Can the connection flange for vacuum equipment be PN2.5?
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As the title suggests, the connections for vacuum equipment are quite large, with diameters of DN600, DN700, DN800, DN900, and DN1000. Can a pressure rating of PN2.5 be used for the flanges? It is usually PN6. Thank you.
It is uncommon to use PN2.5 flanges for the connections in vacuum equipment, as vacuum systems generally require good sealing performance from the flanges, and flanges with lower pressure ratings may not be able to provide sufficient sealing. In conventional vacuum systems, even for large-diameter pipes, flanges of PN6 or higher grades are typically used to ensure the sealing stability of the system. The selection of the flange must be determined based on the specific working pressure and sealing requirements. For low-demand, custom vacuum environments with adequate sealing measures, the use of PN2.5 is not ruled out, but careful consideration is required. It is recommended to consult a professional vacuum equipment manufacturer or engineer for specific selection. .
Three-effect evaporation crystallization; PN2.5 pipes are used for large-diameter pipelines, and production is proceeding normally.
PN2.5 is too thin and prone to air leakage, which affects the vacuum level. However, if there are other methods to prevent leaks, those can also be used.