Problems with the airtightness test of towers
Thread Content
The hydrostatic test at 5.0 MPa for the towers in the chemical plant has been completed, and the equipment pipelines have been connected. The design institute requires a leak-tightness test at 4.0 MPa. Is it possible to use a test with the system pressure below 4.0 MPa instead?
For the 80-meter-high tower, a hydrostatic test was carried out after it was welded in 4 sections on-site; as mentioned in the question, do some engineers not conduct a gas-tightness test on each individual tower section, instead using a system-level gas-tightness test?
The requirements for gas tightness of the system are different from those for the gas tightness of the container itself, and they generally need to be addressed separately. It is also acceptable if the system’s airtightness test pressure is the same as that of the container body.