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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.
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Main Applications

  • Chemical industry
  • Boiler feed applications
  • Boiler recirculation
  • Condensate transport

Technical Data

Nominal pressure
PN 63, PN 100
Max. nominal size
DN 400
Maximum allowable fluid temperature
530 °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

Function
Prevent backflow
Connection type
Flange,
Butt weld ends
Casing material
P265GH,
P250GH,
13CRMO4-5,
1.5415
Nominal pressure
PN 63,
PN 100
Max. nominal size
DN 400
Min. nominal size
DN 80
Maximum allowable fluid temperature
530 °C
Minimum allowable fluid temperature
-10 °C

Sectional Drawings

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