{"id":10409,"date":"2025-03-05T17:57:09","date_gmt":"2025-03-05T17:57:09","guid":{"rendered":"https:\/\/ipsenglobal.com\/?post_type=knowledge-center&#038;p=10409"},"modified":"2026-03-11T17:33:18","modified_gmt":"2026-03-11T17:33:18","slug":"troubleshooting-checklist-diffusion-pump-backstreaming","status":"publish","type":"knowledge-center","link":"https:\/\/ipsenglobal.com\/fr\/knowledge-center\/troubleshooting-checklist-diffusion-pump-backstreaming\/","title":{"rendered":"Liste de contr\u00f4le pour le d\u00e9pannage - Pompe \u00e0 diffusion \u00e0 contre-courant"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Par Jim Grann, directeur technique d'Ipsen<\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113.jpg\" alt=\"vacuum furnace diffusion pump\" class=\"wp-image-3589\" srcset=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113.jpg 1024w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-300x169.jpg 300w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-768x432.jpg 768w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-18x10.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Personne ne veut ouvrir son <a href=\"https:\/\/ipsenglobal.com\/fr\/vacuum-furnaces\/\">four \u00e0 vide<\/a> et voir de l'huile partout. Pompe de diffusion <a href=\"https:\/\/ipsenglobal.com\/fr\/knowledge-center\/diffusion-pumps-backstreaming\/\">backstreaming<\/a> peut \u00eatre frustrant pour les op\u00e9rateurs et parfois difficile \u00e0 diagnostiquer pour le personnel de maintenance. Il peut \u00e9galement avoir un impact sur les processus et les capteurs de jauge \u00e0 vide.<\/p>\n\n\n\n<p>Chaque fois qu'il y a des signes de reflux, il est bon de v\u00e9rifier les suspects habituels. Voici une liste des coupables probables \u00e0 examiner lorsque vous \u00eates confront\u00e9 \u00e0 un refoulement de pompe \u00e0 diffusion :<\/p>\n\n\n<p>\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e L'eau de refroidissement alimentant la pompe de diffusion est-elle \u00e0 une temp\u00e9rature inf\u00e9rieure ou \u00e9gale \u00e0 90\u00b0 F ? (La temp\u00e9rature id\u00e9ale devrait se situer entre 60\u00b0 F et 80\u00b0 F).<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e L'eau de refroidissement sortant de la pompe de diffusion est-elle \u00e0 une temp\u00e9rature sup\u00e9rieure ou \u00e9gale \u00e0 125\u00b0 F ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Les trois phases \u00e9lectriques qui alimentent la pompe de diffusion ont-elles toutes le m\u00eame amp\u00e9rage ? (Si ce n'est pas le cas, il peut s'agir d'un probl\u00e8me de chauffage, de fils de connexion cass\u00e9s, de fusibles grill\u00e9s ou d'un autre probl\u00e8me li\u00e9 au service \u00e9lectrique).<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Quels sont les niveaux d'huile de la pompe de diffusion ?<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Une valeur trop \u00e9lev\u00e9e peut entra\u00eener un refroidissement du syst\u00e8me<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\n\n\n\n<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Si elle est trop basse, le syst\u00e8me fonctionnera \u00e0 chaud<\/li>\n<li>L'un ou l'autre \u00e0 l'extr\u00eame cr\u00e9era des circonstances menant au reflux.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Votre filtre est-il r\u00e9gl\u00e9 sur 90 microns ou plus ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Dans un four froid, le temps de pompage pour passer d'environ 80 microns \u00e0 1 micron dure-t-il plus de 3 minutes ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Avez-vous laiss\u00e9 votre four en pompage \u00e0 vide \u00e9lev\u00e9 \u00e0 froid pendant plus d'une journ\u00e9e ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Une vidange r\u00e9cente a-t-elle \u00e9t\u00e9 effectu\u00e9e avec un fluide diff\u00e9rent, un fluide recycl\u00e9 ou une famille de fluide diff\u00e9rente ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Le si\u00e8ge de la soupape de rugosit\u00e9 fuit-il lorsqu'elle est ferm\u00e9e ?<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Avez-vous test\u00e9 l'\u00e9tanch\u00e9it\u00e9 du four \u00e0 froid et \u00e0 des temp\u00e9ratures maximales ? (Souvent, des fuites apparaissent lorsque le four est chaud et ne sont pas pr\u00e9sentes lorsqu'il est froid, en raison de la dilatation).<\/p>\n<p>\n\n\n\n<\/p>\n<p style=\"padding-left: 40px;\">\u2611\ufe0e Utilisez-vous des fils et des cosses en cuivre ou en acier inoxydable au lieu des fils et cosses en nickel recommand\u00e9s ?<\/p>\n<p>\n\n\n<\/p>\n\n\n<p>Si vous avez parcouru la liste de contr\u00f4le et que vous n'avez toujours pas d\u00e9couvert le probl\u00e8me, il est temps d'appeler un technicien de service Ipsen et de planifier un appel de service. Contactez votre directeur de service r\u00e9gional ou appelez-nous au 1-844-GO-IPSEN (1-844-464-7736).<\/p>\n\n\n\n    <section id=\"button-block_ea561a42b3026b01df4a3a13176e65d7\"\n        class=\"button-custom-block d-block d-lg-inline-block mx-auto me-lg-5 mb-4\">\n        <a class=\"btn btn-outline-secondary\" href=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2025\/02\/Ipsen-Backstreaming-Checklist.pdf\" target=\"_self\">\n            T\u00e9l\u00e9chargez une liste de contr\u00f4le imprimable ici.        <\/a>\n    <\/section>","protected":false},"excerpt":{"rendered":"<p>Par Jim Grann, Directeur Technique d'Ipsen Personne ne souhaite ouvrir la porte de son four \u00e0 vide et voir de l'huile partout. Le reflux de la pompe \u00e0 diffusion peut \u00eatre frustrant pour les op\u00e9rateurs et parfois d\u00e9licat pour les op\u00e9rateurs.<\/p>","protected":false},"author":7,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"_tec_requires_first_save":true,"_searchwp_excluded":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_tribe_blocks_recurrence_rules":"","_tribe_blocks_recurrence_description":"","_tribe_blocks_recurrence_exclusions":"","_ecp_custom_2":"","footnotes":""},"categories":[612,654],"tags":[],"class_list":["post-10409","knowledge-center","type-knowledge-center","status-publish","hentry","category-preventive-maintenance","category-pumping-systems"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Troubleshooting Checklist - Diffusion Pump Backstreaming - Ipsen Global<\/title>\n<meta name=\"description\" content=\"Struggling with diffusion pump backstreaming? 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