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 Hydr casing
PN 63, PN 100, PN 160
Maximum nominal size TSG
DN 300
Max allowed fluid temp TSG
550 °C

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Benefits

  • 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 function
Prevent backflow
Connection type Inlet
Flange,
Butt weld ends
Mtrl Hydraulic casing
P250GH,
13CRMO4-5
Nominal pressure Hydr casing
PN 63,
PN 100,
PN 160
Maximum nominal size TSG
DN 300
Minimum nominal size TSG
DN 80
Max allowed fluid temp TSG
550 °C
Min allowed fluid temp TSG
-10 °C

Sectional Drawings

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