Made of polyacrylonitrile fibre through reinforcing braiding and impregnated with PTFE, having highstrength, wear-and impact-resistance, and ideal substitute for asbestos packings, and spplicable for packing seal of pumps, valves and vessels at a high linear speed and pressure.
241s has the same basic materials, process and applications as 240.
Silicone rubber elastomer provided in central position to improve compression power.