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AKR/AKRS Swing check valve
Swing check valve


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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Technical Data

  • Nominal pressure Hydr casingPN 63, PN 100, PN 160
  • Maximum nominal size TSGDN 300
  • Max allowed fluid temp TSG550 °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

  • Component functionPrevent backflow
  • Connection type InletFlange, Butt weld ends
  • Mtrl Hydraulic casingP250GH, LEGIERTER EDELSTAHL
  • Nominal pressure Hydr casingPN 63, PN 100, PN 160
  • Maximum nominal size TSGDN 300
  • Minimum nominal size TSGDN 80
  • Max allowed fluid temp TSG550 °C
  • Min allowed fluid temp TSG-10 °C


TitleFormatSizeLast change
Declaration of Conformity (0570.8520_EN)PDF0.172021/4/19
TitleFormatSizeLast change
Operating manual (0570.81_EN)PDF11.392021/4/19
TitleFormatSizeLast change
Type series booklet AKR/AKRS (7373.1_EN)PDF1.22021/4/19