Chesterton 477-1 carbon fiber packing combines a new yarn formulation with superior blocking agents. New, low modulus yarn provides the strength associated with continuous filament carbon fibers plus greater flexibility. This makes 477-1 strong, yet pliable, without the brittleness of conventional carbon packing.
Chesterton 477-1 incorporates a high-purity dispersion of inorganic platelets which prevent penetration of gases or liquids through the packing. Inter-braid construction locks these blocking agents within the packing ring.
Specification :
Technical Data Temperature Limit : 566°C (1050° F) Pressure Limit : 250 bar g (3600 psig) Shaft Speed : 15 mps (3000 fpm) Chemical Resistance : pH 0 to 13 except with strong oxidizers
Application :
Virtually all pumps and valves against most solvents, gases, and other liquids