Pipeline valve materials
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The data in the pipeline valve material table: WCB+PTFE/WCB+PTFE swing type, 1.6MPa, FF VCFM4H01. What do FF VCFM4H01/VBFM1H01 mean respectively? Thank you! Sea friend.
It appears to be a swing check valve with a cast carbon steel body and PTFE lining, with a pressure rating of PN16. “FF” refers to a flat flange, meaning that the flange surfaces are flat; the other codes are likely manufacturer-specific identifiers, probably referring to the valve model.
FF denotes the type of sealing surface for the flange, representing a flat surface. VCFM4H01/VBFM1H01 should be the manufacturer’s product code. It would be good to know what standards are being applied; that would be great
What the previous speakers mentioned is likely the correct answer; FF means that the sealing surface of the flange is flat, and what follows should be the manufacturer’s model number
Well, I agree with what was said above. Hehe, I suggest the original poster take a close look at the flange standards