Pipeline selection and material requirements
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Seeking guidance on the requirements and methods for pipeline selection, as well as the material requirements for use in alkaline solutions! ! ! !
For the transportation of alkaline solutions, high-quality carbon structural steel with grade “20” is generally used, while storage equipment is typically made of Q235-B material. This post was last edited by Stormy Weather on 2009-4-10 08:35.]
For pipeline selection, it is necessary to calculate the pressure; there are formulas for determining wall thickness. In the case of alkaline solutions, the concentration plays a role, and for 48% concentrations we use plastic-lined pipelines
You can look up a diagram for this; it’s mentioned in many standards. Chart for selecting alkali solution concentration and temperature.
It can be found in the chemical piping manual; generally, design companies have their own design specifications, which makes things easier. Last edited by tt80111 on 2009-4-10 13:28]
It is determined based on the operating conditions; for strong alkalis alone, pipes with a higher nickel content are generally used, while for lower concentrations, carbon steel is sufficient； We also need to check if there are any media of other types inside