PTFE graphite packing aramide corners is used to prevent gap extrusions within the high pressure and temperature. PTFE graphite packing aramide corners is with perfect sliding velocity and thermal conductivity. This gland packing is recommended for piston pumps long service live. PTFE graphite packing aramide corners can be used to seal water.Sewage water,hot water.It can also be used to seal oils,greases,gases.,weak acids and alkaline solutions,abrasive media.