What do the low-temperature valves VSFD1E08 and VSFM1E03 mean?
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The material for low-temperature valves is CF8/HF RF; what does VSFD1E08 mean? Where does it come from? Are there any standards? There is also a valve with the designation PN16 DN15 F304 RF VSFM1E03; what does VSFM1E03 mean? I searched online for a long time but couldn’t find any information.
It is a code created by the design institute itself; there is no source for it. You can ask them for the valve specification sheet. m1e,d1e should be the pipe material grade codes