What does SF mean in the flange standard RF-SF?
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Does anyone know what SF means in the flange standard RF-SF? Explain the specific meaning
SF = special flange; it’s possible that your flange is not a standard type. Another term is spectacle flange, which is an abbreviation for the 8-shaped blind flange
It might be some manufacturer’s own identifier
RF-SF — Welded connection valves: The valve body has welding grooves for welding to the pipeline
What a 8-character blind plate means – what was said upstairs is also correct
I urge my colleagues to be sure about this – it is a notation used in American standard flanges; accurate information must be provided, and no guessing should be involved. Since it’s a standard specification, it’s best to avoid using the word \"possibly\" when describing it!
RF-SF means that the flange has an RF convex surface, but the convex surface is of an SF smooth type, requiring no machining of grooves or helices.
I agree with what was said above; we call the 8-character blind plate SB.
Q981380, you are correct, but do you have any detailed information on this? Please!
Smooth finish? It’s hard to say; talk things through clearly with the client~~Anything is possible.