Premium Braided Mechanical Packing

Style 357

Made in the USA
SWEET SPOT & BEST USES:
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

Construction
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.
Characteristics
  • Prevent exfoliated foil accumulation.
  • Retains weight and volume density.
Applications
High Temperature and High RPM applicaitons. Power Generation rope packing.
Base Materials
  • ‍Carbon
  • Graphite
  • Graphite - Exfoliated
GENERAL APPLICATIONS
  • ‍Rotary & Reciprocating
  • Valve & Reciprocating
  • Soot Blowers
Reported Values of PerformANCE
Max Temp in Fº
850
pH Range
1-14
Surface Velocity in FPM
NA
Non-Oxidizing Temp in Fº
6000
Pressure in PSI
4500
KEYWORDS
Condensate, Boiler Feed, High-Speed, High RPM
PRODUCT INFORMATION
MSDS INFORMATION
CHARACTERISTICS CHART
Cutting Ease
4
Cut Cleanliness
4
Extrusion Resistance
4
Abrasion Resistance
2
Pounding Resistance
2
Heat Dissipation
5
Shaft Scoring
5
Installation Ease
4
Deformation Resistance
4
Ability to Conform
3
Resistance to Acids
4
Resistance to Caustics
5
Dimensional Stability
5
Removal Ease
4
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.

Questions? Ask our Engineers.

SealRyt Corp. is the industry leader in rotating shaft sealing technology. Our engineers have years of experience in the science of sealing. That's why we hold multiple patents on sealing technology. That's also why our products last longer, get better results, and simply seal better than any other products available.

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