NA 712

Flexible pure graphite sealing rings designed specially for NRVs such as cold reheat systems

  • Flexible pure graphite sealing rings having multi-layered metallic wire mesh on top and bottom: as per latest BHEL spec, square or rectangular sections
  • Flexible graphite rings reinforced with SS wire net in square, rectangular or angular section

Flexible graphite sealing ring in a male and female pair in trapezoidal cut

Service Media and Conditions Superheated and saturated steam, all non-oxidising liquids and gases, hydrocarbons, dyes and chemicals, fuel oil and lube oil etc
Temperature -240┬░C to 650┬░C
Pressure 300 bar (static)
pH 0 to 14
Applications Non-return valve bonnets (CRH NRV)