Precision Orifices
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 narrow as .0003 inches. Each and every device is accurately machined, 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.
Check Valves
This miniature check valve line employs a free floating stainless steel or buna-n ball, which allows free flow in one direction; reverse flow is prevented. The valves are suitable for air, water, inert gases, light oil and liquids compatible with the materials of construction. The valves are fast acting and are suitable for long life applications.
Miniature In-Line Screens & Breathers
Fine screens are used to protect orifices and other critical components from the occasional particles that enter the fluid during installation or otherwise. They are not intended to replace normal filtration equipment, but rather to augment the protection of critical components in fluid control systems.Four sizes of screen particle retention are offered; 10, 15, 25 and 100 microns. The stainless steel wire screens do not introduce loose particles into the fluid stream. The screens are thoroughly cleaned to prevent inadvertent introduction of contaminants.
Pneumatic Float Valves and Level Sensors
The Magnetic Float Valve is an air sensor for detecting liquid level inside a vessel. The float mechanism mounted within the vessel operates a ceramic coated magnet. As the float moves, it pivots the magnet. A magnetically actuated sensor on the outside of the solid metal housing reacts to the inner magnet movement. The movement shifts a 3-way air valve. Both side mounted and top mounted pneumatic float valves are available either as normally closed or normally open. Normally closed pneumatic float valves produce a pneumatic output on liquid level rise. Normally open pneumatic float valves produce a pneumatic output on liquid level fall.
