Products → Packing and Gaskets → Pump, Mixer, and Agitator Packing → 477-1
477-1
Chesterton 477‑1 is a high-performance carbon fiber packing made with low-modulus filament yarn and inorganic blocking agents to resist gas and liquid penetration. Treated with a molybdenum-based corrosion inhibitor, it offers strong sealing with reduced stem pitting and wear.
Rated for extreme conditions—up to 1,050°F, 3,600 psi in stationary service, and pH 0–13—it provides low friction, fast break-in, and long service life. Ideal for pumps and valves in demanding industrial environments.
Not Sure What You’re Looking For? Contact Us
Product Features
✔ Strong, yet pliable, continuous filament carbon yarn
✔ Unique inorganic blocking agent inhibits gas/liquid penetration
✔ Molybdenum-based corrosion inhibitor protects against stem pitting
Technical Data ↓
-
Virtually all pumps and valves against most solvents, gases, and other liquids
-
Low modulus carbon fiber
-
3.2 ( 0.125 inch )
-
25.4 ( 1 )
-
3600 PSIg ( 250 BARg )
-
200 PSIg ( 14 BARg )
-
15 m/s ( 3000 fpm )
-
1050 °F ( 565 °C )
-
13 pH
-
Except with strong oxidizers