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Ball Type Ball Type

O'Keefe Controls manufactures Ball type check valves in three sizes: 10-32, 1/8" NPT and 1/4" NPT. They are available in both brass and stainless steel and are well-suited for use with liquids or gases. Free flow occurs in one direction only; reverse flow is prevented. All valve seats are metal-to-metal construction.

Typical Applications:

  • Small reciprocating proportioning pumps
  • Multi line dispensing devices
  • Fill operations
  • Eliminate back flow and priming in start/stop pump applications
  • Minimize dripping from static spray nozzles
  • Expansion valves/pressure relief operations
  • Prevent reverse flow through solenoid valves

Features:

  • Metal-to-metal construction
  • Long, trouble-free operating life
  • Many cracking pressure options
  • High pressure
  • 3 sizes(10-32, 1/8" NPT, 1/4" NPT)
  • Minimal seat leakage may be expected

Click here to view more info on these devices in our product catalog.

Disk Type Disk Type

O'Keefe Controls Disk type check valve packages are actually a parallel arrangement of a disk check valve and a precision orifice. Free flow occurs in one direction and only metered flow occurs in the opposite direction. Suitable for both liquids and gases the fixed flow controls are available in brass or stainless steel.

Typical Applications:

  • Air cylinder speed controls
  • Compressed air dryer purge controls
  • Timing circuits

Features:

  • Brass and stainless steel variations
  • High flow capacity
  • Low cracking pressure
  • Low pressure loss
  • Long, trouble-free operating life
  • 4 sizes (10-32, 1/8" NPT, 1/4" NPT, 3/8" NPT)

Click here to view more info on these devices in our product catalog.

Threaded Insert Threaded Insert

The threaded insert style check valves from O'Keefe Controls provide precise fluid control in a highly miniaturized environment. They are available in three thread sizes, 10/32, 5/16•24 and 7/16•20, in brass or stainless steel. The devices are suitable for use with compatible liquids or gases. Free flow occurs in one direction and reverse flow is blocked.

Typical Applications:

  • Thread into ports on multi feed manifolds.
  • Vent port spill prevention
  • One way fill port/injector
  • Speed controls
  • Spray nozzle drip control
  • Pneumatic Controls

Features:

  • All Metal Construction (5/16", 7/16")
  • Brass or Stainless Steel
  • Long, trouble-free operating life
  • Many cracking pressure options
  • Optional O-ring body seal

Click here to view more info on these devices in our product catalog.

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