{"id":15231,"date":"2020-11-05T20:27:53","date_gmt":"2020-11-05T16:57:53","guid":{"rendered":"https:\/\/vacuumpumps.ir\/?p=15231"},"modified":"2025-05-16T20:19:15","modified_gmt":"2025-05-16T15:49:15","slug":"proper-maintenance-of-oilseal-high-vacuum-pumps","status":"publish","type":"post","link":"https:\/\/asiavacuumpumps.com\/asia\/proper-maintenance-of-oilseal-high-vacuum-pumps\/","title":{"rendered":"Proper Maintenance of OilSeal High Vacuum Pumps"},"content":{"rendered":"<h1 style=\"text-align: left;\"><a href=\"https:\/\/vacuumpumps.ir\">Proper Maintenance of OilSeal High Vacuum Pumps<\/a><\/h1>\n<p style=\"text-align: left;\">Practical, step-by-step instructions for oil changes and<br \/>\npower flushes<br \/>\nJohn L. Brock, Sales Engineer<br \/>\nWelch Vacuum Pumps, a Gardner Denver Product<br \/>\nProperly maintained vacuum pumps will provide many<br \/>\nyears of reliable, maximized performance. This article<br \/>\naddresses simple ways to maintain such vacuum<br \/>\npumps and options for what to do when pump<br \/>\nperformance is compromised due to oil contamination<br \/>\nand degradation.<br \/>\nPrinciples of Operation<br \/>\nOil-Seal, Rotary Vane vacuum pumps pull millitorr-level<br \/>\nvacuum (\u2018high vacuum\u201d) by sweeping intake air and<br \/>\nvapors from the intake port around to the exhaust port.<\/p>\n<p style=\"text-align: left;\">Note in the diagram above how the rotor is offset in the<br \/>\nchamber, or \u201cstator\u201d. The rotor is set with only 1\/1000\u201d<br \/>\nclearance from the top of the stator. Vacuum pump oil<br \/>\nseals this tiny gap and prevents regurgitation of the<br \/>\nairflow. For this reason this technology is referred to as<br \/>\n\u201coil seal, rotary vane\u201d vacuum pumps. Vacuum pump<br \/>\noil also lubricates the vanes, which are spring loaded<br \/>\nso they always push to the inside wall of the stator,<br \/>\nallowing for very efficient sweeping action. In a \u201ctwo<br \/>\nstage\u201d pump, the exhaust from the first stage chamber<br \/>\nis fed into the intake of the second stage and lowers<br \/>\nthe vacuum level achieved down to, or below, 1 millitorr<br \/>\n(\u06f1 X 10-3 mm Hg) residual pressure.<br \/>\nWhen a vacuum pump is first evacuating, the oil vapor<br \/>\npressure is high enough that a visible amount of oil<\/p>\n<p><a href=\"https:\/\/asiavacuumpumps.com\/asia\/what-are-vacuum-thin-films\/\">WHAT ARE VACUUM THIN FILMS?<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/what-is-vacuum-mass-spectrometry\/\">WHAT IS VACUUM MASS SPECTROMETRY?<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/innovative-vacuum-and-leak-detection-solutions\/\">Innovative Vacuum and Leak Detection Solutions<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/dry-oil-less-vacuum-pumps-rotary-claw-piston-screw-vane\/\">Dry (Oil-less) Vacuum Pumps Rotary Claw \u2013 Piston \u2013 Screw \u2013 Vane<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/accelerate-research-by-tuning-up-vacuum-driven-applications\/\">Accelerate Research by Tuning Up Vacuum-Driven Applications<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/vacuum-pump-technology\/\">Vacuum Pump Technology<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/proper-maintenance-of-oilseal-high-vacuum-pumps\/\">Proper Maintenance of OilSeal High Vacuum Pumps<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/6-questions-you-should-ask-when-buying-a-vacuum-pump\/\">\u06f6 Questions You Should Ask When Buying a Vacuum Pump<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/evolution-of-the-laboratory-vacuum-pump\/\">Evolution Of The Laboratory Vacuum Pump<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/succeed-at-vacuum-system-troubleshooting\/\">Succeed at Vacuum System Troubleshooting<\/a><br \/>\n<a href=\"https:\/\/asiavacuumpumps.com\/asia\/13-common-factors-that-affect-pump-life\/\">\u06f1\u06f3 Common Factors that Affect Pump Life<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proper Maintenance of OilSeal High Vacuum Pumps Practical, step-by-step instructions for oil changes and power flushes John L. Brock, Sales Engineer Welch Vacuum Pumps, a Gardner Denver Product Properly maintained vacuum pumps will provide many years of reliable, maximized performance. This article addresses simple ways to maintain such vacuum pumps and options for what to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22637,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-15231","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2","wpbf-post"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\r\n<title>Proper Maintenance of OilSeal High Vacuum Pumps - \u067e\u0645\u067e \u0648\u06a9\u06cc\u0648\u0645 \u0622\u0628\u06cc<\/title>\r\n<meta name=\"description\" content=\"Proper Maintenance of OilSeal High Vacuum Pumps WHAT ARE VACUUM THIN FILMS?WHAT IS VACUUM MASS SPECTROMETRY? 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