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Flowserve-Anchor/Darling-Piston (Lift) Check Valves - Anchor/Darling

Piston (Lift) Check Valves - Anchor/Darling

BRAND: Anchor/Darling

Anchor/Darling Piston Check Valves are versatile valves designed for low or pulsating flow applications where pressure drop through the valve is not critical.


  • Power
  • Oil & Gas
  • Chemical

industry sectors

  • Nuclear
  • Conventional Steam
  • Geothermal
  • Combined Cycle
  • Downstream Processing
  • Basic
  • Specialty
  • ASME B16.34
  • ASME Section III
Design Range

Size Range:

  • NPS 2 1/2 to 24
  • DN 65 to 600

Pressure Class Range:

  • 150 to 1500
  • PN 25 to 260

Seating Material: Metal, Soft

Features & Benefits
  • Broad application flexibility provided by the variety of available body types
  • High-performance ensured by a cast body with large radius curves designed to optimize internal flow passages and minimize pressure drops
  • Improved reliability and service integrity via body-guided disc design to ensure tight sealing and check valve protection in the event of fluid back flow
  • Ease of maintenance facilitated by the seal-welded seat ring, which allows for quick replacement
  • Rapid operation made possible by the optional equalizer lines that connect the bonnet area above the disc to the downstream port
  • Optional equalizer lines improve disc lift and eliminate dash-pot effect



Elastomeric Seat

Soft Seated


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