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STAAL 100 AKK/AKKS Swing check valve
Swing check valve

STAAL 100 AKK/AKKS

Swing check valve to DIN/EN with flanged ends (AKK) or butt weld ends (AKKS), with bolted cover, internally mounted hinge pin, body of forged or welded construction, seat/disc interface made of wear and corrosion resistant 17 % chrome steel or Stellite.

Technical Data

  • Nominal pressurePN 63, PN 100
  • Max. nominal sizeDN 400
  • Max. allowed fluid temperature530 °C

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Benefits

  • Additional features ensure safe sealing to atmosphere:
    • Risk of leakage is reduced by internally mounted hinge pin. The hinge pin mounting bracket is welded directly to the inside of the cover, so no additional seal to atmosphere is required.
    • Serrated cover gasket, fully confined to prevent creep.

Technical Data

  • FunctionPrevent backflow
  • Connection typeFlange, Butt weld ends
  • Casing materialP265GH, P250GH, LEGIERTER EDELSTAHL, 16MO3
  • Nominal pressurePN 63, PN 100
  • Max. nominal sizeDN 400
  • Min. nominal sizeDN 80
  • Max. allowed fluid temperature530 °C
  • Min. allowed fluid temperature-10 °C