify the test temperature for the airtightness test; what do you think the appropriate test temperature should be?
It can be put into use as long as it is airtight at room temperature; in cases where the actual temperature is higher, heating is required to achieve a tight seal
The ambient temperature is sufficient; during the airtightness test, the testing liquid must not freeze, as that could affect the accuracy of the assessment.
GB150 specifies clear thermal requirements. P338-11.4.9.3 Test temperature. It is best for the process documents within the company to follow these requirements ； Now, the boiler inspection agency requires us to specify the pressure test temperature on the drawings.
This clause refers to the temperature for the voltage withstand test, while the original poster is talking about the airtightness test
The pressure vessel inspection agency only conducts pressure resistance tests; it does not perform airtightness tests, and normal room temperature is sufficient.
Since it is a gas-tightness test, the testing medium is gas, the test pressure is the design pressure, and no special requirements are necessary regarding temperature...