{"id":4097,"date":"2026-01-13T09:00:00","date_gmt":"2026-01-13T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4097"},"modified":"2026-02-06T03:44:35","modified_gmt":"2026-02-06T03:44:35","slug":"ppr-pipe-wall-thickness-sdr-vs-pn","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/","title":{"rendered":"Zrozumienie r\u00f3\u017cnicy mi\u0119dzy SDR a PN: Wyb\u00f3r odpowiedniej grubo\u015bci \u015bcianki rury PPR do zastosowa\u0144 przemys\u0142owych"},"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\">Spis tre\u015bci<\/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=\"Prze\u0142\u0105cznik Spisu Tre\u015bci\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">D\u017awignia kolankowa<\/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\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Why_SDR_and_PN_Are_Not_Interchangeable\" >Dlaczego SDR i PN nie s\u0105 zamienne<\/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\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Selecting_Based_on_Operating_Conditions\" >Wyb\u00f3r na podstawie warunk\u00f3w pracy<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Temperature_Derating\" >Obni\u017canie temperatury<\/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\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Surge_Pressure_and_Water_Hammer\" >Ci\u015bnienie uderzeniowe i uderzenie wodne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Chemical_and_Mechanical_Factors\" >Czynniki chemiczne i mechaniczne<\/a><\/li><\/ul><\/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\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Common_Selection_Errors\" >Typowe b\u0142\u0119dy wyboru<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Mismatching_Components_Across_SDR_Classes\" >Niedopasowanie komponent\u00f3w w r\u00f3\u017cnych klasach SDR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Specifying_by_PN_Without_Checking_Temperature\" >Okre\u015blanie wed\u0142ug PN bez sprawdzania temperatury<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Applying_Standard_Fusion_Parameters_to_Thick-Walled_Pipe\" >Stosowanie standardowych parametr\u00f3w \u0142\u0105czenia do rur o grubych \u015bcianach<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Ignoring_Thermal_Expansion_in_Hot_Systems\" >Ignorowanie rozszerzalno\u015bci cieplnej w gor\u0105cych uk\u0142adach<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#DESOs_Manufacturing_Precision_and_Project_Experience\" >Precyzja produkcji i do\u015bwiadczenie projektowe firmy DESO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#What_This_Means_for_Specification\" >Co to oznacza dla specyfikacji<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">SDR mierzy grubo\u015b\u0107 \u015bcianki w stosunku do \u015brednicy rury. PN okre\u015bla ci\u015bnienie nominalne w temperaturze 20\u00b0C. Wyb\u00f3r odpowiedniej grubo\u015bci \u015bcianki instalacji rurowej dla przemys\u0142owych system\u00f3w PPR sprowadza si\u0119 do dopasowania specyfikacji rury do warunk\u00f3w pracy, takich jak temperatura cieczy i ci\u015bnienie szczytowe.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_SDR_and_PN_Are_Not_Interchangeable\"><\/span><strong>Dlaczego SDR i PN nie s\u0105 zamienne<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In\u017cynierowie cz\u0119sto traktuj\u0105 SDR i PN jako to samo. Ale tak nie jest.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SDR (standardowy wsp\u00f3\u0142czynnik wymiar\u00f3w)<\/strong> to geometria. To stosunek \u015brednicy zewn\u0119trznej do grubo\u015bci \u015bcianki (SDR = D\/s). Ni\u017csza warto\u015b\u0107 SDR oznacza grubsz\u0105 \u015bciank\u0119 w stosunku do rozmiaru rury.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PN (ci\u015bnienie nominalne)<\/strong> to wydajno\u015b\u0107 w okre\u015blonej temperaturze. Wskazuje maksymalne ci\u015bnienie w barach, jakie rura wytrzymuje w temperaturze 20\u00b0C przez 50 lat u\u017cytkowania. Rura PN20 PPR ma ci\u015bnienie 20 bar\u00f3w tylko w temperaturze pokojowej.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"532\" height=\"304\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN.webp\" alt=\"\" class=\"wp-image-4099\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN.webp 532w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN-500x286.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN-300x171.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN-18x10.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN-131x75.webp 131w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Understanding-SDR-vs.-PN-480x274.webp 480w\" sizes=\"auto, (max-width:767px) 480px, 532px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ni\u017cszy wsp\u00f3\u0142czynnik SDR oznacza grubsze \u015bcianki i wy\u017csz\u0105 wytrzyma\u0142o\u015b\u0107 na ci\u015bnienie. Rura SDR o wsp\u00f3\u0142czynniku SDR 6 wytrzymuje wy\u017csze ci\u015bnienie ni\u017c rura o wsp\u00f3\u0142czynniku SDR 11. Jednak PN zmienia si\u0119 wraz z temperatur\u0105, podczas gdy SDR pozostaje sta\u0142y.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Klasa SDR<\/strong><\/td><td><strong>Ocena PN<\/strong><\/td><td><strong>Grubo\u015b\u0107 \u015bcianki<\/strong><\/td><td><strong>Podstawowe zastosowanie przemys\u0142owe<\/strong><\/td><\/tr><tr><td>SDR 11<\/td><td>PN10<\/td><td>Cienki<\/td><td>Transport zimnej wody, drena\u017c niskoci\u015bnieniowy<\/td><\/tr><tr><td>SDR 7.4<\/td><td>PN16<\/td><td>\u015aredni<\/td><td>Spr\u0119\u017cone powietrze, umiarkowanie gor\u0105ca woda<\/td><\/tr><tr><td>SDR 6<\/td><td>PN20<\/td><td>Gruby<\/td><td>Wysokoci\u015bnieniowa gor\u0105ca woda, ch\u0142odzenie przemys\u0142owe<\/td><\/tr><tr><td>SDR 5<\/td><td>PN25<\/td><td>Bardzo gruby<\/td><td>Przetwarzanie chemiczne, zasilanie kot\u0142\u00f3w<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">DESO <a href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-sizes-and-specifications-guide-for-buyer\/\" target=\"_blank\" rel=\"noreferrer noopener\">przewodnik po rozmiarach i specyfikacjach<\/a> wymienia wymiary rur PPR we wszystkich klasach SDR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selecting_Based_on_Operating_Conditions\"><\/span><strong>Wyb\u00f3r na podstawie warunk\u00f3w pracy<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dane katalogowe zak\u0142adaj\u0105 temperatur\u0119 20\u00b0C i przep\u0142yw w stanie ustalonym. Systemy przemys\u0142owe nagrzewaj\u0105 si\u0119 bardziej i wyst\u0119puj\u0105 w nich skoki ci\u015bnienia, kt\u00f3rych specyfikacje katalogowe nie uwzgl\u0119dniaj\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Temperature_Derating\"><\/span><strong>Obni\u017canie temperatury<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ten <a href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-pipe-flow-rate-reduce-pressure-loss-in-buildings\/\" target=\"_blank\" rel=\"noreferrer noopener\">ci\u015bnienie znamionowe rury PPR<\/a> Spada wraz ze wzrostem temperatury. Rura PN20 o ci\u015bnieniu 20 bar\u00f3w w temperaturze 20\u00b0C spada do 10,8 bara w temperaturze 70\u00b0C. W temperaturze 80\u00b0C wytrzymuje tylko 8 bar\u00f3w.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Temperatura<\/strong><\/td><td><strong>PN20 Rzeczywista wydajno\u015b\u0107<\/strong><\/td><td><strong>Rzeczywista wydajno\u015b\u0107 PN25<\/strong><\/td><\/tr><tr><td>20\u00b0C<\/td><td>20 bar<\/td><td>25 bar<\/td><\/tr><tr><td>60\u00b0C<\/td><td>12,5 bara<\/td><td>15,6 bara<\/td><\/tr><tr><td>70\u00b0C<\/td><td>10,8 bara<\/td><td>13,5 bara<\/td><\/tr><tr><td>80\u00b0C<\/td><td>8,0 bar\u00f3w<\/td><td>10,0 bar\u00f3w<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Surge_Pressure_and_Water_Hammer\"><\/span><strong>Ci\u015bnienie uderzeniowe i uderzenie wodne<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pompy przemys\u0142owe wytwarzaj\u0105 wstrz\u0105s hydrauliczny podczas rozruchu i zamykania zawor\u00f3w. System pracuj\u0105cy przy ci\u015bnieniu 12 bar\u00f3w w stanie ustalonym mo\u017ce odnotowa\u0107 skoki do 18 bar\u00f3w.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">W systemach podatnych na uderzenia hydrauliczne, nale\u017cy doda\u0107 margines bezpiecze\u0144stwa 50% przy wyborze SDR. Wysokoci\u015bnieniowa rura plastikowa o SDR 6 lub SDR 5 poch\u0142ania przej\u015bciowe impulsy, kt\u00f3re mog\u0142yby rozerwa\u0107 cie\u0144sze \u015bcianki.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chemical_and_Mechanical_Factors\"><\/span><strong>Czynniki chemiczne i mechaniczne<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Agresywne substancje chemiczne z czasem degraduj\u0105 wewn\u0119trzn\u0105 powierzchni\u0119 rury. Grubsze \u015bcianki (ni\u017cszy wsp\u00f3\u0142czynnik SDR) zapewniaj\u0105 odporno\u015b\u0107 na korozj\u0119, co wyd\u0142u\u017ca \u017cywotno\u015b\u0107 rur podczas transportu chemikali\u00f3w.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wibracje i uderzenia zewn\u0119trzne r\u00f3wnie\u017c sprzyjaj\u0105 ni\u017cszemu wsp\u00f3\u0142czynnikowi SDR. Dodatkowa sztywno\u015b\u0107 zapobiega odkszta\u0142ceniom, kt\u00f3re mog\u0142yby spowodowa\u0107 p\u0119kni\u0119cie cie\u0144szej rury.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DESO <a href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/select-ppr-pipe-in-different-conditions\/\">przewodnik wyboru aplikacji<\/a> opisuje wp\u0142yw temperatury, ci\u015bnienia i rodzaju cieczy na specyfikacj\u0119 rur PPR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Selection_Errors\"><\/span><strong>Typowe b\u0142\u0119dy wyboru<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mismatching_Components_Across_SDR_Classes\"><\/span><strong>Niedopasowanie komponent\u00f3w w r\u00f3\u017cnych klasach SDR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Monta\u017c z\u0142\u0105czek PN10 na rurach PN20 tworzy w\u0105skie gard\u0142o. Ca\u0142a linia jest obecnie przystosowana do PN10, poniewa\u017c najs\u0142abszy element wyznacza limit. Z\u0142\u0105czki ulegaj\u0105 awarii jako pierwsze, cz\u0119sto p\u0119kaj\u0105c pod normalnym ci\u015bnieniem roboczym.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Specifying_by_PN_Without_Checking_Temperature\"><\/span><strong>Okre\u015blanie wed\u0142ug PN bez sprawdzania temperatury<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zastosowanie SDR 11 (PN10) do ci\u0105g\u0142ego dostarczania ciep\u0142ej wody wydaje si\u0119 wystarczaj\u0105ce, je\u015bli ci\u015bnienie robocze jest ni\u017csze ni\u017c 10 bar\u00f3w. Jednak w temperaturze 70\u00b0C ta sama rura wytrzymuje ci\u015bnienie zaledwie 5-6 bar\u00f3w. Nast\u0119puje przedwczesne p\u0119kanie.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Applying_Standard_Fusion_Parameters_to_Thick-Walled_Pipe\"><\/span><strong>Stosowanie standardowych parametr\u00f3w \u0142\u0105czenia do rur o grubych \u015bcianach<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Grubsze \u015bcianki wymagaj\u0105 d\u0142u\u017cszego czasu nagrzewania podczas spawania. Technicy stosuj\u0105cy tryb SDR 11 do rur SDR 6 lub SDR 5 tworz\u0105 \u201czimne spoiny\u201d, w kt\u00f3rych materia\u0142 nigdy nie osi\u0105gn\u0105\u0142 pe\u0142nej g\u0142\u0119boko\u015bci stopienia. Po\u0142\u0105czenia te wygl\u0105daj\u0105 na kompletne, ale pod wp\u0142ywem ci\u015bnienia przeciekaj\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ignoring_Thermal_Expansion_in_Hot_Systems\"><\/span><strong>Ignorowanie rozszerzalno\u015bci cieplnej w gor\u0105cych uk\u0142adach<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cie\u0144sze \u015bcianki bardziej rozszerzaj\u0105 si\u0119 pod wp\u0142ywem ciep\u0142a. Standardowa rura PPR w gor\u0105cych p\u0119tlach wije si\u0119 w wykopach, napr\u0119\u017ca po\u0142\u0105czenia i p\u0119ka w punktach po\u0142\u0105cze\u0144. <a href=\"https:\/\/www.desopipe.com\/pl\/blog\/ppr-pipe\/ppr-fiber-composite-pipe-gf-ppr-hot-water-choice\/\" target=\"_blank\" rel=\"noreferrer noopener\">Wzmocnione w\u0142\u00f3knem<\/a> SDR 7.4 zmniejsza ekspansj\u0119 o 70% i utrzymuje pozycj\u0119.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DESOs_Manufacturing_Precision_and_Project_Experience\"><\/span><strong>Precyzja produkcji i do\u015bwiadczenie projektowe firmy DESO<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Firma DESO od ponad dw\u00f3ch dekad dostarcza systemy PPR do zak\u0142ad\u00f3w chemicznych, sieci HVAC, przemys\u0142owych p\u0119tli ch\u0142odniczych i zasilania kot\u0142\u00f3w wysokoci\u015bnieniowych.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Produkcja ni\u017cszego szczebla tworzy \u201ccienkie punkty\u201d, w kt\u00f3rych grubo\u015b\u0107 \u015bcianki w obr\u0119bie tej samej rury jest zr\u00f3\u017cnicowana. Te cienkie punkty ulegaj\u0105 uszkodzeniu w pierwszej kolejno\u015bci, poniewa\u017c \u015bcianka nie wytrzymuje ci\u015bnienia nominalnego w najcie\u0144szym miejscu. Zautomatyzowane wyt\u0142aczanie DESO z wykorzystaniem \u017cywicy dziewiczej Borealis RA130E utrzymuje grubo\u015b\u0107 \u015bcianki zgodnie z tolerancj\u0105 ISO 15874 na ka\u017cdym metrze.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pe\u0142na gama SDR od SDR 11 do SDR 5 dostarczana jest z jednego \u017ar\u00f3d\u0142a, przy zachowaniu sp\u00f3jno\u015bci <a href=\"https:\/\/www.desopipe.com\/pl\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">materia\u0142 rury PPR<\/a> w\u0142a\u015bciwo\u015bci partii po partii. Zesp\u00f3\u0142 in\u017cynier\u00f3w DESO analizuje specyfikacje projektu i rekomenduje klas\u0119 SDR na podstawie temperatury roboczej, ci\u015bnienia i rodzaju cieczy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_This_Means_for_Specification\"><\/span><strong>Co to oznacza dla specyfikacji<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SDR to geometria. PN to ci\u015bnieniowa wytrzyma\u0142o\u015b\u0107 w temperaturze 20\u00b0C. Temperatura obni\u017ca oba parametry. Przy doborze rur PPR do zastosowa\u0144 przemys\u0142owych, nale\u017cy dopasowa\u0107 klas\u0119 SDR do temperatury roboczej, przewidywanych skok\u00f3w ci\u015bnienia i nara\u017cenia na dzia\u0142anie substancji chemicznych. Najs\u0142abszy element w systemie ogranicza ci\u015bnienie znamionowe wszystkich pod\u0142\u0105czonych do niego element\u00f3w.<\/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\/pl\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Uzyskaj bezp\u0142atn\u0105 wycen\u0119<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>SDR measures wall thickness relative to pipe diameter. PN tells you the pressure rating at 20\u00b0C. Choosing the right plumbing wall thickness for industrial PPR systems<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4100,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":["post-4097","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: Choosing the Right Wall Thickness (SDR vs PN) | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn the difference between SDR and PN ratings for PPR pipes. 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