Keckley Style DF Epoxy Coated Cast Carbon Steel Style DF Check Valve, Wafer Raised Face, 285 psi

Carbon Steel Valves
431635P
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Keckley Style DF Epoxy Coated Cast Carbon Steel Style DF Check Valve, Wafer Raised Face, 285 psi
  • Body Material: Cast Carbon Steel
  • Manufacturer: Keckley
  • Connection Type: Wafer Raised Face Spiral Serrated
  • Finish/Color: Epoxy Coated
  • Item Name: Check Valve
  • Material Standard: ASTM A216 Grade WCB, ASTM A351 Grade CF8M
  • Pressure Class: Class 150
  • Seat Material: Buna-N
  • Temperature Rating: -20 to 250 deg F
  • Trim Material: 316 Stainless Steel Disc
  • Type: Style DF, Double Flange Disc

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