{"id":48003,"date":"2025-08-29T20:33:20","date_gmt":"2025-08-29T17:03:20","guid":{"rendered":"https:\/\/vispar.co\/products\/air-vent-valve-2\/"},"modified":"2025-12-06T11:00:58","modified_gmt":"2025-12-06T07:30:58","slug":"air-vent-valve","status":"publish","type":"product","link":"https:\/\/vispar.co\/en\/products\/air-vent-valve\/","title":{"rendered":"Air Vent Valve"},"content":{"rendered":"<p dir=\"auto\">The air vent valve is one of the most important components in any pressurized irrigation system. It automatically removes trapped air from pipelines, prevents air locks, protects against water hammer, and significantly extends the service life of pipes, fittings and pumps. Vispar is one of Iran\u2019s most trusted manufacturers of high-quality air vent valves and other irrigation equipment.<\/p>\n<h2 dir=\"auto\">Air Vent Valve<\/h2>\n<p dir=\"auto\">The Vispar Air Vent Valve is a fully polymeric automatic valve designed to release trapped air during filling and normal operation, while also allowing air intake when the pipeline is drained (vacuum relief). Proper use of these valves eliminates:<\/p>\n<ul dir=\"auto\">\n<li>Air pockets that disrupt flow<\/li>\n<li>Water hammer and pipe bursts<\/li>\n<li>Cavitation damage to pumps and control valves<\/li>\n<li>Reduced pump efficiency and uneven irrigation<\/li>\n<\/ul>\n<h2 dir=\"auto\">Technical Specifications \u2013 Vispar Air Vent Valve<\/h2>\n<ul dir=\"auto\">\n<li>Sizes: 1&#8243; and 2&#8243; (threaded)<\/li>\n<li>Maximum working pressure: 10 bar<\/li>\n<li>Body material: High-strength polypropylene (PP) \u2013 100 % corrosion-proof<\/li>\n<li>Seals: EPDM or NBR<\/li>\n<li>Recommended maximum pipe diameter: up to 250 mm (10&#8243;) \u2192 use 2&#8243; valve; smaller lines \u2192 use 1&#8243; valve<\/li>\n<li>Fully automatic operation \u2013 no electricity or manual intervention required<\/li>\n<\/ul>\n<h2 dir=\"auto\">Applications<\/h2>\n<ul dir=\"auto\">\n<li>Drip irrigation mainlines and sub-mains<\/li>\n<li>Sprinkler and classic rainfall irrigation systems<\/li>\n<li>Any pressurized water supply or filtration system<\/li>\n<li>Installed at high points, long horizontal runs, and before\/after pumps and valves<\/li>\n<\/ul>\n<h2 dir=\"auto\">How It Works<\/h2>\n<ol dir=\"auto\">\n<li>During filling: Air inside the pipe pushes the float down \u2192 the vent stays open and rapidly expels large volumes of air<\/li>\n<li>Normal operation: Water pressure lifts the float \u2192 the valve seals tightly, preventing water loss<\/li>\n<li>During draining or pressure drop: The float drops \u2192 the moment negative pressure occurs \u2192 air rushes in and prevents vacuum formation and pipe collapse<\/li>\n<\/ol>\n<h2 dir=\"auto\">Advantages of Vispar Air Vent Valve<\/h2>\n<ul dir=\"auto\">\n<li>100 % corrosion- and rust-proof polymeric construction<\/li>\n<li>Large air-release capacity with very low pressure loss<\/li>\n<li>Simple, reliable kinetic design \u2013 proven long-term performance<\/li>\n<li>Easy installation and zero maintenance<\/li>\n<li>Official approval from the Ministry of Agriculture<\/li>\n<\/ul>\n<h2 dir=\"auto\">Pricing &amp; Purchase<\/h2>\n<p style=\"text-align: left;\">.Contact our sales team or visit the \u201cContact Us\u201d page to locate your nearest authorized distributor<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The air vent valve is one of the most&#8230;<\/p>\n","protected":false},"featured_media":43607,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[1263],"product_tag":[],"class_list":{"0":"post-48003","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-polymer-valves","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/product\/48003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/comments?post=48003"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/media\/43607"}],"wp:attachment":[{"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/media?parent=48003"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/product_cat?post=48003"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vispar.co\/en\/wp-json\/wp\/v2\/product_tag?post=48003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}