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Fixed Flow Controls Fixed Flow Controls

Fixed flow controls are a parallel arrangement of a ball (or disk) check valve and a precision orifice. Free flow occurs in one direction and metered flow occurs in the opposite direction. Suitable for both liquids and gases the fixed flow controls from O'Keefe are available in brass or stainless steel. Threaded inserts are available in three sizes: 10•32, 5/16•24 and 7/16•20

Typical Applications:

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

Features:

  • All-metal construction
  • Long, trouble-free operating life
  • Many cracking pressure options
  • Tamperproof
  • High pressure
  • High flow capacity
  • Low pressure loss

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

Checked Orifices Checked Orifices

O'Keefe's checked orifices are a series arrangement of a precision orifice, a ball check valve and an optional screen. The all-metal assemblies are made of brass or stainless steel. Gas or liquid can flow in one direction only, at a rate established by the metering orifice. Reverse pressure differential does not result in reverse flow. Standard sizes are 10•32, 1/8" NPT and 1/4" NPT. Custom requirements will be reviewed for large quantity applications.

Typical Applications:

  • Unidirectional gas or liquid flow
  • Backflow prevention in metering systems
  • Fluid contamination reduction
  • Isolation of fluid sources in mixers
  • Fuel line metering with no reverse flow
  • Medical metering of fluids

Features:

  • All-metal construction
  • Long, trouble-free operating life

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

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