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8 Necessary Technical Factors that Need to Be Considered When Purchasing Valves

  • 2021-06-01 19:02

        It is not enough to only specify the specifications, categories, and pressures when purchasing valves. It is imperfect in the current market economy environment. Because valve manufacturers, in order to compete with their products, each carried out different innovations under the concept of unified valve design, forming their own corporate standards and product personalities. Therefore, it is necessary to make detailed technical requirements when purchasing valves, and coordinate with manufacturers to reach a consensus, which is very necessary as an attachment to the valve procurement contract.

    1. General requirements
 


 

    1.1 The valve specifications and categories should meet the requirements of the pipeline design documents.

    1.2 The valve model should be marked with the national standard number requirements. If it is a corporate standard, the relevant description of the model should be indicated.

    1.3

The working pressure of the valve is required to be greater than or equal to the working pressure of the pipeline. The working pressure that the valve can withstand should be greater than the actual working pressure of the pipeline without affecting the price; any side of the valve should be able to withstand 1.1 times the working pressure of the valve when the valve is closed Without leakage; when the valve is open, the valve body should be able to withstand twice the valve working pressure.

    1.4 The valve manufacturing standard should state the national standard number on which it is based. If it is a corporate standard, the purchase contract should be accompanied by corporate documents. 

 

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