Keckley Style DF Epoxy Coated Cast Carbon Steel Style DF Check Valve, Wafer Raised Face, 740 psi

Carbon Steel Valves
431643P
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Keckley Style DF Epoxy Coated Cast Carbon Steel Style DF Check Valve, Wafer Raised Face, 740 psi

The Keckley retainerless wafer double flange body double disc check valve features a single cast body without pin retainer holes in the body. This design minimizes prospective leak paths through the valve body making it a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications. Keckley wafer double flange body double disc check valves are also suitable for liquid, natural gas, steam service, and even vacuum service applications.

NOMINAL SIZE
  • Features
  • Short face to face dimension
  • Lighter weight, by 80-90% than non-conventional full body check valves
  • Spring loaded, double disc design has a low cracking pressure
  • Tension spring performs a lifting motion on the disc to prevent excessive wear on the "heel" area of the elastomer seat
  • The independent, dual shaft design allows interchangeability of shafts
  • The stop shaft stabilizes the discs during high flow rates
  • Standards/Approvals: API 594 and 6D, API 598, ASME B16.5, ASME B16.34, MSS SP-6, MSS SP-25, MSS SP-55
  • Applications: For liquid and gas applications where protection from flow reversal in a pipeline is required