O`Keefe Controls Co.

Check Valves

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Ball type check valves are produced in three sizes: 10-32, 1/8' NPT and 1/4' NPT.They are available in both brass and stainless steel and are suitable for use with liquids or gases. Free flow occurs in one direction only; reverse flow is prevented.

  • All metal construction
  • Long life operation
  • choice of cracking pressure
  • High pressure capability

Materials of Construction

  • Body - Brass or 303 SS
  • Ball Check Assembly - 304 SS
  • Flow Control Orifice - Brass or 303 SS
  • Sealant - Locite 609, 680
  • High pressure types only

Maximum Temperature

  • NPT - 300°F (max.)
  • 10-32 - 150°F (max.)

Maximum Operating Pressure

  • Standard Pressure Type
  • NPT - 200 psig (max.)
  • 10-32 - 125 psig (max.)

High Pressure Type (Suffix H)

  • NPT - 2000 psig (max.)
  • Seat Leakage - 20 sccm (max.)
  • Air flow at 25 psi differential

Flow Capacity

  • Free Flow Direction

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