AKR/AKRS Swing check valve

Swing check valve AKR/AKRS

Swing check valve to DIN/EN with flanged ends (AKR) or butt weld ends (AKRS), pressure seal design, internally mounted hinge pin, body of forged and welded construction, seat/disc interface made of wear and corrosion resistant 17 % chrome steel or Stellite.
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Main Applications

  • Fossil-fuelled power stations
  • Process engineering
  • Boiler feed applications
  • Boiler recirculation

Technical Data

Nominal pressure
PN 63, PN 100, PN 160
Max. nominal size
DN 300
Maximum allowable fluid temperature
550 °C

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  • Added safety due to pressure seal design providing increased sealing to atmosphere: The higher the pressure in the valve body, the tighter the cover joint. Very low risk of leakage, particularly at high pressures and temperatures. Compact design.
  • Reliable, tight shut-off and service-friendly design due to flexibly mounted valve disc. Precise alignment of valve disc with body seat; valve disc is easy to replace.
  • Hard-faced seat/disc interface made of wear-resistant and corrosion-proof 17 % chrome steel or Stellite for long service life and high functional reliability.

Technical Data

Prevent backflow
Connection type
Butt weld ends
Casing material
Nominal pressure
PN 63,
PN 100,
PN 160
Max. nominal size
DN 300
Min. nominal size
DN 80
Maximum allowable fluid temperature
550 °C
Minimum allowable fluid temperature
-10 °C

Sectional Drawings