Representation of the material used for the internal components of soft-sealed valves

2024-05-12View Original

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Hello, experts. Regarding the pipeline grade table from a certain design firm, soft-sealed valves such as ball valves have their internal components indicated in two parts; for example, 304+PTFE. What components does 304 refer to? Does PTFE mean that the sealing surface is made of PTFE? Thank you very much

Reply #22024-05-12

304 refers to the fact that the metal components of the valve, such as the valve body and valve stem, are made of 304 stainless steel, while PTFE refers to the sealing material used in the valve, namely polytetrafluoroethylene. .

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Representation of the material used for the internal components of soft-sealed valves

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