{"id":4144,"date":"2026-02-14T09:00:00","date_gmt":"2026-02-14T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4144"},"modified":"2026-03-06T08:02:51","modified_gmt":"2026-03-06T08:02:51","slug":"pn25-ppr-valves-for-solar-heating","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/ar\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/","title":{"rendered":"\u062d\u0644\u0648\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a: \u0645\u062a\u0649 \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u0635\u0645\u0627\u0645\u0627\u062a PN25 PPR \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629"},"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-valve\/pn25-ppr-valves-for-solar-heating\/#Pressure_Temperature_in_Solar_Heating_Systems\" >\u0627\u0644\u0636\u063a\u0637 \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u0633\u062e\u064a\u0646 \u0627\u0644\u0634\u0645\u0633\u064a<\/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-valve\/pn25-ppr-valves-for-solar-heating\/#What_is_the_Difference_Between_a_PN20_and_a_PN_25_Valve\" >\u0645\u0627 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0635\u0645\u0627\u0645 PN20 \u0648\u0635\u0645\u0627\u0645 PN 25\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Failure_Risks_of_Under-Specification\" >\u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u0641\u0634\u0644 \u0627\u0644\u0646\u0627\u062c\u0645\u0629 \u0639\u0646 \u0646\u0642\u0635 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Selecting_Valves_for_Long-Term_Stability\" >\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#DESO_High-Pressure_Valve_Solutions\" >\u062d\u0644\u0648\u0644 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a \u0645\u0646 \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-6\" href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-valve\/pn25-ppr-valves-for-solar-heating\/#Conclusion\" >\u062e\u0627\u062a\u0645\u0629<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u0641\u064a \u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0633\u0628\u0627\u0643\u0629 \u0627\u0644\u062d\u062f\u064a\u062b\u0629\u060c \u062a\u064f\u0639\u062f \u0623\u0646\u0638\u0645\u0629 PPR \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0644\u062a\u0645\u062f\u064a\u062f\u0627\u062a \u0627\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0633\u0627\u062e\u0646\u0629 \u0648\u0627\u0644\u0628\u0627\u0631\u062f\u0629. \u0648\u064a\u062c\u0628 \u0623\u0646 \u064a\u062f\u0639\u0645 \u0647\u0630\u0627 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0627\u0645\u062a\u062b\u0627\u0644 \u0627\u0644\u062f\u0648\u0644\u064a\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u0645\u0639\u064a\u0627\u0631 ISO9001 \u0644\u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u062c\u0648\u062f\u0629. <a href=\"https:\/\/www.desopipe.com\/ar\/certificate\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0645\u0639\u0627\u064a\u064a\u0631 DIN 8077\/8078<\/a>. \u0648\u0647\u0630\u0627 \u064a\u0636\u0645\u0646 \u0623\u0646 \u0643\u0644 \u0623\u0646\u0628\u0648\u0628 \u0648 <strong>\u0635\u0645\u0627\u0645 PPR<\/strong> \u064a\u0641\u064a \u0628\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0636\u063a\u0637 \u0648\u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0639 \u0630\u0644\u0643\u060c \u0644\u0627 \u062a\u062a\u062d\u0645\u0644 \u062c\u0645\u064a\u0639 \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0628\u0648\u0644\u064a \u0628\u0631\u0648\u0628\u064a\u0644\u064a\u0646 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a (PPR) \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629. \u0644\u0630\u0627\u060c \u0639\u0644\u064a\u0643 \u0645\u0631\u0627\u062c\u0639\u0629 \u062a\u0635\u0646\u064a\u0641 &quot;PN&quot; \u0644\u062a\u062d\u062f\u064a\u062f \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0623\u0648 \u0627\u0644\u0635\u0645\u0627\u0645 \u064a\u062a\u062d\u0645\u0644 \u0646\u0637\u0627\u0642 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0623 <strong>\u0635\u0645\u0627\u0645 PN 25<\/strong> \u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 &quot;\u062b\u0642\u064a\u0644 \u0627\u0644\u0648\u0632\u0646&quot; \u0648\u0645\u0635\u0645\u0645 \u0644\u062a\u062d\u0645\u0644 \u0636\u063a\u0637 \u064a\u0635\u0644 \u0625\u0644\u0649 25 \u0628\u0627\u0631 (\u062d\u0648\u0627\u0644\u064a 362 \u0631\u0637\u0644 \u0644\u0643\u0644 \u0628\u0648\u0635\u0629 \u0645\u0631\u0628\u0639\u0629). \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0635\u0645\u0627\u0645 \u0642\u064a\u0627\u0633\u064a \u0628\u062a\u0635\u0646\u064a\u0641 PN16 \u0623\u0648 PN20 \u0644\u062d\u0648\u0636 \u0645\u0637\u0628\u062e \u0639\u0627\u062f\u064a. \u0645\u0639 \u0630\u0644\u0643\u060c \u0625\u0630\u0627 \u0643\u0627\u0646 \u0646\u0638\u0627\u0645 \u0627\u0644\u0633\u0628\u0627\u0643\u0629 \u064a\u062a\u0639\u0631\u0636 \u0644\u0636\u063a\u0637 \u0634\u062f\u064a\u062f\u060c \u0641\u0633\u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u0635\u0645\u0627\u0645\u0627\u062a \u0628\u062a\u0635\u0646\u064a\u0641 PN25. \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629\u060c \u0633\u062a\u062a\u0639\u0631\u0641 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u062f\u064a\u0643.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pressure_Temperature_in_Solar_Heating_Systems\"><\/span>\u0627\u0644\u0636\u063a\u0637 \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u0633\u062e\u064a\u0646 \u0627\u0644\u0634\u0645\u0633\u064a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u0639\u062f\u0651 \u0645\u064f\u062c\u0645\u0651\u0639\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0623\u062c\u0647\u0632\u0629 \u062a\u064f\u0631\u0643\u0651\u0628 \u0645\u0639 \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629. \u0641\u0647\u064a \u062a\u0644\u062a\u0642\u0637 \u0636\u0648\u0621 \u0627\u0644\u0634\u0645\u0633 \u0648\u062a\u062c\u0645\u0639\u0647 \u0648\u062a\u062d\u0648\u0651\u0644\u0647 \u0625\u0644\u0649 \u0637\u0627\u0642\u0629 \u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645. \u0648\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u064f\u0631\u0643\u0651\u0628 \u0641\u064a \u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u0633\u0643\u0646\u064a\u0629 \u0627\u0644\u0634\u0627\u0647\u0642\u0629\u060c \u062d\u064a\u062b \u062a\u0635\u0644 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u062a\u0647\u0627 \u0627\u0644\u0642\u0635\u0648\u0649 \u0625\u0644\u0649 80 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 (176 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a). <strong>\u0635\u0645\u0627\u0645 \u062a\u0633\u062e\u064a\u0646 PPR<\/strong> \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0627\u0644\u062a\u064a \u062a\u062a\u0642\u0644\u0628 \u0628\u064a\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u062d\u064a\u0637\u0629 \u0648\u0646\u0642\u0627\u0637 \u0642\u0631\u064a\u0628\u0629 \u0645\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u063a\u0644\u064a\u0627\u0646.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0623\u062b\u0646\u0627\u0621 \u0627\u0646\u0642\u0637\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a \u0623\u0648 \u062a\u0639\u0637\u0644 \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0641\u064a \u0627\u0644\u0623\u064a\u0627\u0645 \u0634\u062f\u064a\u062f\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u060c \u0642\u062f \u064a\u0635\u0644 \u0627\u0644\u0646\u0638\u0627\u0645 \u0625\u0644\u0649 \u062d\u0627\u0644\u0629 \u0631\u0643\u0648\u062f. \u0648\u0647\u0630\u0627 \u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062f\u0627\u062e\u0644\u064a \u0628\u0633\u0631\u0639\u0629 \u0646\u062a\u064a\u062c\u0629 \u0644\u062a\u0645\u062f\u062f \u0627\u0644\u0633\u0627\u0626\u0644. <strong>\u0635\u0645\u0627\u0645 PPR<\/strong> \u0642\u062f \u062a\u062a\u0644\u0641 \u0625\u0630\u0627 <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u062a\u0635\u0646\u064a\u0641 PN<\/a> \u0644\u0627 \u064a\u0645\u0643\u0646\u0647\u0627 \u062a\u062d\u0645\u0644 \u0630\u0631\u0648\u0629 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a. \u0643\u0645\u0627 \u0623\u0646 \u0642\u062f\u0631\u0629 \u062a\u062d\u0645\u0644 \u0627\u0644\u0636\u063a\u0637 \u0644\u0645\u0627\u062f\u0629 PPR \u062a\u0646\u062e\u0641\u0636 \u0645\u0639 \u0627\u0631\u062a\u0641\u0627\u0639 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a\u060c \u0641\u0625\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 <strong>\u0635\u0645\u0627\u0645 PPR \u0639\u0627\u0644\u064a \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/strong> \u064a\u0633\u0627\u0639\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0627\u0633\u0645\u064a \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0641\u064a \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0647\u0627\u0645\u0634 \u0623\u0645\u0627\u0646 \u0639\u0646\u062f 70 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0623\u0648 95 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629. \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u064a\u064f\u0639\u062f \u0635\u0645\u0627\u0645 25 \u0628\u0627\u0631 \u0627\u0644\u062e\u064a\u0627\u0631 \u0627\u0644\u0623\u0645\u062b\u0644 \u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0633\u062e\u064a\u0646 \u0627\u0644\u0634\u0645\u0633\u064a \u0627\u0644\u062e\u0627\u0635 \u0628\u0643.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_Difference_Between_a_PN20_and_a_PN_25_Valve\"><\/span>\u0645\u0627 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0635\u0645\u0627\u0645 PN20 \u0648\u0635\u0645\u0627\u0645 PN 25\u061f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0643\u0645\u0646 \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0628\u064a\u0646 \u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a PN25 \u0648 PN20 \u0641\u064a <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-pipe-wall-thickness-sdr-vs-pn\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0633\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631<\/a> \u0648\u0646\u0648\u0639 \u0645\u062d\u062f\u062f \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062e\u0627\u0645. A PN20 <strong>\u0635\u0645\u0627\u0645 PPR<\/strong> \u062a\u0645 \u062a\u0635\u0645\u064a\u0645\u0647\u0627 \u0644\u0636\u063a\u0637 \u0639\u0627\u062f\u064a \u064a\u0628\u0644\u063a 2.0 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644 (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. \u0645\u0646 \u0646\u0627\u062d\u064a\u0629 \u0623\u062e\u0631\u0649\u060c \u062a\u0645 \u062a\u0635\u0645\u064a\u0645 \u0648\u062d\u062f\u0629 \u0645\u0635\u0646\u0641\u0629 \u0628\u0636\u063a\u0637 25 \u0628\u0627\u0631 \u0644\u0636\u063a\u0637 2.5 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644 (25 \u0628\u0627\u0631).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0634\u0645\u0633\u064a\u0629\u060c PN 25<strong> <\/strong>\u064a\u0648\u0641\u0631 \u0647\u0630\u0627 \u0627\u0644\u0646\u0638\u0627\u0645 \u062c\u062f\u0631\u0627\u0646\u064b\u0627 \u0647\u064a\u0643\u0644\u064a\u0629 \u0623\u0643\u062b\u0631 \u0633\u0645\u0643\u064b\u0627. \u062a\u0642\u0627\u0648\u0645 \u0647\u0630\u0647 \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u062a\u0634\u0648\u0647 \u0627\u0644\u0628\u0637\u064a\u0621 \u0644\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643 \u062a\u062d\u062a \u062a\u0623\u062b\u064a\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u0633\u062a\u0645\u0631\u064a\u0646. \u062d\u062a\u0649 \u0639\u0646\u062f\u0645\u0627 \u064a\u0639\u0645\u0644 \u0627\u0644\u0646\u0638\u0627\u0645 \u0639\u0646\u062f \u0623\u0639\u0644\u0649 \u0627\u0644\u062d\u062f\u0648\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629\u060c \u0641\u0625\u0646 <strong>\u0635\u0645\u0627\u0645 PPR \u0639\u0627\u0644\u064a \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/strong> \u064a\u0638\u0644 \u0627\u0644\u0635\u0645\u0627\u0645 \u0645\u0627\u0646\u0639\u0627\u064b \u0644\u0644\u062a\u0633\u0631\u0628 \u0639\u0646\u062f \u0648\u0635\u0644\u0627\u062a \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631. \u0648\u064a\u0639\u0648\u062f \u0630\u0644\u0643 \u0625\u0644\u0649 \u0627\u0644\u0643\u062b\u0627\u0641\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0635\u0645\u0627\u0645.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0641\u064a\u0645\u0627 \u064a\u0644\u064a \u062c\u062f\u0648\u0644 \u064a\u0648\u0636\u062d \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0648\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/strong><\/td><td><strong>\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629<\/strong><\/td><td><strong>\u0623\u062f\u0627\u0621 \u0635\u0645\u0627\u0645 PN20 PPR<\/strong><\/td><td><strong>\u0623\u062f\u0627\u0621 \u0635\u0645\u0627\u0645 PN25 PPR (\u0636\u063a\u0637 \u0639\u0627\u0644\u064d)<\/strong><\/td><\/tr><tr><td>\u0623\u0628\u0631\u0627\u062c \u0633\u0643\u0646\u064a\u0629 \u0634\u0627\u0647\u0642\u0629<\/td><td>\u0636\u063a\u0637 \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0633\u0627\u0643\u0646 + \u0645\u0637\u0631\u0642\u0629 \u0627\u0644\u0645\u0627\u0621 (\u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a)<\/td><td>\u064a\u0639\u0645\u0644 \u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u062d\u062f\u0648\u062f\u0647 \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629\u061b \u0648\u0647\u0648 \u0639\u0631\u0636\u0629 \u0644\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0635\u062f\u0645\u0627\u062a \u0628\u062f\u0621 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u0636\u062e\u0629.<\/td><td>\u064a\u0648\u0641\u0631 &quot;\u0647\u0627\u0645\u0634\u064b\u0627&quot; \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u064b\u0627 \u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u062f\u0648\u0646 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u062c\u062f\u0627\u0631.<\/td><\/tr><tr><td>\u0631\u0643\u0648\u062f \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629<\/td><td>\u062d\u0631\u0627\u0631\u0629 \u0634\u062f\u064a\u062f\u0629 (90 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0641\u0623\u0643\u062b\u0631) + \u062a\u0645\u062f\u062f \u0627\u0644\u0633\u0648\u0627\u0626\u0644<\/td><td>\u064a\u062d\u062f\u062b &quot;\u0627\u0646\u062e\u0641\u0627\u0636 \u0643\u0628\u064a\u0631 \u0641\u064a \u0627\u0644\u0642\u062f\u0631\u0629&quot;\u061b \u062d\u064a\u062b \u062a\u0635\u0628\u062d \u0627\u0644\u0645\u0627\u062f\u0629 \u0644\u064a\u0646\u0629 \u0648\u0642\u062f \u062a\u0641\u0634\u0644 \u062a\u062d\u062a \u0636\u063a\u0637 \u0627\u0644\u0628\u062e\u0627\u0631.<\/td><td>\u064a\u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0642\u062f\u0631\u0629 \u062a\u062d\u0645\u0644 \u0636\u063a\u0637 \u0623\u0639\u0644\u0649 \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0642\u0635\u0648\u0649 \u0628\u0641\u0636\u0644 \u0632\u064a\u0627\u062f\u0629 \u0643\u062b\u0627\u0641\u0629 \u0627\u0644\u062c\u062f\u0627\u0631.<\/td><\/tr><tr><td>\u062a\u0633\u062e\u064a\u0646 \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629<\/td><td>\u062d\u0645\u0644 \u062d\u0631\u0627\u0631\u064a \u062b\u0627\u0628\u062a (75 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0641\u0623\u0643\u062b\u0631) + \u062a\u0634\u063a\u064a\u0644 \u0639\u0644\u0649 \u0645\u062f\u0627\u0631 \u0627\u0644\u0633\u0627\u0639\u0629 \u0637\u0648\u0627\u0644 \u0623\u064a\u0627\u0645 \u0627\u0644\u0623\u0633\u0628\u0648\u0639<\/td><td>\u0639\u0631\u0636\u0629 \u0644\u0644\u062a\u0645\u0632\u0642 \u0627\u0644\u0632\u0627\u062d\u0641\u061b \u062a\u062a\u0645\u062f\u062f \u0627\u0644\u062c\u0632\u064a\u0626\u0627\u062a \u0628\u0645\u0631\u0648\u0631 \u0627\u0644\u0648\u0642\u062a \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u062d\u062f\u0648\u062b \u062a\u0633\u0631\u0628\u0627\u062a.<\/td><td>\u0646\u0633\u0628\u0629 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 (SDR) \u0627\u0644\u0623\u0643\u062b\u0631 \u0633\u0645\u0643\u064b\u0627 \u062a\u0642\u0627\u0648\u0645 \u0627\u0644\u062a\u0634\u0648\u0647 \u0627\u0644\u062c\u0632\u064a\u0626\u064a \u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0637\u0648\u064a\u0644 \u0627\u0644\u0623\u0645\u062f.<\/td><\/tr><tr><td>\u0645\u062d\u0637\u0627\u062a \u0636\u062e \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0627\u0644\u0645\u0631\u0643\u0632\u064a\u0629<\/td><td>\u0627\u0644\u0627\u0647\u062a\u0632\u0627\u0632 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a \u0639\u0627\u0644\u064a \u0627\u0644\u062a\u0631\u062f\u062f<\/td><td>\u0642\u062f \u062a\u0624\u062f\u064a \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0631\u0642\u064a\u0642\u0629 \u0625\u0644\u0649 \u062a\u0634\u0648\u0647 \u0627\u0644\u0645\u0642\u0639\u062f \u0648\u062a\u0633\u0631\u0628\u0627\u062a \u0627\u0644\u062a\u062c\u0627\u0648\u0632 \u0627\u0644\u062f\u0627\u062e\u0644\u064a.<\/td><td>\u064a\u0639\u0645\u0644 \u0627\u0644\u0647\u064a\u0643\u0644 \u0627\u0644\u0645\u0642\u0648\u0649 \u0643\u0645\u062e\u0645\u062f \u0644\u0644\u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a\u060c \u0645\u0645\u0627 \u064a\u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0627\u0644\u0645\u062d\u0627\u0630\u0627\u0629 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0627\u0644\u0645\u062b\u0627\u0644\u064a\u0629.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Failure_Risks_of_Under-Specification\"><\/span>\u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u0641\u0634\u0644 \u0627\u0644\u0646\u0627\u062c\u0645\u0629 \u0639\u0646 \u0646\u0642\u0635 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a\u060c \u0627\u062e\u062a\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0645\u0648\u0635\u0649 \u0628\u0647 \u0630\u0648 \u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0627\u0633\u0645\u064a \u0627\u0644\u0645\u0646\u0627\u0633\u0628. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0635\u0645\u0627\u0645 \u0630\u064a \u062a\u0635\u0646\u064a\u0641 \u0645\u0646\u062e\u0641\u0636 \u064a\u064f\u0639\u0631\u0651\u0636 \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0644\u0645\u062e\u0627\u0637\u0631 \u0639\u062f\u064a\u062f\u0629\u060c \u0645\u0646\u0647\u0627:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u062a\u0645\u0632\u0642 \u0627\u0644\u0632\u062d\u0641:<\/strong> \u0633\u062a\u0638\u0647\u0631 \u062a\u0634\u0642\u0642\u0627\u062a \u0645\u062c\u0647\u0631\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u0645\u0646 \u0639\u0645\u0631\u0647\u0627 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u064a. \u0648\u064a\u0646\u062a\u062c \u0647\u0630\u0627 \u0639\u0646 \u0627\u0644\u062a\u0639\u0631\u0636 \u0627\u0644\u0645\u0637\u0648\u0644 \u0644\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629.&nbsp;<\/li>\n\n\n\n<li><strong>\u0636\u0639\u0641 \u0627\u0644\u0645\u0641\u0627\u0635\u0644:<\/strong> \u064a\u0624\u062f\u064a \u0627\u0644\u062a\u0639\u0631\u0636 \u0627\u0644\u0645\u0637\u0648\u0644 \u0644\u0644\u062d\u0631\u0627\u0631\u0629 \u0623\u064a\u0636\u064b\u0627 \u0625\u0644\u0649 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a. \u0648\u0639\u0646\u062f \u062a\u0643\u0631\u0627\u0631 \u0647\u0630\u0647 \u0627\u0644\u062f\u0648\u0631\u0629\u060c \u0641\u0625\u0646\u0647\u0627 \u062a\u0636\u0639 \u0636\u063a\u0637\u064b\u0627 \u0647\u0627\u0626\u0644\u0627\u064b \u0639\u0644\u0649 \u0631\u0627\u0628\u0637\u0629 \u0627\u0644\u0627\u0646\u0635\u0647\u0627\u0631 \u0628\u064a\u0646 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0648 <strong>\u0635\u0645\u0627\u0645 \u062a\u0633\u062e\u064a\u0646 PPR.&nbsp;<\/strong><\/li>\n\n\n\n<li><strong>\u0648\u0642\u062a \u062a\u0639\u0637\u0644 \u0627\u0644\u0646\u0638\u0627\u0645: <\/strong>\u063a\u0627\u0644\u0628\u0627\u064b \u0645\u0627 \u064a\u0643\u0648\u0646 \u0633\u0628\u0628 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0648\u062a\u0644\u0641 \u0627\u0644\u0645\u062c\u0645\u0639 \u0647\u0648 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0635\u0645\u0627\u0645\u0627\u062a \u0630\u0627\u062a \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u063a\u064a\u0631 \u0645\u0646\u0627\u0633\u0628\u0629. \u0648\u0647\u0630\u0647 \u063a\u0627\u0644\u0628\u0627\u064b \u0645\u0627 \u062a\u0643\u0648\u0646 \u0646\u0642\u0627\u0637 \u0627\u0644\u0636\u0639\u0641 \u0627\u0644\u0634\u0627\u0626\u0639\u0629.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0625\u0645\u0643\u0627\u0646 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u062a\u0648\u0641\u064a\u0631 \u0647\u0627\u0645\u0634 \u0623\u0645\u0627\u0646 \u0644\u0645\u0648\u0627\u062c\u0647\u0629 \u0647\u0630\u0647 \u0627\u0644\u0645\u0634\u0643\u0644\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0641\u064a \u0627\u0644\u0635\u0646\u0627\u0639\u0629. \u062a\u062d\u062f\u064a\u062f \u0635\u0645\u0627\u0645 \u0628\u0636\u063a\u0637 25 \u0628\u0627\u0631.<strong> <\/strong>\u064a\u0636\u0645\u0646 \u0630\u0644\u0643 \u0627\u0633\u062a\u0645\u0631\u0627\u0631 \u0627\u0644\u0646\u0638\u0627\u0645 \u0644\u0623\u0643\u062b\u0631 \u0645\u0646 25 \u0639\u0627\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u062e\u062f\u0645\u0629.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selecting_Valves_for_Long-Term_Stability\"><\/span>\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0627\u0645\u062a\u062b\u0627\u0644 \u0644\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u062f\u0648\u0644\u064a\u0629 \u0645\u062b\u0644 DIN 8077\/8078 \u0623\u0648 ISO 15874. \u0648\u0647\u0630\u0627 \u0634\u0631\u0637 \u0623\u0633\u0627\u0633\u064a \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 <strong>\u0635\u0645\u0627\u0645 \u062a\u0633\u062e\u064a\u0646 PPR.<\/strong> \u062a\u062d\u062f\u062f \u0647\u0630\u0647 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0645\u062b\u0644 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0648\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0636\u063a\u0637.&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0623 <strong>\u0635\u0645\u0627\u0645 PPR \u0639\u0627\u0644\u064a \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/strong> \u064a\u062c\u0628 \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u062a\u0641\u0627\u0635\u064a\u0644 \u0627\u0644\u0645\u062d\u062f\u062f\u0629 <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/ppr-pipe\/ppr-pipe-sizes-and-specifications-guide-for-buyer\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0646\u0633\u0628\u0629 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 (SDR)<\/a> \u0646\u0638\u0627\u0645 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628. \u0645\u0633\u062a\u0642\u0631 <strong>\u0635\u0645\u0627\u0645 PPR<\/strong> \u064a\u0646\u0628\u063a\u064a \u0623\u0646 \u062a\u062a\u0636\u0645\u0646 \u0623\u064a\u0636\u0627\u064b \u062d\u0634\u0648\u0627\u062a \u0645\u0646 \u0633\u0628\u064a\u0643\u0629 \u0627\u0644\u0646\u062d\u0627\u0633 \u0627\u0644\u0623\u0635\u0641\u0631 CW617N \u0644\u0644\u0648\u0635\u0644\u0627\u062a \u0627\u0644\u0645\u0644\u0648\u0644\u0628\u0629. \u0647\u0630\u0627 \u064a\u0645\u0646\u0639 \u0627\u0644\u062a\u0622\u0643\u0644 \u0627\u0644\u062c\u0644\u0641\u0627\u0646\u064a \u0648\u064a\u0636\u0645\u0646 \u062a\u0631\u0643\u064a\u0628\u0627\u064b \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0627\u064b \u0645\u062d\u0643\u0645\u0627\u064b \u0645\u0639 \u0645\u0634\u0639\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u062f\u0646.&nbsp;<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>\u062a\u0633\u0644\u064a\u0637 \u0627\u0644\u0636\u0648\u0621 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c \u0627\u0644\u0628\u0637\u0644<\/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\/ar\/product\/plastic-ball-valve-with-brass-core-ii\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/03\/Plastic-ball-valve-with-brass-core-II.jpg\" alt=\"\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u0635\u0645\u0627\u0645 \u0643\u0631\u0629 \u0628\u0644\u0627\u0633\u062a\u064a\u0643\u064a \u0645\u0639 \u0642\u0644\u0628 \u0646\u062d\u0627\u0633\u064a II<\/div>\n    <div class=\"hero-description\">\n\u0646\u0637\u0627\u0642 \u0627\u0644\u062d\u062c\u0645: DN20\u2013DN32 (20 \u0645\u0645\u201363 \u0645\u0645).<br>\n\n\u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0636\u063a\u0637: PN25 (\u062d\u062a\u0649 2.5 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644).\n\n <\/div>\n    <span class=\"hero-link\">\u0639\u0631\u0636 \u0627\u0644\u0645\u0646\u062a\u062c<\/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=\"DESO_High-Pressure_Valve_Solutions\"><\/span>\u062d\u0644\u0648\u0644 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a \u0645\u0646 \u062f\u064a\u0633\u0648<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062a\u062e\u0635\u0635 \u0634\u0631\u0643\u0629 DESO\u060c \u0625\u062d\u062f\u0649 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0644\u0623\u0646\u0627\u0628\u064a\u0628 PPR\u060c \u0641\u064a \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u0642\u0648\u0627\u0629. <strong>\u0635\u0645\u0627\u0645 PN 25<\/strong> \u0648\u062d\u062f\u0627\u062a\u0646\u0627. <strong>\u0635\u0645\u0627\u0645 PPR \u0639\u0627\u0644\u064a \u0627\u0644\u062d\u0631\u0627\u0631\u0629<\/strong> \u0635\u064f\u0645\u0645 \u0647\u0630\u0627 \u0627\u0644\u062e\u0637 \u062e\u0635\u064a\u0635\u064b\u0627 \u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629. \u0648\u064a\u0633\u062a\u062e\u062f\u0645\u0648\u0646 \u0628\u0637\u0627\u0631\u064a\u0627\u062a Borealis 100% \u0623\u0648 Hyosung. <a href=\"https:\/\/www.desopipe.com\/ar\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0645\u0648\u0627\u062f \u062e\u0627\u0645<\/a> \u0644\u0636\u0645\u0627\u0646 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644 <strong>\u0635\u0645\u0627\u0645 \u062a\u0633\u062e\u064a\u0646 PPR<\/strong> \u064a\u064f\u062e\u062a\u0628\u0631 \u0627\u0644\u0646\u0638\u0627\u0645 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 95 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0644\u0645\u062f\u0629 1000 \u0633\u0627\u0639\u0629\u060c \u0645\u0645\u0627 \u064a\u0624\u0643\u062f \u0645\u0642\u0627\u0648\u0645\u062a\u0647 \u0644\u0644\u062a\u062f\u0647\u0648\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0628\u0646\u062f 11.2 \u0645\u0646 \u0645\u0639\u064a\u0627\u0631 ISO 15874 (\u0623\u0648 \u0645\u0627 \u064a\u0645\u0627\u062b\u0644\u0647). \u064a\u0647\u062f\u0641 \u0627\u0644\u0645\u0642\u0627\u0648\u0644\u0648\u0646 \u0625\u0644\u0649 \u062a\u0632\u0648\u064a\u062f \u0627\u0644\u0639\u0645\u0644\u0627\u0621 \u0627\u0644\u0633\u0643\u0646\u064a\u064a\u0646 \u0648\u0627\u0644\u062a\u062c\u0627\u0631\u064a\u064a\u0646 \u0628\u0646\u0638\u0627\u0645 \u0645\u0635\u0645\u0645 \u0644\u0644\u0639\u0645\u0644 \u0639\u0646\u062f \u0636\u063a\u0637 25 \u0628\u0627\u0631. \u0648\u0628\u0641\u0636\u0644 \u0627\u0633\u062a\u064a\u0641\u0627\u0621 \u0647\u0630\u0647 \u0627\u0644\u0634\u0631\u0648\u0637\u060c \u064a\u062a\u0645 \u062a\u062c\u0646\u0628 \u0627\u0644\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0625\u0639\u0627\u062f\u0629 \u0627\u0644\u0639\u0645\u0644 \u0623\u0648 \u0637\u0644\u0628 \u0627\u0644\u0635\u064a\u0627\u0646\u0629.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>\u062e\u0627\u062a\u0645\u0629<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u062e\u062a\u064a\u0627\u0631 <strong>\u0635\u0645\u0627\u0645 PN 25<\/strong> \u064a\u064f\u0639\u062f\u0651 \u0647\u0630\u0627 \u0625\u062c\u0631\u0627\u0621\u064b \u0627\u0633\u062a\u0628\u0627\u0642\u064a\u064b\u0627 \u0644\u0636\u0645\u0627\u0646 \u0633\u0644\u0627\u0645\u0629 \u0648\u0643\u0641\u0627\u0621\u0629 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629. \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0646\u0638\u0627\u0645 \u0627\u0644\u0633\u0628\u0627\u0643\u0629. <strong>\u0635\u0645\u0627\u0645 PPR <\/strong>\u0642\u062f \u064a\u0643\u0648\u0646 \u0647\u0630\u0627 \u0643\u0627\u0641\u064a\u064b\u0627 \u0644\u0623\u0639\u0645\u0627\u0644 \u0627\u0644\u0633\u0628\u0627\u0643\u0629 \u0627\u0644\u0639\u0627\u062f\u064a\u0629\u060c \u0644\u0643\u0646 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u062a\u062a\u0637\u0644\u0628 \u0635\u0645\u0627\u0645\u064b\u0627 \u0623\u0643\u062b\u0631 \u0645\u062a\u0627\u0646\u0629. \u0645\u0646 \u062e\u0644\u0627\u0644 \u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0635\u062d\u064a\u062d <strong>\u0635\u0645\u0627\u0645 \u062a\u0633\u062e\u064a\u0646 PPR\u060c, <\/strong>\u064a\u0645\u0643\u0646\u0643 \u0623\u0646 \u062a\u0637\u0645\u0626\u0646 \u0625\u0644\u0649 \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0646\u0638\u0627\u0645 \u0648\u0643\u0641\u0627\u0621\u062a\u0647 \u0648\u0639\u0645\u0631\u0647 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u064a \u0627\u0644\u0645\u0639\u062a\u0645\u062f \u0644\u0645\u062f\u0629 25 \u0639\u0627\u0645\u064b\u0627.<\/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>In the modern plumbing industry, PPR systems are the standard material for hot and cold water plumbing. This standard must be backed by international compliance, including<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4245,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-4144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ppr-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Valve PN25 for High-Pressure Solar Heating | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn why a high temperature PPR valve is required for solar heating and why a PN 25 valve is required to ensure thermal stability, creep rupture resistance, and a 25-year system service life.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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