Questions regarding the test pressure for pipelines
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Regarding the test pressure for pipelines, some drawings specify it clearly. However, when this specification differs from the relevant requirements in the construction and acceptance standards, should the specifications in the drawings take precedence, or should the relevant requirements of the construction and acceptance standards be followed?
If the design and specifications do not match, the more stringent one of them should be followed. Additionally, it is best to communicate with the designers to understand their design intent.
It’s best to talk to the designer to see if there was a calculation error. If there are no calculation errors, the test should be conducted at the pressure specified in the drawings.
Communicate with the designers to have them check whether the drawings are incorrect; if they are confirmed to be correct, proceed with testing according to the drawings. Last edited by Cigarette butts on 2009-3-15 17:28]
The values on the drawings are large, so it is necessary to follow those values. There may be special requirements in the design. If the values on the drawings are smaller than those specified in the standards, it is a design error; one can ask the design agency for the reason behind this, as the minimum requirement should be to meet the standards.
The pressure resistance test of pipelines should, in principle, be carried out in accordance with the requirements specified in the drawings (or general design specifications). If the drawings do not provide clear instructions, then the relevant construction and acceptance standards shall be followed； If there are obvious errors in the drawings, it is recommended to consult the designer; pressure testing should only be carried out after confirmation by them. For reference!
As it does not comply with the regulatory requirements, it is best to first consult with the designer and conduct the pressure test only after confirmation.
For the vast majority of projects, there are more or less discrepancies between the design and the actual construction. When such situations arise during construction, it is necessary for both parties to communicate in order to ensure that both the technical requirements are met as well as the construction and acceptance standards are satisfied
Under normal circumstances, it should comply with the design requirements. If there are any discrepancies, consult the designer.