The AW CHESTERTON CO 1725-1/2 is a discontinued PTFE yarn packing assembly designed for food processing applications. This 1/2 inch component withstands pressures up to 325 PSIG and operates at shaft speeds of 6M/S. It features a temperature range of -20 to 450 degrees Fahrenheit and chemical resistance within pH 3-11. Suitable for use in pumps, agitators, and mixers handling food processing fluids.