O'Keefe Controls Co. Datasheets for Flow Orifices and Flow Restrictors

Flow orifices and flow restrictors contain precision-machined holes and filters or screens to restrict flow and reduce pressure. They are available as stand-alone devices and in kits, assemblies, restrictors, and restrictor valves.
Flow Orifices and Flow Restrictors: Learn more

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Product Name Notes
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...
These checked orifices consist of a precision orifice in a series with a ball check valve. The flow rate of the restricted flow is set by the orifice size. Reverse...
Bidirectional fixed flow orifices provide metered flow in two opposite directions. Flow in one direction occurs only through the low flow orifice. Flow in the opposite direction occurs through both...
Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to as large as .063" orifice diameter dependent on fitting geometry. Special sizes can...
These low cost flow controls employ a check valve with a stainless steel or buna-N ball and a precision orifice. Free flow occurs in one direction and metered flow occurs...

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