{"id":9587,"date":"2024-04-30T18:25:38","date_gmt":"2024-04-30T18:25:38","guid":{"rendered":"https:\/\/fgti-distribution.fr\/?page_id=9587"},"modified":"2024-05-21T11:55:06","modified_gmt":"2024-05-21T11:55:06","slug":"membranes-en-pe-uhmw","status":"publish","type":"page","link":"https:\/\/fgti-distribution.fr\/it\/pieces-techniques-sans-pfas-bock\/membranes-en-pe-uhmw\/","title":{"rendered":"Membranes en PE-UHMW"},"content":{"rendered":"

Membranes en PE-UHMW : plus respectueuses de l\u2019environnement<\/h2>\nUne membrane est utilis\u00e9e lorsqu\u2019un joint traditionnel ne convient pas en raison du risque de fuite ou d'usure.\nEx : cas des fluides dans les applications agro-alimentaires \/ pharmaceutiques ou des produits agressifs dans la chimie ou le domaine des peintures.\n

\nLes membranes les plus employ\u00e9es sont celles en caoutchouc comme le HNBR ou le Viton\u00ae, parfois renforc\u00e9es de tissu. \nMais les membranes en PE, bien plus r\u00e9sistantes aux flexions altern\u00e9es, sont plus adapt\u00e9es pour les applications suivantes :\n
    \n
  • pompe \u00e0 membrane pour produits alimentaires,<\/li>\n
  • r\u00e9gulateur de pression \u00e0 membrane pour peinture,<\/li>\n
  • membrane de commutation pour les vannes dans le conditionnement de liquides,<\/li>\n
  • membrane pour compresseur de gaz ou pompe \u00e0 vide.<\/li>\n<\/ul>\n
    \nEn raison du d\u00e9bat omnipr\u00e9sent sur les PFAS, le PE-UHMW remplace de plus en plus le PTFE.<\/div><\/div><\/div><\/div>
    \"Membranes<\/span><\/div>
    \"Membrane<\/span><\/div>
    <\/div><\/div><\/div><\/div><\/div><\/div>
    <\/div>

    Les diff\u00e9rents types de membranes<\/h2>\n
    <\/div>
    \"Membrane<\/span><\/div>
    <\/div><\/div><\/div><\/div>

    1. Membranes r\u00e9alis\u00e9es \u00e0 partir de feuilles de PE-UHMW<\/h3>\nCes membranes sont les plus simples et les moins ch\u00e8res, car issues de feuilles de PE, Elles conviennent plut\u00f4t pour des courses de faible amplitude et n\u00e9cessitent g\u00e9n\u00e9ralement un diam\u00e8tre plus grand pour le montage, Elles sont souvent utilis\u00e9es dans les r\u00e9gulateurs de pression, pour la s\u00e9paration de fluides ou comme support de membrane en \u00e9lastom\u00e8re. <\/div><\/div><\/div><\/div><\/div><\/div>
    \"https:\/\/fgti-distribution.fr\/wp-content\/uploads\/2024\/05\/membrane-emboutie-sans-pfas.jpg\"<\/span><\/div>
    <\/div><\/div><\/div><\/div>

    2. Membranes embouties<\/h3>\nIl est possible d\u2018emboutir des feuilles en PE-UMHV pour fabriquer des diaphragmes. Ces membranes permettent de courses plus longues pour les pompes, soupapes et r\u00e9gulateurs de pression. Les superpositions de couches permettent de d\u00e9tecter les fuites et ainsi d\u2018\u00e9viter la contamination des fluides v\u00e9hicul\u00e9s. Nous pouvons fabriquer \u00e9galement les pi\u00e8ces environnantes - ex. la fixation dans le logement ou bien le noyau de la membrane.<\/div><\/div><\/div><\/div><\/div><\/div>
    \"https:\/\/fgti-distribution.fr\/wp-content\/uploads\/2024\/05\/membrane-usinees-sans-pfas.jpg\"<\/span><\/div>
    <\/div><\/div><\/div><\/div>

    3. Membranes usin\u00e9es en poly\u00e9thyl\u00e8ne de masse mol\u00e9culaire tr\u00e8s \u00e9lev\u00e9e <\/h3>\nLe fait de pouvoir usiner une membrane permet plus de libert\u00e9 dans la conception, notamment l\u2018int\u00e9gration de fonctions connexes. Les frais d\u2018outillage sont ici r\u00e9duits au minimum car il n\u2018y a pas de frais de moule.\nContrairement aux membranes en PTFE, les zones sollicit\u00e9es des pi\u00e8ces en PE-UHMW n\u2018ont pas besoin d\u2018\u00eatre renforc\u00e9es du fait de la grande r\u00e9sistance m\u00e9canique de cette mati\u00e8re.<\/div><\/div><\/div><\/div><\/div><\/div>
    \"https:\/\/fgti-distribution.fr\/wp-content\/uploads\/2024\/05\/membrane-pour-vannes-sans-pfas.jpg\"<\/span><\/div>
    <\/div><\/div><\/div><\/div>

    4. Membranes pour vannes \u00e0 membrane<\/h3>\nElles se distinguent par une conception sans zone de r\u00e9tention, des surfaces anti-adh\u00e9sives, une grande r\u00e9sistance \u00e0 la pression et \u00e0 la fatigue de flexion.\nIl est possible d'int\u00e9grer une entretoise afin d\u2019am\u00e9liorer l'\u00e9tanch\u00e9it\u00e9 statique et dynamique. Un insert filet\u00e9 soud\u00e9 fait g\u00e9n\u00e9ralement le lien avec la commande de la vanne. <\/div><\/div><\/div><\/div><\/div><\/div>


    \nNotre partenaire est en mesure de vous proposer des solutions alternatives ou de nouveaux d\u00e9veloppements \u00e0 un co\u00fbt raisonnable. Il dispose en effet d\u2019outils de production d\u00e9velopp\u00e9s et construits par lui-m\u00eame, comme par ex. des presses \u00e0 chaud et \u00e0 froid.\n\nLes membranes compos\u00e9es d\u2019empilements de diff\u00e9rentes mati\u00e8res comme un insert en caoutchouc \/ tissu \/ PTFE \/ acier peuvent g\u00e9n\u00e9ralement \u00eatre remplac\u00e9es par des membranes usin\u00e9es en PE-1000 sans que leur fonction ne soit alt\u00e9r\u00e9e.\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":9639,"parent":9575,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9587","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nFGTI Distribution - Membranes en PE-UHMW<\/title>\n<meta name=\"description\" content=\"FGTI Distribution - Membranes en PE-UHMW -\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fgti-distribution.fr\/it\/pieces-techniques-sans-pfas-bock\/membranes-en-pe-uhmw\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FGTI Distribution - 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