Bird Precision - Waltham, MA
Manufacturer, Custom Manufacturer
Manufacturer of orifices & filters for the control of both liquids & gas. A wide selection of standard inserts, fittings & connectors to make it easy for the design engineer to assimilate their products. Products are ideal for harsh environments, offering wear resistance, chemical resistance & extreme accuracy for repeatable flow.
www.birdprecision.com/bearings/ring.cfm

Swiss Jewel Co. - Philadelphia, PA
Distributor, Manufacturer, Custom Manufacturer
Manufacturer & distributor of orifice jewels made of sapphire for applications including control units, flow meters, ultra-high pressure waterjet orifices & ink jet printing.
www.swissjewel.com/1/orifice_jewel_applicat...

Beswick Engineering Co., Inc. - Greenland, NH
Manufacturer, Custom Manufacturer
Manufacturer of sapphire orifice jewels. Sapphire is suitable for critical flow applications because its features include wear, heat & corrosion resistance. The sapphire orifice dia. is held to a tolerance of plus/minus 0.0001 in. Orifice fittings are typically used for controlling the speed of air cylinders, for delays in timing & sequencing circuits & for other applications requiring precisely metered flow.
catalog.beswick.com/?cid=1#WORKFLOW;FILTER_...

Microlap Technologies, Inc. - Rolla, ND
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer specializing in orifices for the waterjet industry. Made from synthetic ruby & sapphire, & available in standard or custom sizes & configurations, waterjet orifices are mechanically drilled to reduce material fatigue often caused by laser drilling. Exclusive "Micro-Rolled" lapping process provides polished radiuses for superior stream consistency.
www.microlap.com/products-jewel-bearings.ph...

General Ruby & Sapphire Co., Div. of EWM General Corp. - New Port Richey, FL
Custom Manufacturer
Custom manufacturer of orifice jewels including sapphire vee entry orifice jewels. Specifications include 0.004 in. to 0.030 in. orifice & 0.078 in. x 0.033 in. thickness & 0.065 dia. x 0.025 in. thickness. Jewels are available in stock.
www.generalruby.com/Sapphire-Vee-Entry-Orif...

Sapphire Engineering, Inc. - Pocasset, MA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer Of Bearings, Plug Gages, Pivots, Ind. Sapphires; Lapping, Polishing Service

Imetra - Elmsford, NY
Manufacturer, Custom Manufacturer
Precision Jewel Bearings

Silian Tech Co. Ltd. - Vancouver, BC
Manufacturer, Custom Manufacturer, Manufacturers' Rep
Manufacturer of synthetic sapphire, ruby & customized ceramic components for various industrial markets, sapphires & ruby: optical, synthetic windows, rods, balls, orifices, substrates, nozzles, cups, vees, UV & IR windows & lenses. ISO 9001-2000 certified.

Sygrin International Inc. - Little Neck, NY
Manufacturer, Custom Manufacturer, Service Company
Manufacturer Of Crystal Growing, Electro-Optic, Fiber Optic Components