{"id":3991,"date":"2013-02-05T09:56:28","date_gmt":"2013-02-05T07:56:28","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/en\/?p=3991"},"modified":"2019-05-03T12:39:41","modified_gmt":"2019-05-03T10:39:41","slug":"scambiatori-a-piastre-e-guarnizioni-speciali-teflon-gomma-fluorurata","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/3991\/scambiatori-a-piastre-e-guarnizioni-speciali-teflon-gomma-fluorurata\/","title":{"rendered":"Scambiatori a piastre e guarnizioni speciali&#8230;teflon, gomma fluorurata"},"content":{"rendered":"<p>Gli <a href=\"http:\/\/www.tempco.it\/soluzioni\/scambiatori-calore\/\" target=\"_blank\" rel=\"noopener\">scambiatori a piastre<\/a> risultano estremamente efficaci anche in quelle applicazioni che contemplano una <a href=\"http:\/\/www.tempco.it\/soluzioni\/package-unit\/unita-evaporazione-concentrazione-condensazione\/\" target=\"_blank\" rel=\"noopener\" class=\"broken_link\">condensazione o una evaporazione<\/a> di fluidi, tanto \u00e8 vero che vengono comunemente impiegati come evaporatori e condensatori nei gruppi frigoriferi.<\/p>\n<p>Questa loro caratteristica, li rende particolarmente interessanti anche per impieghi in ambito chimico e farmaceutico, come condensatori o concentratori (evaporatori).<\/p>\n<p style=\"text-align: center;\">.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/solvent-recovery.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-thumbnail wp-image-3992 aligncenter\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/solvent-recovery-150x150.jpg\" alt=\"solvent recovery\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><!--more--><\/p>\n<p style=\"text-align: center;\">Il limite che spesso ne preclude l&#8217;impiego in questi ambiti \u00e8 legato alla <a href=\"http:\/\/www.tempco.it\/wp-content\/uploads\/2012\/12\/Chemical_compatibility.pdf\" target=\"_blank\" rel=\"noopener\">resistenza chimica delle guarnizioni<\/a>, rispetto ai fluidi che devono essere condensati o concentrati.<\/p>\n<p>L&#8217;unico materiale che spesso \u00e8 compatibile con i solventi in gioco, risulta essere la gomma fluorurata oppure il teflon.<\/p>\n<p>Mentre la prima ha delle ottime caratteristiche meccaniche di elasticit\u00e0, il secondo non ha ritorno elastico, di conseguenza pu\u00f2 essere utilizzato in modi particolari, ovvero \u00a0come rivestimento di una guarnizione in materiale elastico (tipo EPDM o simili), in pratica queste guarnizioni prendono il nome di &#8220;imbustate in teflon&#8221;.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/IMG_0752.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-thumbnail wp-image-3995\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/IMG_0752-150x150.jpg\" alt=\"condensatore a piastre ispezionabile con guarnizioni in teflon\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Ricordate che questo genere di guarnizioni, ha una bassa resistenza alla pressione (solitamente 6 bar o poco pi\u00f9), tanto che spesso, quando i fluidi sono puliti, si passa a <a href=\"http:\/\/www.tempco.it\/soluzioni\/scambiatori-calore\/inox-inox\/\" target=\"_blank\" rel=\"noopener\" class=\"broken_link\">scambiatori di tipo saldato<\/a>.<\/p>\n<p style=\"text-align: center;\">\u00a0<a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/NICKEL_TCB_004.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-thumbnail wp-image-3997\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2013\/02\/NICKEL_TCB_004-150x150.jpg\" alt=\"TPLATEB welded plate heat exchagners\" width=\"150\" height=\"150\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gli scambiatori a piastre risultano estremamente efficaci anche in quelle applicazioni che contemplano una condensazione o una evaporazione di fluidi, [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,3,58,49],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - 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