Chesterton 477-1T Carbon/PTFE Packing

Chesterton 477-1T Carbon/PTFE Packing
Chemically-Resistant Carbon Yarn Packing


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Chesterton 477-1T is a tough, yet pliable, continuous filament carbon yarn packing impregnated throughout with PTFE to provide a non-contaminating, non-staining carbon yarn packing.  Developed for the tough applications in the pulp and paper industry, 477-1T is specially designed to be used in high pressure feeders, pre-steaming vessels and applications that are moving abrasive slurries. This packing's combined force of carbon yarn and PTFE dispersions increases its chemical resistance against strong caustic and acid mediums. 

Chesterton 477-1T is also an excellent bottom anti-extrusion end ring when coupled with Chesterton 1400R Carbon-Reinforced Graphite Packing​ in rotating equipment. This combination is ideal for reducing or eliminating flush water from a stuffing box.

Chesterton 477-1T Carbon/PTFE Packing
Non-contaminating, non-staining carbon yarn packing
Unique inorganic blocking agent stops gas/ liquid penetration
Molybdenum-based corrosion inhibitor prevents stem pitting​​​​​​

​Virtually​ all pumps and valves against most solvents, gases, and other liquids.

Temperature Limit 260°C (500°F)
Pressure Limit 14 bar g (200 psig) 
​Shaft Speed 15 m/s (2000 fpm) ​​15 m/sec (3000 fpm) when used as a bottom anti-extrusion ring with Chesterton 1400R
Chemical Resistance pH 0 to 14 except strong oxidizers



Product Datasheet: Chesterton 477-1T (English) Datasheet: Chesterton 477-1T (English)pdf
SDS: Chesterton 477-1T (English) Chesterton 477-1T (English)pdf
SDS: Chesterton 477-1T (Espanol) Chesterton 477-1T (Espanol)pdf
SDS: Chesterton 477-1T (Francais) Chesterton 477-1T (Francais)pdf
Product Datasheet 477-1T (Finnish) Datasheet 477-1T (Finnish)pdf



Catalog: Chesterton Packing and Gasket Product Catalog (English) Chesterton Packing and Gasket Product Catalog (English)pdf