{"id":{"repo_id":"unt","oai_identifier":"info:ark/67531/metadc2690"},"canonical_url":"https://search.dev.ndltd.org/etd/unt/info:ark/67531/metadc2690","repository":{"repo_id":"unt","name":"University of North Texas","base_url":"https://digital.library.unt.edu/oai/"},"display":{"title":"Effects of a Surface Engineered Metallic Coating on Elastomeric Valve Stem Seal Leakage","abstract":"Valve stem seal leakage is a major source of fugitive emissions, and controlling these emissions can result in added expense in leak detection and repair programs. Elastomeric O-rings can be used as valve stem seals, and O-ring manufacturers recommend lubrication of elastomeric seals to prevent damage and to assure proper sealing. In this research, a metallic coating was applied as a lubricant using a vacuum vapor deposition process to the surface of elastomeric valve stem seals. Valve stem leak measurements were taken to determine if the coated O-rings, alone or with the recommended lubrication, reduced valve stem seal leakage. This research determined that the metallic coating did not reduce valve stem leakage.","abstract_html":"Valve stem seal leakage is a major source of fugitive emissions, and controlling these emissions can result in added expense in leak detection and repair programs. Elastomeric O-rings can be used as valve stem seals, and O-ring manufacturers recommend lubrication of elastomeric seals to prevent damage and to assure proper sealing. In this research, a metallic coating was applied as a lubricant using a vacuum vapor deposition process to the surface of elastomeric valve stem seals. Valve stem leak measurements were taken to determine if the coated O-rings, alone or with the recommended lubrication, reduced valve stem seal leakage. This research determined that the metallic coating did not reduce valve stem leakage.","abstract_has_math":false,"creators":["Taylor, John Abner"],"institution":"University of North Texas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Plummer, Mitty C.","Foster, Phillip R.","Johnson, J. Lynn","Hopkins, Daniel N."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2000,"date_issued":"2000-12","date_published":"2000-12","updated_at":"2026-07-24T05:34:52Z","subjects":["Elastomers.","Seals (Closures)","Metal coating.","lubrication","elastomeric O-rings","seal","valves","deposition"],"languages":["English"],"rights":["Public","Copyright","Taylor, John Abner","Copyright is held by the author, unless otherwise noted. All rights reserved."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 47670348","https://digital.library.unt.edu/ark:/67531/metadc2690/","ark: ark:/67531/metadc2690"],"render_values":[{"text":"oclc: 47670348","href":null,"code":true},{"text":"https://digital.library.unt.edu/ark:/67531/metadc2690/","href":"https://digital.library.unt.edu/ark:/67531/metadc2690/","code":true},{"text":"ark: ark:/67531/metadc2690","href":null,"code":true}]}]},"links":{"outbound_url":"https://doi.org/10.12794/metadc2690","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Plummer, Mitty C.","Foster, Phillip R.","Johnson, J. 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Valve stem leak measurements were taken to determine if the coated O-rings, alone or with the recommended lubrication, reduced valve stem seal leakage. This research determined that the metallic coating did not reduce valve stem leakage."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:title","label":"Title","values":["Effects of a Surface Engineered Metallic Coating on Elastomeric Valve Stem Seal Leakage"]}]}],"canonical_facts":{"dc:contributor":["Plummer, Mitty C.","Foster, Phillip R.","Johnson, J. Lynn","Hopkins, Daniel N."],"dc:creator":["Taylor, John Abner"],"dc:date":["2000-12"],"dc:description":["Valve stem seal leakage is a major source of fugitive emissions, and controlling these emissions can result in added expense in leak detection and repair programs. Elastomeric O-rings can be used as valve stem seals, and O-ring manufacturers recommend lubrication of elastomeric seals to prevent damage and to assure proper sealing. In this research, a metallic coating was applied as a lubricant using a vacuum vapor deposition process to the surface of elastomeric valve stem seals. Valve stem leak measurements were taken to determine if the coated O-rings, alone or with the recommended lubrication, reduced valve stem seal leakage. This research determined that the metallic coating did not reduce valve stem leakage."],"dc:format":["Text"],"dc:identifier":["oclc: 47670348","doi: 10.12794/metadc2690","https://digital.library.unt.edu/ark:/67531/metadc2690/","ark: ark:/67531/metadc2690"],"dc:language":["English"],"dc:publisher":["University of North Texas"],"dc:rights":["Public","Copyright","Taylor, John Abner","Copyright is held by the author, unless otherwise noted. All rights reserved."],"dc:subject":["Elastomers.","Seals (Closures)","Metal coating.","lubrication","elastomeric O-rings","seal","valves","deposition"],"dc:title":["Effects of a Surface Engineered Metallic Coating on Elastomeric Valve Stem Seal Leakage"],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:34:52Z"}