... speed 2-25m/s PH range 0~14. Graphite packing is braided from expanded flexible graphite yarns, which are reinforced by cotton fi ... glass fiber, and then impregnated with PTFE. Compared with traditional graphite packing, it has more excellent cross-section tightness, structural strength and ... Shaft speed Rotating 25bar, 25m/s Reciprocating 100bar, 2m/s Valve 300bar, 2m/s PH range 0~14 Density 1.1 ...