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,
LEGIERTER EDELSTAHL
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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