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NA 707(SC) - Flexible Graphite Sealing Ring + Spring Corners

Flexible graphite compressed moulded ring in endless form and with incorporation of spring in top and bottom of outer corner

  • Made by compressing spirally wrapped graphite tapes with spring reinforcement for high performance, heavy duty valves
  • High purity of graphite with low chloride, sulphur, fluoride, ash content etc with no binders
  • Remains elastic even with fluctuating temperatures and pressures up to 2,000 Bar
  • Self-lubricating packing with extremely low friction characteristics, larger gaps can be controlled by reinforcement of SS springs or caps integrated into the corners

Available in rectangular and angular cross section, for angular cross section please ask for NA 707 (SCA)

Service Media and Conditions Superheated and saturated steam, all non-oxidising liquids and gases, chemicals, fuel oil and lube oil, hot water and feed water, hydrocarbons and many other media Exceptions: Strongly oxidising media
Temperature -240°C to 540°C
Pressure 550 bar (static)
pH 0 to 14
Applications Valves