{"id":1754,"date":"2019-11-27T09:09:58","date_gmt":"2019-11-27T09:09:58","guid":{"rendered":"http:\/\/nahrab.decodat.com\/?page_id=1754"},"modified":"2021-02-08T08:00:35","modified_gmt":"2021-02-08T08:00:35","slug":"%d8%b4%db%8c%d8%b1-%d9%87%d9%88%d8%a7%db%8c-%d8%ae%d9%84%d8%a7%d8%a1-%d8%b4%da%a9%d9%86","status":"publish","type":"page","link":"https:\/\/en.nahrab.net\/?page_id=1754","title":{"rendered":"Vacuum Breaker Valve"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1754\" class=\"elementor elementor-1754\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-508d481 elementor-section-stretched elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"508d481\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0f57940\" data-id=\"0f57940\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98a8318 elementor-widget elementor-widget-writing-effect-headline\" data-id=\"98a8318\" data-element_type=\"widget\" data-widget_type=\"writing-effect-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t        <h3 class=\"futurio-extra-written-headline\" data-speed=\"50\" data-delay=\"1000\" data-loop=\"1\">\r\n        \r\n                    <span class=\"written-lines\">AIR VALVES<\/span>\r\n        \r\n                <\/h3>\r\n        \t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a07e4ed elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"a07e4ed\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-206755a\" data-id=\"206755a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fb1154f elementor-position-right elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"fb1154f\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img fetchpriority=\"high\" decoding=\"async\" width=\"297\" height=\"297\" src=\"https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/Vacuume-pic.png\" class=\"elementor-animation-grow attachment-medium size-medium wp-image-1760\" alt=\"\u0634\u06cc\u0631 \u0647\u0648\u0627\u06cc \u062e\u0644\u0627\u0621 \u0634\u06a9\u0646\" srcset=\"https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/Vacuume-pic.png 297w, https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/Vacuume-pic-150x150.png 150w, https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/Vacuume-pic-100x100.png 100w, https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/Vacuume-pic-64x64.png 64w\" sizes=\"(max-width: 297px) 100vw, 297px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">Vacuum Breaker Valve<\/h3><p class=\"elementor-image-box-description\">\nDN:100-1000 mm\n|\nPN: 10-63 bar\n\n\n<p style=\"text-align: justify;\">Air must be injected into the system in large quantities for any reason, such as pipe breaking and accidental discharge, to prevent lines from being damaged and crumpled during uncontrolled fluid outflow. Nahrab Gostar vacuum breaker valve is installed after the Excess Flow Shut \u2013 Off Valves and injects the required air into the pipeline to eliminate the vacuum. The operation of this valve is such that under normal conditions, when there is a positive pressure in the pipeline, the valve is completely closed and when the line pressure reaches negative -0.1 bar, the valve starts to open and at a pressure of -0.2 bar , the valve is fully open and air enters the pipeline with the maximum required flow. A spring-loaded piston cylinder system is used to adjust the closing speed to prevent shock when the disc closes and also to increase the reliability to prevent the vacuum breaker valve from quick closing.<\/p><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-32cc55d elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"32cc55d\" data-element_type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;fadeInDown&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d815a82\" data-id=\"d815a82\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-097163c elementor-widget elementor-widget-counter\" data-id=\"097163c\" data-element_type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\">DN: 100 - <\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"1000\" data-from-value=\"100\">100<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-counter-title\">mm<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-9a003c9\" data-id=\"9a003c9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-981c961 elementor-widget elementor-widget-counter\" data-id=\"981c961\" data-element_type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\">PN: 10 - <\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"63\" data-from-value=\"10\" data-delimiter=\",\">10<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-counter-title\">Bar<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-32ee8c6 elementor-tabs-view-horizontal elementor-widget elementor-widget-tabs\" data-id=\"32ee8c6\" data-element_type=\"widget\" data-widget_type=\"tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-tabs\">\n\t\t\t<div class=\"elementor-tabs-wrapper\" role=\"tablist\" >\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-5341\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-5341\" aria-expanded=\"false\">More Details<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-5342\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-5342\" aria-expanded=\"false\">Technical Document<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-5343\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-5343\" aria-expanded=\"false\">Technical Drawing<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"elementor-tabs-content-wrapper\" role=\"tablist\" aria-orientation=\"vertical\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-5341\" aria-expanded=\"false\">More Details<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-5341\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-5341\" tabindex=\"0\" hidden=\"false\"><p><strong>Application:<\/strong><\/p><p>Air must be injected into the system in large quantities for any reason, such as pipe breaking and accidental discharge, to prevent lines from being damaged and crumpled during uncontrolled fluid outflow. Nahrab Gostar vacuum breaker valve is installed after the Excess Flow Shut \u2013 Off Valves and injects the required air into the pipeline to eliminate the vacuum. The operation of this valve is such that under normal conditions, when there is a positive pressure in the pipeline, the valve is completely closed and when the line pressure reaches negative -0.1 bar, the valve starts to open and at a pressure of -0.2 bar , the valve is fully open and air enters the pipeline with the maximum required flow. A spring-loaded piston cylinder system is used to adjust the closing speed to prevent shock when the disc closes and also to increase the reliability to prevent the vacuum breaker valve from quick closing.<\/p><p><strong>Features and Advantages of Nahrab Gostar air valves:<\/strong><\/p><ul><li>Flange dimensions according to DIN EN 1092-2 (DIN 2501)<\/li><li>Face to Face distance of flanges according to DIN 558-1 ( DIN 3204-F4 )<\/li><li>Final testing of valves according to DIN EN 12266-1<\/li><\/ul><p><strong>Corrosion Protection : <\/strong><\/p><p>Electrostatic\u00a0 epoxy powder Coating\u00a0 with a\u00a0 min\u00a0 thickness\u00a0 250 \u00a0 , certified by reputable international institutions for potable water.<\/p><p dir=\"rtl\"><img decoding=\"async\" class=\"alignnone size-full wp-image-1757 aligncenter\" src=\"http:\/\/nahrab.decodat.com\/wp-content\/uploads\/2019\/11\/sch01-8.png\" alt=\"\" width=\"256\" height=\"184\" srcset=\"https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/sch01-8.png 256w, https:\/\/en.nahrab.net\/wp-content\/uploads\/2019\/11\/sch01-8-64x46.png 64w\" sizes=\"(max-width: 256px) 100vw, 256px\" \/><\/p><div><table id=\"table-1\" class=\"Basic-Table _idGenTablePara-1\"><colgroup> <col \/> <col \/> <col \/> <col \/> <\/colgroup><tbody><tr><td class=\"CellOverride-1\"><p class=\"Normal ParaOverride-1\" xml:lang=\"en-US\"><span class=\"CharOverride-1\">Spare Parts<\/span><\/p><\/td><td class=\"CellOverride-1\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-2\" xml:lang=\"en-GB\">Material<\/span><\/p><\/td><td class=\"CellOverride-1\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-2\" xml:lang=\"en-GB\">Part Name<\/span><\/p><\/td><td class=\"CellOverride-1\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-2\" xml:lang=\"en-GB\">Part No. <\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Body<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">1<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-2\">\u00a0<\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Flange<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">2<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">AISI 304<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Seat<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">3<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-3\"><p class=\"Normal ParaOverride-1\" xml:lang=\"en-US\"><span class=\"CharOverride-5\">\u2022<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" style=\"direction: ltr;\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">NBR or EPDM<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Seat Ring<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">4<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Disk<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">5<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-2\">\u00a0<\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Piston<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">6<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">AISI 304<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Cylinder<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">7<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-3\">\u00a0<\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">X20cr13<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Steam<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">8<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">X20cr13<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Cylinder Ratainer Arms<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">9<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-2\">\u00a0<\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">&#8211;<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Flow Control<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">10<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Al.Bz<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Bushing<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">11<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-3\">\u00a0<\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">1.4310<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Spring<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">12<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Spring Support<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">13<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-2\">\u00a0<\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">St 37-2<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Drain<\/span><\/p><\/td><td class=\"CellOverride-2\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">14<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" style=\"direction: ltr;\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Ductile Iron (GJS 400-15)<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Gate Valve<\/span><\/p><\/td><td><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">15<\/span><\/p><\/td><\/tr><tr><td class=\"CellOverride-3\">\u00a0<\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" style=\"direction: ltr;\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Ductile Iron (GJS 400-15)<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">Air Valve<\/span><\/p><\/td><td class=\"CellOverride-3\"><p class=\"Basic-Paragraph ParaOverride-1\" xml:lang=\"ar-SA\"><span class=\"CharOverride-4\" xml:lang=\"en-GB\">16<\/span><\/p><\/td><\/tr><\/tbody><\/table><\/div><p dir=\"rtl\" style=\"text-align: justify;\">* \u0634\u06cc\u0631 \u0647\u0648\u0627\u06cc \u062f\u06cc\u0633\u06a9\u06cc \u062e\u0644\u0627\u0621 \u0634\u06a9\u0646 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0646\u06cc\u0627\u0632 \u0645\u0634\u062a\u0631\u06cc \u0628\u0627 \u062c\u0646\u0633 \u0686\u062f\u0646 \u062f\u0627\u06a9\u062a\u06cc\u0644 \u06cc\u0627 \u0627\u0633\u062a\u0646\u0644\u0633 \u0627\u0633\u062a\u06cc\u0644 \u0646\u06cc\u0632 \u0642\u0627\u0628\u0644 \u0633\u0627\u062e\u062a \u0645\u06cc \u0628\u0627\u0634\u062f.<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-5342\" aria-expanded=\"false\">Technical Document<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-5342\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-5342\" tabindex=\"0\" hidden=\"hidden\"><ul dir=\"rtl\"><li><a href=\"https:\/\/en.nahrab.net\/wp-content\/uploads\/2021\/02\/Air-Valve.pdf\">Air Valve Catalog<\/a><\/li><\/ul><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-5343\" aria-expanded=\"false\">Technical Drawing<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-5343\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-5343\" tabindex=\"0\" hidden=\"hidden\"><p dir=\"rtl\" style=\"text-align: left;\">Technical drawings of this valve will be Uploaded soon<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>AIR VALVES Vacuum Breaker Valve DN:100-1000 mm | PN: 10-63 bar Air must be injected into the system in large quantities for any reason, such as pipe breaking and accidental discharge, to prevent lines from being damaged and crumpled during uncontrolled fluid outflow. Nahrab Gostar vacuum breaker valve is installed after the Excess Flow Shut&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/pages\/1754"}],"collection":[{"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/en.nahrab.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1754"}],"version-history":[{"count":11,"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/pages\/1754\/revisions"}],"predecessor-version":[{"id":3244,"href":"https:\/\/en.nahrab.net\/index.php?rest_route=\/wp\/v2\/pages\/1754\/revisions\/3244"}],"wp:attachment":[{"href":"https:\/\/en.nahrab.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}