{"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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/","title":{"rendered":"\u0641\u0647\u0645 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 SDR \u0648 PN: \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0645\u0643 \u062c\u062f\u0627\u0631 \u0623\u0646\u0628\u0648\u0628 PPR \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0635\u0646\u0627\u0639\u064a"},"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\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/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=\"\u062a\u0628\u062f\u064a\u0644 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u0628\u062f\u064a\u0644<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Why_SDR_and_PN_Are_Not_Interchangeable\" >\u0644\u0645\u0627\u0630\u0627 \u0644\u0627 \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 SDR \u0648 PN \u0628\u0634\u0643\u0644 \u0645\u062a\u0628\u0627\u062f\u0644<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Selecting_Based_on_Operating_Conditions\" >\u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Temperature_Derating\" >\u062e\u0641\u0636 \u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Surge_Pressure_and_Water_Hammer\" >\u0636\u063a\u0637 \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u0645\u0641\u0627\u062c\u0626 \u0648\u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u0637\u0631\u0642 \u0627\u0644\u0645\u0627\u0626\u064a<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Chemical_and_Mechanical_Factors\" >\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Common_Selection_Errors\" >\u0623\u062e\u0637\u0627\u0621 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Mismatching_Components_Across_SDR_Classes\" >\u0639\u062f\u0645 \u062a\u0637\u0627\u0628\u0642 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0639\u0628\u0631 \u0641\u0626\u0627\u062a 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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Specifying_by_PN_Without_Checking_Temperature\" >\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0646\u062a\u062c \u0628\u0648\u0627\u0633\u0637\u0629 \u0631\u0642\u0645 \u0627\u0644\u0642\u0637\u0639\u0629 \u062f\u0648\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Applying_Standard_Fusion_Parameters_to_Thick-Walled_Pipe\" >\u062a\u0637\u0628\u064a\u0642 \u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0630\u0627\u062a \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0633\u0645\u064a\u0643\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#Ignoring_Thermal_Expansion_in_Hot_Systems\" >\u062a\u062c\u0627\u0647\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0633\u0627\u062e\u0646\u0629<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#DESOs_Manufacturing_Precision_and_Project_Experience\" >\u062f\u0642\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0648\u062e\u0628\u0631\u0629 \u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0644\u062f\u0649 \u0634\u0631\u0643\u0629 \u062f\u064a\u0633\u0648<\/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\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/#What_This_Means_for_Specification\" >\u0645\u0627\u0630\u0627 \u064a\u0639\u0646\u064a \u0647\u0630\u0627 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a\u061f<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u064a\u0642\u064a\u0633 \u0645\u0624\u0634\u0631 SDR \u0633\u064f\u0645\u0643 \u062c\u062f\u0627\u0631 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0646\u0633\u0628\u0629\u064b \u0625\u0644\u0649 \u0642\u0637\u0631\u0647. \u0623\u0645\u0627 \u0645\u0624\u0634\u0631 PN \u0641\u064a\u0634\u064a\u0631 \u0625\u0644\u0649 \u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0636\u063a\u0637 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629. \u0648\u064a\u0639\u062a\u0645\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u064f\u0645\u0643 \u062c\u062f\u0627\u0631 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0644\u0623\u0646\u0638\u0645\u0629 PPR \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0639\u0644\u0649 \u0645\u0637\u0627\u0628\u0642\u0629 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u0639 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u060c \u0645\u062b\u0644 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0633\u0627\u0626\u0644 \u0648\u0636\u063a\u0637 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639.<\/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>\u0644\u0645\u0627\u0630\u0627 \u0644\u0627 \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 SDR \u0648 PN \u0628\u0634\u0643\u0644 \u0645\u062a\u0628\u0627\u062f\u0644<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0643\u062b\u064a\u0631\u0627\u064b \u0645\u0627 \u064a\u062a\u0639\u0627\u0645\u0644 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 \u0645\u0639 SDR \u0648 PN \u0639\u0644\u0649 \u0623\u0646\u0647\u0645\u0627 \u0634\u064a\u0621 \u0648\u0627\u062d\u062f. \u0644\u0643\u0646\u0647\u0645\u0627 \u0644\u064a\u0633\u0627 \u0643\u0630\u0644\u0643.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0646\u0633\u0628\u0629 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 (SDR)<\/strong> \u0647\u064a \u0647\u0646\u062f\u0633\u0629. \u0648\u0647\u064a \u0646\u0633\u0628\u0629 \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062e\u0627\u0631\u062c\u064a \u0625\u0644\u0649 \u0633\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631 (SDR = D\/s). \u064a\u0634\u064a\u0631 \u0627\u0646\u062e\u0641\u0627\u0636 \u0642\u064a\u0645\u0629 SDR \u0625\u0644\u0649 \u0633\u0645\u0643 \u0623\u0643\u0628\u0631 \u0644\u0644\u062c\u062f\u0627\u0631 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u062d\u062c\u0645 \u0627\u0644\u0623\u0646\u0628\u0648\u0628.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PN (\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0627\u0633\u0645\u064a)<\/strong> \u064a\u064f\u0634\u064a\u0631 \u0647\u0630\u0627 \u0625\u0644\u0649 \u0627\u0644\u0623\u062f\u0627\u0621 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0645\u064f\u062d\u062f\u062f\u0629. \u0648\u064a\u064f\u062d\u062f\u062f \u0623\u0642\u0635\u0649 \u0636\u063a\u0637 \u0628\u0627\u0644\u0628\u0627\u0631 \u064a\u062a\u062d\u0645\u0644\u0647 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0644\u0645\u062f\u0629 \u062e\u062f\u0645\u0629 \u062a\u0628\u0644\u063a 50 \u0639\u0627\u0645\u064b\u0627. \u0623\u0646\u0628\u0648\u0628 PN20 PPR \u0645\u064f\u0635\u0645\u0645 \u0644\u062a\u062d\u0645\u0644 \u0636\u063a\u0637 20 \u0628\u0627\u0631 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u063a\u0631\u0641\u0629 \u0641\u0642\u0637.<\/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\">\u0627\u0646\u062e\u0641\u0627\u0636 \u0646\u0633\u0628\u0629 \u0642\u0637\u0631 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0625\u0644\u0649 \u0642\u0637\u0631\u0647 \u0627\u0644\u0642\u064a\u0627\u0633\u064a (SDR) \u064a\u0639\u0646\u064a \u062c\u062f\u0631\u0627\u0646\u064b\u0627 \u0623\u0643\u062b\u0631 \u0633\u0645\u0643\u064b\u0627 \u0648\u0642\u062f\u0631\u0629 \u062a\u062d\u0645\u0644 \u0636\u063a\u0637 \u0623\u0639\u0644\u0649. \u064a\u062a\u062d\u0645\u0644 \u0623\u0646\u0628\u0648\u0628 \u0630\u0648 \u0646\u0633\u0628\u0629 \u0642\u0637\u0631 \u0623\u0646\u0628\u0648\u0628 \u0625\u0644\u0649 \u0642\u0637\u0631 \u0642\u064a\u0627\u0633\u064a 6 \u0636\u063a\u0637\u064b\u0627 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0623\u0646\u0628\u0648\u0628 \u0630\u0648 \u0646\u0633\u0628\u0629 \u0642\u0637\u0631 \u0623\u0646\u0628\u0648\u0628 \u0625\u0644\u0649 \u0642\u0637\u0631 \u0642\u064a\u0627\u0633\u064a 11. \u0644\u0643\u0646 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0627\u0633\u0645\u064a (PN) \u064a\u062a\u063a\u064a\u0631 \u0628\u062a\u063a\u064a\u0631 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0628\u064a\u0646\u0645\u0627 \u062a\u0628\u0642\u0649 \u0646\u0633\u0628\u0629 \u0627\u0644\u0642\u0637\u0631 \u0625\u0644\u0649 \u0642\u0637\u0631 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u062b\u0627\u0628\u062a\u0629.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0641\u0626\u0629 SDR<\/strong><\/td><td><strong>\u062a\u0635\u0646\u064a\u0641 PN<\/strong><\/td><td><strong>\u0633\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631<\/strong><\/td><td><strong>\u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0635\u0646\u0627\u0639\u064a \u0627\u0644\u0623\u0633\u0627\u0633\u064a<\/strong><\/td><\/tr><tr><td>SDR 11<\/td><td>\u0628\u064a \u0625\u0646 10<\/td><td>\u0631\u0641\u064a\u0639<\/td><td>\u0646\u0642\u0644 \u0627\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0628\u0627\u0631\u062f\u0629\u060c \u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u064a\u0627\u0647 \u0628\u0636\u063a\u0637 \u0645\u0646\u062e\u0641\u0636<\/td><\/tr><tr><td>SDR 7.4<\/td><td>PN16<\/td><td>\u0648\u0627\u0633\u0637\u0629<\/td><td>\u0647\u0648\u0627\u0621 \u0645\u0636\u063a\u0648\u0637\u060c \u0645\u0627\u0621 \u0633\u0627\u062e\u0646 \u0645\u0639\u062a\u062f\u0644<\/td><\/tr><tr><td>SDR 6<\/td><td>\u0628\u064a \u0625\u0646 20<\/td><td>\u0633\u0645\u064a\u0643<\/td><td>\u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0633\u0627\u062e\u0646 \u0639\u0627\u0644\u064a \u0627\u0644\u0636\u063a\u0637\u060c \u0627\u0644\u062a\u0628\u0631\u064a\u062f \u0627\u0644\u0635\u0646\u0627\u0639\u064a<\/td><\/tr><tr><td>SDR 5<\/td><td>PN25<\/td><td>\u0633\u0645\u064a\u0643 \u0644\u0644\u063a\u0627\u064a\u0629<\/td><td>\u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629\u060c \u062a\u063a\u0630\u064a\u0629 \u0627\u0644\u063a\u0644\u0627\u064a\u0627\u062a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u062f\u064a\u0633\u0648 <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-pipe-sizes-and-specifications-guide-for-buyer\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0645\u0642\u0627\u0633\u0627\u062a \u0648\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a<\/a> \u064a\u0639\u0631\u0636 \u0647\u0630\u0627 \u0627\u0644\u062c\u062f\u0648\u0644 \u0623\u0628\u0639\u0627\u062f \u0623\u0646\u0627\u0628\u064a\u0628 PPR \u0639\u0628\u0631 \u062c\u0645\u064a\u0639 \u0641\u0626\u0627\u062a SDR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selecting_Based_on_Operating_Conditions\"><\/span><strong>\u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0639\u062a\u0645\u062f \u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0644\u0648\u062c \u0639\u0644\u0649 \u0627\u0641\u062a\u0631\u0627\u0636 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0648\u062a\u062f\u0641\u0642 \u062b\u0627\u0628\u062a. \u062a\u0639\u0645\u0644 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0628\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0623\u0639\u0644\u0649 \u0648\u062a\u0634\u0647\u062f \u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0645\u0641\u0627\u062c\u0626\u0629 \u0641\u064a \u0627\u0644\u0636\u063a\u0637 \u0644\u0627 \u062a\u0623\u062e\u0630\u0647\u0627 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0644\u0648\u062c \u0641\u064a \u0627\u0644\u062d\u0633\u0628\u0627\u0646.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Temperature_Derating\"><\/span><strong>\u062e\u0641\u0636 \u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644 <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-pipe-flow-rate-reduce-pressure-loss-in-buildings\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u062a\u0635\u0646\u064a\u0641 \u0636\u063a\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 PPR<\/a> \u064a\u0646\u062e\u0641\u0636 \u0627\u0644\u0636\u063a\u0637 \u0645\u0639 \u0627\u0631\u062a\u0641\u0627\u0639 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629. \u0623\u0646\u0628\u0648\u0628 PN20 \u0645\u0635\u0645\u0645 \u0644\u062a\u062d\u0645\u0644 \u0636\u063a\u0637 20 \u0628\u0627\u0631 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629\u060c \u064a\u0646\u062e\u0641\u0636 \u0636\u063a\u0637\u0647 \u0625\u0644\u0649 10.8 \u0628\u0627\u0631 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 70 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629. \u0648\u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 80 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629\u060c \u0644\u0627 \u064a\u062a\u062d\u0645\u0644 \u0633\u0648\u0649 \u0636\u063a\u0637 8 \u0628\u0627\u0631.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629<\/strong><\/td><td><strong>\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 PN20<\/strong><\/td><td><strong>\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 PN25<\/strong><\/td><\/tr><tr><td>20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><td>20 \u0628\u0627\u0631<\/td><td>25 \u0628\u0627\u0631<\/td><\/tr><tr><td>60 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><td>12.5 \u0628\u0627\u0631<\/td><td>15.6 \u0628\u0627\u0631<\/td><\/tr><tr><td>70 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><td>10.8 \u0628\u0627\u0631<\/td><td>13.5 \u0628\u0627\u0631<\/td><\/tr><tr><td>80 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><td>8.0 \u0628\u0627\u0631<\/td><td>10.0 \u0628\u0627\u0631<\/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>\u0636\u063a\u0637 \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u0645\u0641\u0627\u062c\u0626 \u0648\u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u0637\u0631\u0642 \u0627\u0644\u0645\u0627\u0626\u064a<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u062d\u062f\u062b \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0635\u062f\u0645\u0629 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u0629 \u0623\u062b\u0646\u0627\u0621 \u0628\u062f\u0621 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0648\u0625\u063a\u0644\u0627\u0642 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a. \u0642\u062f \u064a\u0634\u0647\u062f \u0646\u0638\u0627\u0645 \u064a\u0639\u0645\u0644 \u0628\u0636\u063a\u0637 \u062b\u0627\u0628\u062a \u0642\u062f\u0631\u0647 12 \u0628\u0627\u0631 \u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0645\u0641\u0627\u062c\u0626\u0629 \u062a\u0635\u0644 \u0625\u0644\u0649 18 \u0628\u0627\u0631.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u0639\u0631\u0636\u0629 \u0644\u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u0637\u0631\u0642 \u0627\u0644\u0645\u0627\u0626\u064a\u060c \u0623\u0636\u0641 \u0647\u0627\u0645\u0634 \u0623\u0645\u0627\u0646 50% \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 SDR. \u064a\u0645\u062a\u0635 \u0623\u0646\u0628\u0648\u0628 \u0628\u0644\u0627\u0633\u062a\u064a\u0643\u064a \u0639\u0627\u0644\u064a \u0627\u0644\u0636\u063a\u0637 \u0630\u0648 SDR 6 \u0623\u0648 SDR 5 \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0645\u0641\u0627\u062c\u0626\u0629 \u0627\u0644\u062a\u064a \u0642\u062f \u062a\u062a\u0633\u0628\u0628 \u0641\u064a \u0627\u0646\u0641\u062c\u0627\u0631 \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0631\u0642\u064a\u0642\u0629.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chemical_and_Mechanical_Factors\"><\/span><strong>\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0624\u062f\u064a \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0627\u0644\u0642\u0648\u064a\u0629 \u0625\u0644\u0649 \u062a\u0622\u0643\u0644 \u0627\u0644\u0633\u0637\u062d \u0627\u0644\u062f\u0627\u062e\u0644\u064a \u0644\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0628\u0645\u0631\u0648\u0631 \u0627\u0644\u0648\u0642\u062a. \u062a\u0648\u0641\u0631 \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0633\u0645\u064a\u0643\u0629 (\u0627\u0646\u062e\u0641\u0627\u0636 \u0646\u0633\u0628\u0629 \u0627\u0644\u062a\u0622\u0643\u0644 \u0627\u0644\u0633\u0637\u062d\u064a) \u0647\u0627\u0645\u0634\u064b\u0627 \u0644\u0644\u062a\u0622\u0643\u0644 \u064a\u0637\u064a\u0644 \u0639\u0645\u0631 \u0627\u0644\u062e\u062f\u0645\u0629 \u0641\u064a \u0646\u0642\u0644 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0633\u0627\u0647\u0645 \u0627\u0644\u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a \u0648\u0627\u0644\u0635\u062f\u0645\u0627\u062a \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0623\u064a\u0636\u064b\u0627 \u0641\u064a \u062a\u0642\u0644\u064a\u0644 \u0646\u0633\u0628\u0629 \u0642\u0637\u0631 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0625\u0644\u0649 \u0642\u0637\u0631\u0647. \u0643\u0645\u0627 \u062a\u0645\u0646\u0639 \u0627\u0644\u0635\u0644\u0627\u0628\u0629 \u0627\u0644\u0625\u0636\u0627\u0641\u064a\u0629 \u0627\u0644\u062a\u0634\u0648\u0647 \u0627\u0644\u0630\u064a \u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u062a\u0634\u0642\u0642 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0631\u0642\u064a\u0642\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062f\u064a\u0633\u0648 <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/select-ppr-pipe-in-different-conditions\/\">\u062f\u0644\u064a\u0644 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/a> \u064a\u062a\u0646\u0627\u0648\u0644 \u0647\u0630\u0627 \u0627\u0644\u0642\u0633\u0645 \u0643\u064a\u0641\u064a\u0629 \u062a\u0623\u062b\u064a\u0631 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0627\u0644\u0636\u063a\u0637 \u0648\u0646\u0648\u0639 \u0627\u0644\u0633\u0627\u0626\u0644 \u0639\u0644\u0649 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0623\u0646\u0627\u0628\u064a\u0628 PPR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Selection_Errors\"><\/span><strong>\u0623\u062e\u0637\u0627\u0621 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/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>\u0639\u062f\u0645 \u062a\u0637\u0627\u0628\u0642 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0639\u0628\u0631 \u0641\u0626\u0627\u062a SDR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0624\u062f\u064a \u062a\u0631\u0643\u064a\u0628 \u0648\u0635\u0644\u0627\u062a PN10 \u0639\u0644\u0649 \u0623\u0646\u0627\u0628\u064a\u0628 PN20 \u0625\u0644\u0649 \u062d\u062f\u0648\u062b \u0627\u062e\u062a\u0646\u0627\u0642. \u064a\u0635\u0628\u062d \u0627\u0644\u062e\u0637 \u0628\u0623\u0643\u0645\u0644\u0647 \u0627\u0644\u0622\u0646 \u0645\u0635\u0646\u0641\u064b\u0627 \u0644\u062a\u062d\u0645\u0644 \u0636\u063a\u0637 PN10 \u0644\u0623\u0646 \u0623\u0636\u0639\u0641 \u0645\u0643\u0648\u0646 \u0647\u0648 \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062f \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649. \u062a\u062a\u0639\u0637\u0644 \u0627\u0644\u0648\u0635\u0644\u0627\u062a \u0623\u0648\u0644\u064b\u0627\u060c \u0648\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0646\u0641\u062c\u0631 \u062a\u062d\u062a \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0639\u0627\u062f\u064a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Specifying_by_PN_Without_Checking_Temperature\"><\/span><strong>\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0646\u062a\u062c \u0628\u0648\u0627\u0633\u0637\u0629 \u0631\u0642\u0645 \u0627\u0644\u0642\u0637\u0639\u0629 \u062f\u0648\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0628\u062f\u0648 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0623\u0646\u0628\u0648\u0628 SDR 11 (PN10) \u0644\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0633\u0627\u062e\u0646 \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0645\u0631 \u0645\u0646\u0627\u0633\u0628\u064b\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u0642\u0644 \u0645\u0646 10 \u0628\u0627\u0631. \u0648\u0644\u0643\u0646 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 70 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629\u060c \u0644\u0627 \u064a\u062a\u062d\u0645\u0644 \u0647\u0630\u0627 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0633\u0648\u0649 \u0636\u063a\u0637 \u064a\u062a\u0631\u0627\u0648\u062d \u0628\u064a\u0646 5 \u06486 \u0628\u0627\u0631\u060c \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u062a\u0634\u0642\u0642\u0627\u062a \u0645\u0628\u0643\u0631\u0629.<\/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>\u062a\u0637\u0628\u064a\u0642 \u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0630\u0627\u062a \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0633\u0645\u064a\u0643\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0633\u0645\u064a\u0643\u0629 \u0623\u0648\u0642\u0627\u062a \u062a\u0633\u062e\u064a\u0646 \u0623\u0637\u0648\u0644 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u0644\u062d\u0627\u0645 \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631\u064a. \u064a\u0642\u0648\u0645 \u0627\u0644\u0641\u0646\u064a\u0648\u0646 \u0627\u0644\u0630\u064a\u0646 \u064a\u0637\u0628\u0642\u0648\u0646 \u062a\u0648\u0642\u064a\u062a SDR 11 \u0639\u0644\u0649 \u0623\u0646\u0627\u0628\u064a\u0628 SDR 6 \u0623\u0648 SDR 5 \u0628\u0625\u0646\u0634\u0627\u0621 &quot;\u0644\u062d\u0627\u0645\u0627\u062a \u0628\u0627\u0631\u062f\u0629&quot; \u062d\u064a\u062b \u0644\u0627 \u064a\u0635\u0644 \u0627\u0644\u0645\u0639\u062f\u0646 \u0625\u0644\u0649 \u0639\u0645\u0642 \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631 \u0627\u0644\u0643\u0627\u0645\u0644. \u062a\u0628\u062f\u0648 \u0647\u0630\u0647 \u0627\u0644\u0648\u0635\u0644\u0627\u062a \u0645\u0643\u062a\u0645\u0644\u0629 \u0638\u0627\u0647\u0631\u064a\u064b\u0627\u060c \u0644\u0643\u0646\u0647\u0627 \u062a\u062a\u0633\u0631\u0628 \u062a\u062d\u062a \u0627\u0644\u0636\u063a\u0637.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ignoring_Thermal_Expansion_in_Hot_Systems\"><\/span><strong>\u062a\u062c\u0627\u0647\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0633\u0627\u062e\u0646\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062a\u0645\u062f\u062f \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0631\u0642\u064a\u0642\u0629 \u0628\u0634\u0643\u0644 \u0623\u0643\u0628\u0631 \u062a\u062d\u062a \u062a\u0623\u062b\u064a\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u0629. \u0623\u0646\u0627\u0628\u064a\u0628 PPR \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0641\u064a \u0627\u0644\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u0633\u0627\u062e\u0646\u0629 \u062a\u0646\u062b\u0646\u064a \u0641\u064a \u0627\u0644\u062e\u0646\u0627\u062f\u0642\u060c \u0645\u0645\u0627 \u064a\u064f\u062c\u0647\u062f \u0627\u0644\u0648\u0635\u0644\u0627\u062a\u060c \u0648\u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u062a\u0634\u0642\u0642\u0627\u062a \u0639\u0646\u062f \u0646\u0642\u0627\u0637 \u0627\u0644\u062a\u0648\u0635\u064a\u0644. <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-fiber-composite-pipe-gf-ppr-hot-water-choice\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0645\u062f\u0639\u0645 \u0628\u0627\u0644\u0623\u0644\u064a\u0627\u0641<\/a> \u064a\u0642\u0644\u0644 SDR 7.4 \u0645\u0646 \u0627\u0644\u062a\u0648\u0633\u0639 \u0628\u0645\u0642\u062f\u0627\u0631 70% \u0648\u064a\u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0627\u0644\u0648\u0636\u0639.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DESOs_Manufacturing_Precision_and_Project_Experience\"><\/span><strong>\u062f\u0642\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0648\u062e\u0628\u0631\u0629 \u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0644\u062f\u0649 \u0634\u0631\u0643\u0629 \u062f\u064a\u0633\u0648<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0642\u0627\u0645\u062a \u0634\u0631\u0643\u0629 DESO \u0628\u062a\u0648\u0631\u064a\u062f \u0623\u0646\u0638\u0645\u0629 PPR \u0644\u0644\u0645\u0635\u0627\u0646\u0639 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0648\u0627\u0644\u062a\u0647\u0648\u064a\u0629 \u0648\u062a\u0643\u064a\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621 \u0648\u062d\u0644\u0642\u0627\u062a \u0627\u0644\u062a\u0628\u0631\u064a\u062f \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0648\u062a\u063a\u0630\u064a\u0629 \u0627\u0644\u063a\u0644\u0627\u064a\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0636\u063a\u0637 \u0639\u0644\u0649 \u0645\u062f\u0649 \u0639\u0642\u062f\u064a\u0646 \u0645\u0646 \u0627\u0644\u0632\u0645\u0646.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0624\u062f\u064a \u0627\u0644\u0625\u0646\u062a\u0627\u062c \u0641\u064a \u0627\u0644\u0645\u0631\u0627\u062d\u0644 \u0627\u0644\u0623\u062f\u0646\u0649 \u0625\u0644\u0649 \u0638\u0647\u0648\u0631 &quot;\u0645\u0646\u0627\u0637\u0642 \u0631\u0642\u064a\u0642\u0629&quot; \u062d\u064a\u062b \u064a\u062e\u062a\u0644\u0641 \u0633\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631 \u062f\u0627\u062e\u0644 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0646\u0641\u0633\u0647. \u0648\u062a\u062a\u0639\u0631\u0636 \u0647\u0630\u0647 \u0627\u0644\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u0631\u0642\u064a\u0642\u0629 \u0644\u0644\u062a\u0644\u0641 \u0623\u0648\u0644\u0627\u064b \u0644\u0623\u0646 \u0627\u0644\u062c\u062f\u0627\u0631 \u0644\u0627 \u064a\u062a\u062d\u0645\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0642\u0646\u0646 \u0641\u064a \u0623\u0631\u0642\u0651 \u0623\u062c\u0632\u0627\u0626\u0647. \u0623\u0645\u0627 \u0646\u0638\u0627\u0645 \u0627\u0644\u0628\u062b\u0642 \u0627\u0644\u0622\u0644\u064a \u0645\u0646 DESO \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0631\u0627\u062a\u0646\u062c Borealis RA130E \u0627\u0644\u062e\u0627\u0645\u060c \u0641\u064a\u0636\u0645\u0646 \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0633\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631 \u0636\u0645\u0646 \u0645\u0639\u0627\u064a\u064a\u0631 ISO 15874 \u0639\u0644\u0649 \u0627\u0645\u062a\u062f\u0627\u062f \u0643\u0644 \u0645\u062a\u0631.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u0634\u062d\u0646 \u0645\u062c\u0645\u0648\u0639\u0629 \u0623\u062c\u0647\u0632\u0629 SDR \u0627\u0644\u0643\u0627\u0645\u0644\u0629\u060c \u0645\u0646 SDR 11 \u0625\u0644\u0649 SDR 5\u060c \u0645\u0646 \u0645\u0635\u062f\u0631 \u0648\u0627\u062d\u062f \u0628\u062c\u0648\u062f\u0629 \u0645\u062a\u0633\u0642\u0629. <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0645\u0627\u062f\u0629 \u0623\u0646\u0627\u0628\u064a\u0628 PPR<\/a> \u062a\u062e\u062a\u0644\u0641 \u062e\u0635\u0627\u0626\u0635 \u0643\u0644 \u062f\u0641\u0639\u0629 \u0639\u0646 \u0627\u0644\u0623\u062e\u0631\u0649. \u064a\u0642\u0648\u0645 \u0641\u0631\u064a\u0642 \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0641\u064a \u0634\u0631\u0643\u0629 DESO \u0628\u0645\u0631\u0627\u062c\u0639\u0629 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u064a\u0648\u0635\u064a \u0628\u0641\u0626\u0629 SDR \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0648\u0627\u0644\u0636\u063a\u0637 \u0648\u0646\u0648\u0639 \u0627\u0644\u0633\u0627\u0626\u0644.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_This_Means_for_Specification\"><\/span><strong>\u0645\u0627\u0630\u0627 \u064a\u0639\u0646\u064a \u0647\u0630\u0627 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0645\u062b\u0644 SDR \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629. \u0623\u0645\u0627 PN \u0641\u064a\u0645\u062b\u0644 \u0633\u0639\u0629 \u0627\u0644\u0636\u063a\u0637 \u0639\u0646\u062f 20 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629. \u0648\u062a\u0624\u062b\u0631 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0639\u0644\u0649 \u0643\u0644\u064a\u0647\u0645\u0627. \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0646\u0627\u0628\u064a\u0628 PPR \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629\u060c \u064a\u062c\u0628 \u0645\u0637\u0627\u0628\u0642\u0629 \u0641\u0626\u0629 SDR \u0645\u0639 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u060c \u0648\u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0645\u062a\u0648\u0642\u0639\u0629 \u0641\u064a \u0627\u0644\u0636\u063a\u0637\u060c \u0648\u0627\u0644\u062a\u0639\u0631\u0636 \u0644\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629. \u0648\u064a\u062d\u062f\u062f \u0623\u0636\u0639\u0641 \u0645\u0643\u0648\u0646 \u0641\u064a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u0633\u0639\u0629 \u0627\u0644\u0636\u063a\u0637 \u0644\u062c\u0645\u064a\u0639 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0628\u0647.<\/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\/ar\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">\u0627\u062d\u0635\u0644 \u0639\u0644\u0649 \u0639\u0631\u0636 \u0623\u0633\u0639\u0627\u0631 \u0645\u062c\u0627\u0646\u064a<\/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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