{"id":7383,"date":"2026-06-21T07:05:29","date_gmt":"2026-06-21T07:05:29","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=7383"},"modified":"2026-07-08T16:45:58","modified_gmt":"2026-07-08T16:45:58","slug":"ppr-pipe-temperature-limits","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/","title":{"rendered":"Gi\u1edbi H\u1ea1n Nhi\u1ec7t \u0110\u1ed9 \u1ed0ng PPR: Nhi\u1ec7t \u0110\u1ed9 L\u00e0m Vi\u1ec7c So V\u1edbi \u0110i\u1ec3m Tan Ch\u1ea3y \u0110\u01b0\u1ee3c Gi\u1ea3i Th\u00edch"},"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\">M\u1ee5c l\u1ee5c<\/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=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Why_Do_Temperature_Ratings_Matter\" >T\u1ea1i sao x\u1ebfp h\u1ea1ng nhi\u1ec7t \u0111\u1ed9 l\u1ea1i quan tr\u1ecdng?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Pressure\" >\u00c1p su\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Lifespan\" >Tu\u1ed5i th\u1ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Safety\" >An to\u00e0n<\/a><\/li><\/ul><\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#What_Is_The_Working_Temperature_Of_PPR_Pipe\" >Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a \u1ed1ng PPR l\u00e0 bao nhi\u00eau?<\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#What_Is_The_Melting_Point_Of_PPR\" >\u0110i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a PPR l\u00e0 bao nhi\u00eau?<\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#What_Is_The_Difference_Between_Working_Temperature_And_Melting_Point\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c v\u00e0 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y l\u00e0 g\u00ec?<\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#How_Does_Temperature_Affect_Pressure_Ratings\" >Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u1ebfp h\u1ea1ng \u00e1p su\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/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\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Which_Applications_Match_Each_Temperature_Range\" >\u1ee8ng d\u1ee5ng n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng d\u1ea3i nhi\u1ec7t \u0111\u1ed9?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Cold_Water\" >N\u01b0\u1edbc l\u1ea1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Hot_Water\" >N\u01b0\u1edbc n\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Heating_Systems\" >H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Why_Does_Fiber_Composite_PPR_Perform_Better_In_High-Temperature_Systems\" >T\u1ea1i sao \u1ed1ng PPR s\u1ee3i composite ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n trong h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9 cao?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Can_PPR_Pipes_Be_Glued\" >\u1ed0ng PPR c\u00f3 th\u1ec3 d\u00e1n keo kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Why_Do_Traditional_PVC_Adhesives_Not_Work_On_PPR_Pipes\" >T\u1ea1i sao keo PVC truy\u1ec1n th\u1ed1ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u1ed1ng PPR?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#How_Are_PPR_Pipes_Actually_Joined\" >\u1ed0ng PPR th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Socket_Fusion\" >H\u00e0n \u1ed1ng l\u1ed3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Threaded_Fittings\" >Ph\u1ee5 ki\u1ec7n ren<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Flanged_Connections\" >Flanged Connections<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Are_There_Any_Situations_Where_Adhesives_Are_Used\" >Are There Any Situations Where Adhesives Are Used?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#What_Are_The_Risks_Of_Using_Adhesives_On_PPR_Pipe_Systems\" >What Are The Risks Of Using Adhesives On PPR Pipe Systems?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#What_Are_The_Best_Practices_For_PPR_Pipe_Installation\" >What Are The Best Practices For PPR Pipe Installation?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.desopipe.com\/vi\/blog\/educational-informational\/ppr-pipe-temperature-limits\/#Conclusion\" >Ph\u1ea7n k\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1003\" height=\"537\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1.webp\" alt=\"\" class=\"wp-image-7384\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1.webp 1003w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-500x268.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-300x161.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-768x411.webp 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-18x10.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-140x75.webp 140w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-480x257.webp 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image4-1-800x428.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1003px) 100vw, 1003px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Standard PPR pipe carries water continuously at temperatures up to about 70\u00b0C, with short peaks near 95\u00b0C. Its melting and softening behavior sits far higher, around 130\u00b0C, so the pipe never operates anywhere near that point.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That gap matters. Many buyers confuse the working temperature with the melting point and pick the wrong pipe grade. In this guide, you will learn the difference, how the temperature range of PPR pipe grades affects pressure and lifespan, which pipe suits each application, and how PPR pipes are correctly joined.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Do_Temperature_Ratings_Matter\"><\/span><strong>T\u1ea1i sao x\u1ebfp h\u1ea1ng nhi\u1ec7t \u0111\u1ed9 l\u1ea1i quan tr\u1ecdng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Temperature ratings define how a pipe behaves under real heat and pressure. Ignore them, and you risk leaks, sagging, or early failure. Get them right, and the system lasts decades.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pressure\"><\/span><strong>\u00c1p su\u1ea5t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pressure capacity drops as temperature rises. A pipe rated for 20 bar at 20\u00b0C holds far less at 70\u00b0C. Ratings guide safe pressure selection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lifespan\"><\/span><strong>Tu\u1ed5i th\u1ecd<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PPR follows a creep-based aging curve. Lower temperatures mean slower stress damage. Proper design supports a service life of 50 years or more.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Safety\"><\/span><strong>An to\u00e0n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Overheated pipe softens and deforms. Correct ratings keep joints intact and prevent sudden bursts in occupied buildings.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_The_Working_Temperature_Of_PPR_Pipe\"><\/span><strong>Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a \u1ed1ng PPR l\u00e0 bao nhi\u00eau?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Working temperature is the heat a pipe handles continuously without losing strength over its design life. For standard PPR, this is commonly up to 70\u00b0C, depending on pressure and SDR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The temperature range of the pipe standard grades covers runs roughly from -10\u00b0C to 70\u00b0C in continuous use. Short-term peaks near 95\u00b0C are tolerated for limited periods. This balance gives PPR pipes high temperature resistance suited to hot water service.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The practical PPR pipe maximum temperature for continuous duty is therefore about 70\u00b0C, not the higher peak figures. Designing for the continuous value protects long-term performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_The_Melting_Point_Of_PPR\"><\/span><strong>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a PPR l\u00e0 bao nhi\u00eau?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPR does not have a single sharp melting point like a metal. Instead, it softens gradually as the heat increases. Engineers use the Vicat softening temperature as a reference, which sits around 130\u00b0C for quality raw material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At this point, the polymer becomes soft enough to deform under load. Short disruptions reaching 100\u00b0C can be tolerated without damage. Still, sustained operation near softening would shorten life dramatically.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_The_Difference_Between_Working_Temperature_And_Melting_Point\"><\/span><strong>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c v\u00e0 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Working temperature is a safe, continuous operating limit. The softening or melting region is the physical point where the material loses rigidity. They are not the same, and the gap is intentional.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The table below summarizes the key thresholds for standard PPR.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Parameter<\/strong><\/td><td><strong>Typical Value<\/strong><\/td><td><strong>Ghi ch\u00fa<\/strong><\/td><\/tr><tr><td>Continuous working temperature<\/td><td>Up to ~70\u00b0C<\/td><td>Depends on pressure and SDR<\/td><\/tr><tr><td>Short-term peak<\/td><td>~95\u00b0C<\/td><td>Limited duration only<\/td><\/tr><tr><td>Brief disruption tolerance<\/td><td>~100\u00b0C<\/td><td>Short, occasional spikes<\/td><\/tr><tr><td>Vicat softening temperature<\/td><td>~130\u00b0C<\/td><td>Material begins to deform<\/td><\/tr><tr><td>Socket fusion tool temperature<\/td><td>260\u00b0C \u00b15\u00b0C<\/td><td>For joining, not operation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Notice the fusion temperature is far above operating limits. Heat fusion melts the surface briefly to bond the pipe and fitting, then the joint cools solid.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_Temperature_Affect_Pressure_Ratings\"><\/span><strong>Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u1ebfp h\u1ea1ng \u00e1p su\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Higher temperature lowers allowable pressure. This is called derating. The polymer creeps more under heat, so the safe stress falls.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a PN20 pipe holding 30 bar at 20\u00b0C may carry only about 13 bar at 70\u00b0C. Designers apply derating factors based on temperature, SDR, and service life. A safety factor of 1.25 to 1.5 is standard under ISO 15874.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why a temperature control ppr pipe selection always pairs the operating temperature with the working pressure before choosing a grade.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_Applications_Match_Each_Temperature_Range\"><\/span><strong>\u1ee8ng d\u1ee5ng n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng d\u1ea3i nhi\u1ec7t \u0111\u1ed9?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Matching the pipe to the duty avoids both over-spending and early failure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cold_Water\"><\/span><strong>N\u01b0\u1edbc l\u1ea1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cold potable and chilled lines run near 20\u00b0C. Standard PPR or a thinner SDR grade works well here. A chemical-resistant PPR pipe for water also resists scaling and corrosion in these systems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hot_Water\"><\/span><strong>N\u01b0\u1edbc n\u00f3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Domestic hot water risers run around 55\u00b0C to 60\u00b0C. A higher PN grade handles the heat and pressure. Many hotels and hospitals rely on this for daily supplies.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Heating_Systems\"><\/span><strong>H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HVAC heating loops and radiator connections see sustained heat near 70\u00b0C with peaks above. These need a high-temperature-resistant PPR pipe, often fiber composite or PP-RCT, to control expansion.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Does_Fiber_Composite_PPR_Perform_Better_In_High-Temperature_Systems\"><\/span><strong>T\u1ea1i sao \u1ed1ng PPR s\u1ee3i composite ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n trong h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9 cao?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1008\" height=\"535\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2.webp\" alt=\"\" class=\"wp-image-7385\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2.webp 1008w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-500x265.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-300x159.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-768x408.webp 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-18x10.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-141x75.webp 141w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-480x255.webp 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image2-800x425.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1008px) 100vw, 1008px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Standard PPR expands noticeably when hot. Fiber-reinforced PPR adds a glass fiber middle layer that cuts thermal expansion sharply. This reduces sagging and stress on long runs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PP-RCT raises the bar further. It offers about 25% higher pressure resistance and long-term strength than previous PP-R, with a temperature range of -20\u00b0C to 95\u00b0C. Better creep resistance comes from high-grade polymer raw materials engineered for sustained heat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For high-rise risers and industrial water lines, this means tighter spacing and steadier pressure. <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/product-use-cases\/commercial-ppr-pipe-system\/\" target=\"_blank\" rel=\"noreferrer noopener\">Thi\u1ebft k\u1ebf H\u1ec7 th\u1ed1ng \u1ed0ng PPR Th\u01b0\u01a1ng m\u1ea1i: H\u01b0\u1edbng d\u1eabn K\u1ef9 thu\u1eadt To\u00e0n di\u1ec7n<\/a> explains how to manage this thermal movement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_PPR_Pipes_Be_Glued\"><\/span><strong>\u1ed0ng PPR c\u00f3 th\u1ec3 d\u00e1n keo kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No. PPR pipes are not joined with solvent glue. They are bonded by heat fusion, which melts and fuses the material into one piece.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is a common point of confusion for installers moving from PVC. Understanding why protects your system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Do_Traditional_PVC_Adhesives_Not_Work_On_PPR_Pipes\"><\/span><strong>T\u1ea1i sao keo PVC truy\u1ec1n th\u1ed1ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u1ed1ng PPR?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Xi m\u0103ng dung m\u00f4i ho\u1ea1t \u0111\u1ed9ng tr\u00ean PVC v\u00ec dung m\u00f4i h\u00f2a tan b\u1ec1 m\u1eb7t v\u00e0 h\u00e0n ch\u00fang b\u1eb1ng h\u00f3a h\u1ecdc. Polypropylene ch\u1ed1ng l\u1ea1i c\u00e1c dung m\u00f4i \u0111\u00f3, v\u00ec v\u1eady h\u00f3a h\u1ecdc kh\u00f4ng bao gi\u1edd li\u00ean k\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 l\u00e0m cho \u1ed1ng PPR ch\u1ed1ng h\u00f3a ch\u1ea5t cho n\u01b0\u1edbc b\u1ec1n nh\u01b0 v\u1eady c\u0169ng ng\u0103n c\u1ea3n vi\u1ec7c n\u1ed1i b\u1eb1ng keo. Keo c\u00f3 th\u1ec3 d\u00ednh, nh\u01b0ng n\u00f3 kh\u00f4ng c\u00f3 s\u1ee9c m\u1ea1nh th\u1ef1c s\u1ef1 d\u01b0\u1edbi \u00e1p l\u1ef1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Are_PPR_Pipes_Actually_Joined\"><\/span><strong>\u1ed0ng PPR th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPR d\u1ef1a v\u00e0o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i nhi\u1ec7t t\u1ea1o ra m\u1ed1i n\u1ed1i \u0111\u1ed3ng nh\u1ea5t. Ba ph\u01b0\u01a1ng ph\u00e1p bao g\u1ed3m h\u1ea7u h\u1ebft c\u00e1c d\u1ef1 \u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Socket_Fusion\"><\/span><strong>H\u00e0n \u1ed1ng l\u1ed3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t d\u1ee5ng c\u1ee5 gia nhi\u1ec7t l\u00e0m n\u00f3ng \u0111\u1ea7u \u1ed1ng v\u00e0 \u1ed5 c\u1eafm kh\u1edbp n\u1ed1i \u1edf 260\u00b0C \u00b15\u00b0C. C\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ea9y v\u00e0o nhau v\u00e0 gi\u1eef trong gi\u00e2y l\u00e1t. Th\u1eddi gian gia nhi\u1ec7t t\u1ef7 l\u1ec7 v\u1edbi k\u00edch th\u01b0\u1edbc: kho\u1ea3ng 5 gi\u00e2y cho 20 mm, 7 gi\u00e2y cho 25 mm v\u00e0 8 gi\u00e2y cho 32 mm.<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>S\u1ea3n ph\u1ea9m n\u1ed5i b\u1eadt c\u1ee7a Hero<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins',\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #0066cc;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #004c99;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.desopipe.com\/vi\/product\/ds-63-ppr-sockets-welder-63mm\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/deso.b-cdn.net\/wp-content\/uploads\/2025\/10\/27.-DS-63-PPR-Sockets-Welder-63mm.jpg\" alt=\"M\u00e1y h\u00e0n \u1ed5 c\u1eafm PPR DS-63 63mm\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">M\u00e1y h\u00e0n \u1ed5 c\u1eafm PPR DS-63<\/div>\n    <div class=\"hero-description\">\nKi\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c 260\u00b0C \u00b15\u00b0C cho vi\u1ec7c h\u00e0n \u1ed5 c\u1eafm, h\u1ed7 tr\u1ee3 k\u00edch th\u01b0\u1edbc \u1ed1ng t\u1eeb 20mm \u0111\u1ebfn 63mm, \u0111\u1ea3m b\u1ea3o m\u1ed1i n\u1ed1i \u0111\u1ed3ng nh\u1ea5t nh\u1ea5t qu\u00e1n.  <\/div>\n    <span class=\"hero-link\">Xem s\u1ea3n ph\u1ea9m<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Threaded_Fittings\"><\/span><strong>Ph\u1ee5 ki\u1ec7n ren<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1edbp n\u1ed1i ren c\u00f3 ch\u00e8n \u0111\u1ed3ng thau k\u1ebft n\u1ed1i PPR v\u1edbi \u1ed1ng kim lo\u1ea1i, van ho\u1eb7c ph\u1ee5 ki\u1ec7n. Ch\u00fang cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i an to\u00e0n m\u00e0 kh\u00f4ng c\u1ea7n h\u00e0n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Flanged_Connections\"><\/span><strong>Flanged Connections<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7t b\u00edch ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng k\u00ednh l\u1edbn v\u00e0 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb. Ch\u00fang cho ph\u00e9p th\u00e1o r\u1eddi \u0111\u1ec3 b\u1ea3o tr\u00ec tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng l\u1edbn h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Are_There_Any_Situations_Where_Adhesives_Are_Used\"><\/span><strong>Are There Any Situations Where Adhesives Are Used?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ebfm khi, v\u00e0 kh\u00f4ng bao gi\u1edd cho c\u00e1c m\u1ed1i n\u1ed1i \u00e1p l\u1ef1c k\u1ebft c\u1ea5u. Ch\u1ea5t k\u1ebft d\u00ednh c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n trong vi\u1ec7c \u0111\u00e1nh d\u1ea5u t\u1ea1m th\u1eddi ho\u1eb7c ni\u00eam phong b\u00ean ngo\u00e0i c\u00e1c b\u1ed9 ph\u1eadn kh\u00f4ng li\u00ean quan. Ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a vi\u1ec7c t\u1ea1o ra m\u1ed9t k\u1ebft n\u1ed1i PPR ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_The_Risks_Of_Using_Adhesives_On_PPR_Pipe_Systems\"><\/span><strong>What Are The Risks Of Using Adhesives On PPR Pipe Systems?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng keo tr\u00ean PPR t\u1ea1o ra c\u00e1c \u0111i\u1ec3m y\u1ebfu ti\u1ec1m \u1ea9n. R\u1ee7i ro bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed1i n\u1ed1i b\u1ecb h\u1ecfng d\u01b0\u1edbi \u00e1p l\u1ef1c ho\u1eb7c dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>R\u00f2 r\u1ec9 ch\u1eadm ph\u00eda sau c\u00e1c b\u1ee9c t\u01b0\u1eddng \u0111\u00e3 ho\u00e0n thi\u1ec7n<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 li\u00ean k\u1ebft h\u00f3a h\u1ecdc th\u1ef1c s\u1ef1, b\u1ea5t ch\u1ea5p v\u1ebb ngo\u00e0i b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>K\u1ef3 v\u1ecdng hi\u1ec7u su\u1ea5t b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a v\u00e0 chi ph\u00ed l\u00e0m l\u1ea1i<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e0n v\u1eabn l\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i duy nh\u1ea5t h\u1ee3p l\u00fd cho d\u1ecbch v\u1ee5 \u00e1p l\u1ef1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_The_Best_Practices_For_PPR_Pipe_Installation\"><\/span><strong>What Are The Best Practices For PPR Pipe Installation?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1009\" height=\"546\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1.webp\" alt=\"\" class=\"wp-image-7386\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1.webp 1009w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-500x271.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-300x162.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-768x416.webp 768w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-18x10.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-139x75.webp 139w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-480x260.webp 480w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/07\/image3-1-800x433.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1009px) 100vw, 1009px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c h\u00e0nh t\u1ed1t b\u1ea3o v\u1ec7 c\u1ea3 m\u1ed1i n\u1ed1i v\u00e0 h\u1ec7 th\u1ed1ng l\u00e2u d\u00e0i. Th\u1ef1c hi\u1ec7n theo c\u00e1c b\u01b0\u1edbc n\u00e0y.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cut the pipe square and remove burrs before fusion.<\/li>\n\n\n\n<li>Keep fusion surfaces clean, dry, and oil-free.<\/li>\n\n\n\n<li>Hold the correct heating time for each pipe size.<\/li>\n\n\n\n<li>Below 5\u00b0C, increase heating time to prevent cold fusion defects.<\/li>\n\n\n\n<li>Never twist or realign joints after fusing.<\/li>\n\n\n\n<li>Allow full cooling before pressurizing.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the right branch fittings also helps flow. The <a href=\"https:\/\/www.desopipe.com\/vi\/blog\/ppr-fitting\/y-type-pipe-fitting-vs-equal-tee-hydraulic-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00ea ch\u1eef Y so v\u1edbi T\u00ea \u0110\u1ec1u so v\u1edbi T\u00ea 5 Ng\u00e3: Ph\u1ee5 ki\u1ec7n PPR n\u00e0o cho vi\u1ec7c ph\u00e2n nh\u00e1nh ph\u1ee9c t\u1ea1p?<\/a> guide compares options for complex layouts.<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>S\u1ea3n ph\u1ea9m n\u1ed5i b\u1eadt c\u1ee7a Hero<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins',\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #0066cc;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #004c99;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.desopipe.com\/vi\/product\/standard-ppr-pipe\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/01\/4.webp\" alt=\"b\u00fat m\u00e0u kaywin\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u1ed0ng PPR ti\u00eau chu\u1ea9n<\/div>\n    <div class=\"hero-description\">\u1ed0ng PPR ti\u00eau chu\u1ea9n cung c\u1ea5p gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady cho h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng d\u00e2n d\u1ee5ng, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p.<\/div>\n    <span class=\"hero-link\">Xem s\u1ea3n ph\u1ea9m<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Ph\u1ea7n k\u1ebft lu\u1eadn<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi <a href=\"https:\/\/www.desopipe.com\/vi\/lanrytherm-type-ppr-fitting\/\" type=\"link\" id=\"https:\/\/www.desopipe.com\/lanrytherm-type-ppr-fitting\/\" target=\"_blank\" rel=\"noreferrer noopener\">pipes and fittings<\/a> share the same raw material standard, fusion forms a uniform bond. As a <a href=\"https:\/\/www.desopipe.com\/vi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u00e0 s\u1ea3n xu\u1ea5t \u1ed1ng PPR<\/a> with 20+ years of experience, DESO Pipe produces matched PPR systems for stable joints.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DESO operates 200+ automated machines and 50+ testing devices, holds 60+ patents, and exports to 40+ countries. Products carry <a href=\"https:\/\/www.desopipe.com\/vi\/certificate\/\" target=\"_blank\" rel=\"noreferrer noopener\">CE, WRAS, AENOR, DVGW<\/a>, and ISO 9001, 14001, and 45001 certifications, with compliance to ISO 15874 and DIN 8077\/8078\/16962.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The range supports potable water, HVAC, industrial fluid conveyance, and agricultural irrigation. Explore the full collection and download the <a href=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/01\/Deso-Profile-Catalogue.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Product Catalogue<\/a> to match the right grade to your project.<\/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\/vi\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u1eadn b\u00e1o gi\u00e1 mi\u1ec5n ph\u00ed<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Standard PPR pipe carries water continuously at temperatures up to about 70\u00b0C, with short peaks near 95\u00b0C. Its melting and softening behavior sits far higher, around<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":7384,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-7383","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-educational-informational"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Pipe Temperature Limits: Working Temp vs Melting Point | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn PPR pipe temperature limits, working temperature vs melting point, pressure derating, and safe fusion joining for water, HVAC, and industrial systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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