High Temp and High RPM applications. Chemical applications. Power generation applications including Condensate and Boiler Feed pumps.
A combination of high purity carbon fiber and carbon-inserted graphite exfoliated foil
All inter braided construction, Style 357 utilizes a resilient, “springy” carbon center around which the exfoliated carbon-inserted foil is braided while laying very high strength, silky carbon yarn in the corners. This choice of materials and construction enables the surface of Style 357 to overcome the plating effect, common with exfoliant foils alone. Not only is the matrix spring-like, the outer-edge carbon yarns prevent migration of the foil to the stem or sleeve and improves the actual sealing effect. In addition, this particular layup and materials choice yields a much denser product than exfoliant foils alone can yield. This culminates in a product that retains a very high percentage of both its weight and volume even at the highest temperatures and pressures. Style 357 passes API Standards 622, Process Valve Packing for Fugitive Emissions, test requirements.
- Prevent exfoliated foil accumulation.
- Retains weight and volume density.
High Temperature and High RPM applicaitons. Power Generation rope packing.
- Graphite - Exfoliated
- Rotary & Reciprocating
- Valve & Reciprocating
- Soot Blowers
Surface Velocity in FPM
Non-Oxidizing Temp in Fº
Condensate, Boiler Feed, High-Speed, High RPM
5 is Excellent and 1 is Marginal. This chart is provided as a guide in selecting the packing material that best meets your application needs. The listed ratings assume average conditions of rotating equipment, adequate flushes, and use of product within published parameters.