Food-grade carbon dioxide pipeline
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I would like to ask everyone: for food-grade carbon dioxide pipelines operating at a temperature of 70 degrees and a pressure of 4.0 MPa (G), what type of pipes and valves should be used? The wall thickness specified in QB/T2467-1999 is too thin to be suitable for use. Please help me out; thank you very much
For food-grade applications, 304 and 316 stainless steel can be considered; attention should also be paid to removing any dark spots resulting from welding, preventing contact with oils and fats, as well as ensuring proper sterilization of the system.
Reply to 2# dayongli86: Thank you for the answer. What are the relevant standards being used? What about the pipes and valves?
Food-grade probably means an improved level of hygiene; try the ISO standard. Many sanitary-grade products are manufactured in accordance with ISO standards
Our food-grade liquid carbon dioxide equipment is designed in accordance with the HG20592-2009 standard
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