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 offers standard and custom products in diameters as small as .0003 inches. Each and every device 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.
Metal Orifices
O’Keefe Controls fabricates a vast array of metal orifice assemblies with 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.
Typical Applications:
- Precision flow control – gases or liquids
- Speed controls – cylinders and actuators
- Pneumatic or hydraulic circuits
- Flow restriction
- Accurate throttling
- Snubbers – gages and instruments
- Ultrasonic sound sources
Features:
- High pressure
- Bi-directional flow
- Repeatable orifice size and shape
- Predictable flow rate
- NIST traceable flow data available
Click here to view more info on these devices in our product catalog.
Sapphire Orifices
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.
Typical Applications:
- Precision flow control – gases or liquids
- Accurate timing in pneumatic or hydraulic circuits
- Pressure dividing circuits and pneumatic resistance bridges
- Impedance matching
Click here to view more info on these devices in our product catalog.
Precision
Micro-Orifices®
O’Keefe Controls’ 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.
Typical Applications:
- Precision metering of very low flow rates – gases or liquids
- Standard for flow or leak rates
- Accurate timing in pneumatic or hydraulic circuits
- Flow limiting
Features:
- High temperature
- High pressure
- Bi-directional Flow
- High accuracy
- NIST traceable flow data available
Click here to view more info on these devices in our product catalog.