Synthetic jewels are suited for flow control applications. Pg 28.
“Synthetic Gems Make Precision Possible
“Diamonds may be girl’s best friend, but ruby and sapphire can help keep her alive. …
….synthetic ruby and sapphire are employed in numerous medical applications. ….
Established in 1913 as a supplier of small ruby and sapphire bearings to the watch industry, Bird Precision adapted its skills over time to service the medical market, among various others.
“The same equipment we used for making and mounting bearings is used for mounting orifices for medical applications.” Says Paul Baillio, the company’s vice president of sales. “We have specialized equipment that will take the ruby and sapphire pieces and mount them into metals: It easy an easy transition.”
The transition to serving the medical industry has primarily centered on flow control applications. Included in the company’s offerings are standard ruby and sapphire orifices for oxygen valves. Bird discovered that its products were suited for such applications since they require materials that do not flash, outgas or oxidize. Plus, the jewels enable control over the delivery of small amounts of oxygen in precise doses.
In addition to gas valves the company supplies ultra clean orifices and nozzles for the chip and implantable device markets. Nonthrombogenic, clean and precise ruby and sapphire are incorporated into implants in such parts as shut off valves, pumping systems and wire feedthroughs. Desirable properties of the material include abrasive resistance 5 times that of carbide, zero porosity, high temperature tolerance, chemical resistance, and hardness.
Standardization of products has been a priority for the company; it now offers three specific series dependant on whether the application is high or low pressure. Orifice and filter inserts are offered in sizes ranging from .0004” thru .081”inch. In more than 150 distinct sizes. Flow rates are available at less than 1sccm of dry air.
“what we do is supply complete product, so not only can you buy an orifice with the exact flow rate you want, but we can also package it with a filter and a stainless steel fitting. “ Baillio says. “We have a complete machine facility here” The company also provides Swage, Parker, Smc and Value Plastics orifice and filter retrofits.
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