Fluid Power Journal

Precision Orifices Offer Trouble-Free Performance and Repeatability


O’Keefe Controls Co. manufactures a wide variety of precision orifices and assemblies for use in gas or liquid metering and control. With a production capacity second to none, O’Keefe Controls offers standard and custom products in diameters as small as .0003 inches. Each orifice is accurately produced, thoroughly cleaned with advanced ultrasonic technology, and flow tested to exacting standards to ensure trouble-free performance and repeatability. Mass flowmeters are utilized for NIST traceable calibration.

There are three families in the overall precision orifice line up at O’Keefe Controls.

The manufacturer’s metal orifice assemblies feature NPT and barbed connections along with threaded, press-in, compression and VCR fittings. The devices are used widely where precision, performance and repeatability are crucial. Single- or two-piece configurations are available.

O’Keefe Controls’ sapphire orifice is a stable, accurate flow restrictor available in diameter sizes from .0012″ to .0252″ (in 32 increments). The device is highly resistant to heat, wear and corrosion.

The Precision Micro-Orifices® are constructed of brass or stainless steel in diameter sizes from .0003″ to .005″. They are used to accurately meter very low flow rates of gases or liquids. Optional stainless steel screens are available to protect against contamination from minute particles.

4 Maple Drive • Monroe, CT 06468
Toll Free: 1.800.533.3285
Email: info@okeefecontrols.com

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