{"id":3884,"date":"2025-12-17T09:00:00","date_gmt":"2025-12-17T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=3884"},"modified":"2025-12-27T05:35:30","modified_gmt":"2025-12-27T05:35:30","slug":"ppr-pipe-welding-hot-fusion-guide","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/","title":{"rendered":"Come funziona la saldatura a fusione a caldo nei sistemi PPR"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommario<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Attiva\/disattiva la tabella dei contenuti\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Attiva\/disattiva<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#What_Hot_Fusion_Welding_Means_for_PPR_Systems\" >Cosa significa la saldatura a fusione a caldo per i sistemi PPR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Why_PPR_Pipes_Are_Made_for_Thermal_Joining\" >Perch\u00e9 i tubi PPR sono realizzati per la giunzione termica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#How_the_Fusion_Process_Works_From_Start_to_Finish\" >Come funziona il processo di fusione dall&#039;inizio alla fine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Temperature_Control_and_Heating_Time_Explained\" >Controllo della temperatura e tempo di riscaldamento spiegati<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Socket_Fusion_and_Butt_Fusion_Compared\" >Confronto tra fusione a bussola e fusione a testa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Barrier_Layer_Design_in_Modern_PPR_Pipes\" >Progettazione dello strato barriera nei moderni tubi PPR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Why_Heating_and_HVAC_Systems_Need_Extra_Testing\" >Perch\u00e9 i sistemi di riscaldamento e climatizzazione necessitano di test aggiuntivi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Common_Fusion_Mistakes_Beginners_Should_Avoid\" >Errori comuni nella fusione che i principianti dovrebbero evitare<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/#Conclusion\" >Conclusione<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">La saldatura a fusione a caldo \u00e8 il metodo standard utilizzato per unire i sistemi di tubazioni in PPR in un&#039;unica rete continua. Funziona riscaldando le superfici del tubo e del raccordo, quindi pressandole insieme in modo che il materiale si leghi come un unico pezzo.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Questo articolo spiega come funziona il processo, perch\u00e9 \u00e8 importante e cosa dovrebbero sapere i principianti. Comprendendo queste nozioni di base, i lettori potranno prendere decisioni migliori per i progetti idraulici, di riscaldamento e di climatizzazione.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Hot_Fusion_Welding_Means_for_PPR_Systems\"><\/span><strong>Cosa significa la saldatura a fusione a caldo per i sistemi PPR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1023\" height=\"549\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34.png\" alt=\"\" class=\"wp-image-3887\" style=\"width:600px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34.png 1023w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-500x268.png 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-300x161.png 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-768x412.png 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-18x10.png 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-140x75.png 140w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-480x258.png 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-34-800x429.png 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1023px) 100vw, 1023px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-fitting\/weld-ppr-pipe-fittings-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">Saldatura a fusione a caldo<\/a> \u00e8 un metodo di giunzione basato sul calore, studiato per materiali termoplastici. In parole povere, il tubo e il raccordo vengono riscaldati fino a quando i loro strati esterni non si ammorbidiscono. Una volta uniti, le superfici fuse si fondono e si raffreddano. Il risultato \u00e8 una giunzione plastica permanente, senza colla o guarnizioni.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Punti chiave:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il giunto diventa parte del tubo<\/li>\n\n\n\n<li>Non \u00e8 coinvolto alcun legame chimico<\/li>\n\n\n\n<li>La resistenza della connessione corrisponde alla parete del tubo<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Questo processo costituisce la spina dorsale dei moderni sistemi di fusione dei tubi in PPR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_PPR_Pipes_Are_Made_for_Thermal_Joining\"><\/span><strong>Perch\u00e9 i tubi PPR sono realizzati per la giunzione termica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Il materiale PPR reagisce in modo prevedibile al calore controllato. Invece di bruciare o screpolarsi, si ammorbidisce in modo uniforme. Questo permette alle superfici di fondersi senza alterarne la struttura interna.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Raffreddandosi, le catene polimeriche si riconnettono, creando una giunzione uniforme e priva di punti deboli. Grazie a questo comportamento, lo stesso principio si applica ai sistemi idraulici, di riscaldamento e industriali che utilizzano metodi di saldatura per tubi in PPR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_the_Fusion_Process_Works_From_Start_to_Finish\"><\/span><strong>Come funziona il processo di fusione dall&#039;inizio alla fine<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1035\" height=\"517\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35.png\" alt=\"\" class=\"wp-image-3888\" style=\"width:600px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35.png 1035w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-500x250.png 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-300x150.png 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-768x384.png 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-18x9.png 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-150x75.png 150w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-480x240.png 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-35-800x400.png 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1035px) 100vw, 1035px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Il processo di fusione segue una sequenza chiara che non dovrebbe mai essere affrettata.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Per prima cosa, il tubo viene tagliato dritto e pulito. Sporco o umidit\u00e0 possono compromettere l&#039;adesione.<\/li>\n\n\n\n<li>Successivamente, l&#039;estremit\u00e0 del tubo e la sede del raccordo vengono riscaldate utilizzando uno strumento di fusione.<\/li>\n\n\n\n<li>Una volta ammorbidite, le parti vengono premute insieme senza rotazione.<\/li>\n\n\n\n<li>\u00a0Infine, il giunto viene tenuto fermo finch\u00e9 non si raffredda da solo.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ogni fase si basa su quella precedente. Saltare o accelerare una fase pu\u00f2 indebolire l&#039;articolazione.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Temperature_Control_and_Heating_Time_Explained\"><\/span><strong>Controllo della temperatura e tempo di riscaldamento spiegati<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"537\" height=\"414\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32.png\" alt=\"\" class=\"wp-image-3885\" style=\"width:600px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32.png 537w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32-500x385.png 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32-300x231.png 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32-16x12.png 16w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32-97x75.png 97w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-32-480x370.png 480w\" sizes=\"auto, (max-width:767px) 480px, 537px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Gli utensili di fusione sono impostati a una temperatura specifica in modo che la superficie del tubo si ammorbidisca uniformemente. Questa temperatura rimane costante per tutte le dimensioni del tubo. Ci\u00f2 che cambia \u00e8 il tempo di riscaldamento.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I tubi pi\u00f9 piccoli impiegano solo pochi secondi. I diametri pi\u00f9 grandi richiedono pi\u00f9 tempo per assorbire il calore. Un calore insufficiente impedisce l&#039;incollaggio. Un calore eccessivo causa deformazioni. Ecco perch\u00e9 la tempistica e il controllo dell&#039;utensile sono fondamentali.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Socket_Fusion_and_Butt_Fusion_Compared\"><\/span><strong>Confronto tra fusione a bussola e fusione a testa<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1033\" height=\"546\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36.png\" alt=\"\" class=\"wp-image-3889\" style=\"width:600px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36.png 1033w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-500x264.png 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-300x159.png 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-768x406.png 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-18x10.png 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-142x75.png 142w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-480x254.png 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-36-800x423.png 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1033px) 100vw, 1033px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Con l&#039;aumentare delle dimensioni dei tubi, i metodi di fusione si adeguano. <a href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-fitting\/threaded-vs-socket-ppr-couplings-key-differences\/\" target=\"_blank\" rel=\"noreferrer noopener\">fusione della presa<\/a> viene utilizzato per diametri pi\u00f9 piccoli. Il raccordo scorre sul tubo durante il riscaldamento. <a href=\"https:\/\/www.desopipe.com\/it\/blog\/ppr-fitting\/butt-fusion-vs-electrofusion\/\" target=\"_blank\" rel=\"noreferrer noopener\">Fusione del sedere<\/a> viene utilizzato per tubi di grandi dimensioni. Entrambe le estremit\u00e0 del tubo vengono riscaldate fino a renderle piatte, quindi pressate insieme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sebbene gli strumenti siano diversi, l&#039;obiettivo rimane lo stesso: calore, pressione e raffreddamento lavorano insieme per formare un giunto unificato.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Barrier_Layer_Design_in_Modern_PPR_Pipes\"><\/span><strong>Progettazione dello strato barriera nei moderni tubi PPR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Alcuni sistemi includono strati barriera per ridurre l&#039;ingresso di ossigeno. Questo \u00e8 importante nei sistemi di riscaldamento a circuito chiuso.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DESO utilizza una struttura di estrusione composita a 5 strati che include la tecnologia di barriera alluminio-ossigeno. Questo strato rallenta il passaggio dell&#039;ossigeno attraverso la parete del tubo. La ridotta esposizione all&#039;ossigeno contribuisce a proteggere i componenti metallici e prolunga la durata del sistema.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Heating_and_HVAC_Systems_Need_Extra_Testing\"><\/span><strong>Perch\u00e9 i sistemi di riscaldamento e climatizzazione necessitano di test aggiuntivi<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gli impianti di riscaldamento e condizionamento (HVAC) sono sottoposti a continui sbalzi di temperatura. Nel tempo, dilatazioni e contrazioni sottopongono i giunti a sollecitazioni.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Per risolvere questo problema, DESO esegue test di permeazione dell&#039;ossigeno e test di invecchiamento a lungo termine. Questi test simulano anni di cicli termici. I risultati confermano che i giunti di fusione rimangono stabili in condizioni operative reali.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Fusion_Mistakes_Beginners_Should_Avoid\"><\/span><strong>Errori comuni nella fusione che i principianti dovrebbero evitare<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1043\" height=\"283\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33.png\" alt=\"\" class=\"wp-image-3886\" style=\"width:600px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33.png 1043w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-500x136.png 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-300x81.png 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-768x208.png 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-18x5.png 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-150x41.png 150w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-480x130.png 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/12\/image-33-800x217.png 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1043px) 100vw, 1043px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Molti problemi derivano da piccoli errori.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La torsione del giunto durante l&#039;assemblaggio interrompe l&#039;incollaggio.<\/li>\n\n\n\n<li>Maneggiare il giunto prima del raffreddamento ne indebolisce la struttura.<\/li>\n\n\n\n<li>Accelerare i tempi di riscaldamento provoca una fusione non uniforme.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Evitare questi errori migliora la coerenza e riduce le rilavorazioni.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusione<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La saldatura per fusione a caldo crea connessioni PPR pulite, stabili e durature se eseguita correttamente. Garantisce un flusso costante, il controllo della pressione e una lunga durata negli impianti idraulici e di riscaldamento. DESO Pipe supporta soluzioni di sistema complete, tra cui: <a href=\"https:\/\/www.desopipe.com\/it\/oem\/\" target=\"_blank\" rel=\"noreferrer noopener\">Opzioni OEM<\/a> per colori personalizzati, marcature e identificazione del sistema. Esplora un <a href=\"https:\/\/www.desopipe.com\/it\/product\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>raccolta di tubi, raccordi e valvole in PPR<\/strong> <\/a>progettati per lavorare insieme e supportare il tuo prossimo progetto.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.desopipe.com\/it\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Richiedi un preventivo gratuito<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Hot fusion welding is the standard method used to join PPR piping systems into one continuous network. It works by heating the pipe and fitting surfaces,<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":3924,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":["post-3884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ppr-pipe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Pipe Fusion: How Hot Welding Works | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn how PPR pipe fusion works, from heat welding basics to fusion steps, temperature control, and system benefits for plumbing and HVAC use.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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