Fiber-Optic Feedthroughs are hermetically sealed.
April 15, 2003 - Seal-Connect® bulkhead feedthroughs are offered in ST and FC configurations, in permanent and non-permanent versions. Design is based on hermetic joining of internal light conduit to zirconia ferrules. Insertion loss is typically 0.3 dB and maximum light loss is 0.5 dB. Feedthrough bodies are corrosion-resistant, 316 stainless steel and alignment sleeves are precision-machined zirconia. Units fit vessels with wall thicknesses from 1/16–1 in.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Greene, Tweed & Co.
2075 Detwiler Rd., P.O. Box 305
Kulpsville, PA, 19443 0305
USA
Greene, Tweed Offers a Complete Line of Fiber Optic Feedthroughs
Kulpsville, PA (March 2003) - Greene, Tweed announces a complete line of Seal-Connect® hermetically sealed fiber optic bulkhead feedthroughs. The new feedthroughs are available in ST and FC configurations in both permanent and non-permanent versions. Once installed the permanent feedthroughs are hermetically sealed with or without connections. The non-permanent models require one side to remain connected in order to maintain a hermetic seal. Connection and disconnection can be made without impairment to seal integrity.
The design of the new feedthroughs is based on the hermetic joining of an internal light conduit to zirconia ferrules, ensuring precision alignment to cable connectors. Light loss and back reflection are within UPC standards. Test results exhibit no detectable leaks at 1 x 10-9 cubic centimeters of helium per second. Parts are 100% tested using a helium mass spectrometer ensuring the feedthroughs performance. Insertion loss is typically 0.3dB and maximum light loss is 0.5dB. The new feedthrough body is made from high quality corrosion resistant 316 series stainless steel and the alignment sleeves are precision-machined zirconia. The new units are also available in titanium, hastelloy C-276 and inconel.
Bulkhead feedthroughs are available in various mounting configurations including weld mountable, O-ring and sanitary fitting. The new units offer exceptional reliability and performance in harsh environments and are available for vessel with walls from 1/16 to 1 inch thick.
Greene, Tweed is a leading global manufacturer of high performance seals and engineered components. The company specializes in developing customized solutions for applications in aerospace, medical and biotechnology, fluid handling, industrial, oilfield, and semiconductor industries. Greene, Tweed combines over a century of technical expertise and commercial knowledge to provide customers with engineered solutions for their applications. For additional information, contact Greene, Tweed, 2075 Detwiler Road, P.O. Box 305, Kulpsville, PA 19443 or visit our web site at gtweed.com.
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