Valve packing: PTFE graphite yarn, dry with graphite dispersion in all areas of wide application, universal valve packing, recommended for extensive standardization water, hot water, oil, heat transfer oil, steam (max. 60bar), acids and alkalis. (Limitation of use with strongly oxidizing media) Further design: – 1799, PTFE graphite solid yarn(G4) Max. Pressure fittings: 500bar