Keckley Style DF Epoxy Coated Cast 316 Stainless Steel Style DF Check Valve, Wafer Raised Face, 275 psi

Stainless Steel Check Valves
431651P
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Keckley Style DF Epoxy Coated Cast 316 Stainless Steel Style DF Check Valve, Wafer Raised Face, 275 psi
  • Body Material: Cast 316 Stainless Steel
  • Connection Type: Wafer Raised Face Spiral Serrated
  • Manufacturer: Keckley
  • Pressure Class: Class 150
  • Temperature Rating: -20 to 400 deg F
  • Trim Material: 316 Stainless Steel Disc
  • Finish/Color: Epoxy Coated
  • Item Name: Check Valve
  • Material Standard: ASTM A351 Grade CF8M
  • Seat Material: Viton
  • 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
  • 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
  • Lighter weight, by 80-90% than non-conventional full body check valves
  • Independent, dual shaft design allows interchangeability of shafts, the stop shaft stabilizes the discs during high flow rates
  • Field serviceable without the need for special tools
  • Constructed from rugged castings that are machined to exacting specifications
  • Retainlerless wafer double flange body
  • 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