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In HG/T 20592 Flange SO 600-25 RF 9.53, what do 25 and 9.53 mean?

2017-09-01View Original

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Dear sea friends: In the matched flanges, the standard HG/T 20592 specifies flanges of type SO 600-25 RF 9.53. What do the numbers 25 and 9.53 represent in this context?
Reply #22017-09-01
25 is the pressure rating PN25, 9.53 is the pipe wall thickness

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