Annular seal for plug-in connectors
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Article
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2003
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Elsevier Science
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English
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## Long history John Crane developed the first non-contacting, dry-running gas seal 30 years ago, according to Hosanna. He says that since then the Type 28 seals have been used in thousands of applications around the world. Many of the seals have been performing for 10 years or more.