4221 PTFE GRAPHITE WITH ARAMID ZEBRA PACKING
MK4221 is blended and braided with 1126Y and 3000Y by special process...

Metal jacketed gaskets are frequently required with pass partition bars, which manufactured by one-piece construction. These gaskets are specially designed and widely used for heat exchangers, autoclaves, columns, pressure vessels, flue stacks, boilers, gas mains, valve bonnets, pumps and similar services.