{"id":374,"date":"2026-06-14T11:28:43","date_gmt":"2026-06-14T11:28:43","guid":{"rendered":"https:\/\/redfire.co.in\/?post_type=product&#038;p=374"},"modified":"2026-07-11T02:50:02","modified_gmt":"2026-07-11T02:50:02","slug":"air-release-valve-25mm","status":"publish","type":"product","link":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm","title":{"rendered":"Air Release Valve 25mm"},"content":{"rendered":"<div id=\"root\">\n<div class=\"cb86951c\">\n<div class=\"c3ecdb44\">\n<div class=\"_7780f2e\">\n<div class=\"_765a5cd\">\n<div class=\"ds-virtual-list ds-virtual-list--printable ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _2bd7b35\" tabindex=\"0\">\n<div class=\"ds-virtual-list-items _6f2c522\">\n<div class=\"ds-virtual-list-visible-items\">\n<div class=\"_4f9bf79 d7dc56a8 _43c05b5\" data-virtual-list-item-key=\"30\">\n<div class=\"ds-message _63c77b1\">\n<div class=\"ds-markdown ds-assistant-message-main-content\">\n<h1><span class=\"\">ISI-Certified 25mm Air Release Valve<\/span><\/h1>\n<hr \/>\n<h2><span class=\"\">Overview<\/span><\/h2>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The\u00a0<\/span><strong><span class=\"\">ISI-Certified 25mm Air Release Valve<\/span><\/strong><span class=\"\">\u00a0is a precision-engineered automatic air release device designed to eliminate trapped air from water pipelines, pumping systems, and fire-fighting risers. Manufactured in compliance with stringent Indian Standards and bearing the prestigious\u00a0<\/span><strong><span class=\"\">ISI Mark<\/span><\/strong><span class=\"\">\u00a0\u2014 a certification from the\u00a0<\/span><strong><span class=\"\">Bureau of Indian Standards (BIS)<\/span><\/strong><span class=\"\">\u00a0\u2014 this valve ensures quality, safety, and performance you can trust.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Air entrapment in water systems can cause significant operational issues including flow reduction, pressure fluctuations, water hammer, and dry running of pumps<\/span><span class=\"\">. The 25mm Air Release Valve automatically releases accumulated air from the highest points of the system, preventing air locks and ensuring efficient, uninterrupted flow. When water reaches the valve, a reliable float mechanism seals the outlet, allowing pressure to build up and the system to function optimally<\/span><span class=\"\">.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Whether you&#8217;re installing a new water supply network, maintaining a fire-fighting dry riser system, or upgrading an existing pumping station, the ISI-Certified 25mm Air Release Valve delivers the reliability, durability, and performance you need for long-term, trouble-free operation.<\/span><\/p>\n<hr \/>\n<h2><span class=\"\">Key Features<\/span><\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<div class=\"ds-scroll-area__gutters\">\n<div class=\"ds-scroll-area__horizontal-gutter\"><\/div>\n<div class=\"ds-scroll-area__vertical-gutter\"><\/div>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Feature<\/span><\/th>\n<th><span class=\"\">Description<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">ISI Mark Certified<\/span><\/strong><\/td>\n<td><span class=\"\">Bearing the prestigious ISI Mark, this valve conforms to\u00a0<\/span><strong><span class=\"\">IS 14845:2000<\/span><\/strong><span class=\"\">\u00a0\u2014 the Indian Standard for resilient seated cast iron air relief valves for water works purposes<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Automatic Float-Operated Mechanism<\/span><\/strong><\/td>\n<td><span class=\"\">A floating ball arrangement inside the valve housing automatically releases air while sealing the outlet when water reaches the valve, preventing water loss<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">High-Quality Materials<\/span><\/strong><\/td>\n<td><span class=\"\">Available in\u00a0<\/span><strong><span class=\"\">Stainless Steel SS304<\/span><\/strong><span class=\"\">,\u00a0<\/span><strong><span class=\"\">Forged Brass<\/span><\/strong><span class=\"\">, or\u00a0<\/span><strong><span class=\"\">Cast Iron<\/span><\/strong><span class=\"\">\u00a0construction for superior corrosion resistance and long service life<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Screwed \/ Threaded Inlet<\/span><\/strong><\/td>\n<td><span class=\"\">25mm size with\u00a0<\/span><strong><span class=\"\">Male British Standard Pipe (MBSP)<\/span><\/strong><span class=\"\">\u00a0threads for easy and secure installation<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">High Pressure Rating<\/span><\/strong><\/td>\n<td><span class=\"\">Working pressure up to\u00a0<\/span><strong><span class=\"\">7-10 kgf\/cm\u00b2<\/span><\/strong><span class=\"\">\u00a0with hydrostatic test pressure of\u00a0<\/span><strong><span class=\"\">15-21 kgf\/cm\u00b2<\/span><\/strong><span class=\"\">, ensuring reliable performance under demanding conditions<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Wide Temperature Range<\/span><\/strong><\/td>\n<td><span class=\"\">Operates reliably across a broad temperature spectrum, suitable for both hot and cold water systems<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Low Maintenance Design<\/span><\/strong><\/td>\n<td><span class=\"\">Robust construction with high-density polyethylene float and EPDM\/Nitrile rubber seals minimises maintenance requirements<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Anti-Tamper Design<\/span><\/strong><\/td>\n<td><span class=\"\">Tamper-proof construction eliminates water wastage and ensures system integrity<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Versatile Applications<\/span><\/strong><\/td>\n<td><span class=\"\">Suitable for potable water, treated fresh water, fire-fighting systems, and industrial applications<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<h2><span class=\"\">Technical Specifications<\/span><\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<div class=\"ds-scroll-area__gutters\">\n<div class=\"ds-scroll-area__horizontal-gutter\"><\/div>\n<div class=\"ds-scroll-area__vertical-gutter\"><\/div>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Parameter<\/span><\/th>\n<th><span class=\"\">Specification<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">Valve Size<\/span><\/strong><\/td>\n<td><span class=\"\">25mm (1 inch)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Standard<\/span><\/strong><\/td>\n<td><span class=\"\">IS 14845:2000 (ISI Mark Certified)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Type<\/span><\/strong><\/td>\n<td><span class=\"\">Single air valve \u2013 Large orifice type (S2) \/ Small orifice type (S1) as per IS 14845<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Body Material<\/span><\/strong><\/td>\n<td><span class=\"\">Stainless Steel SS304 \/ Forged Brass \/ Cast Iron (as per model)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Float Material<\/span><\/strong><\/td>\n<td><span class=\"\">High Density Expanded Polyethylene \/ Rubber-coated Cork<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Seat \/ O-Ring Material<\/span><\/strong><\/td>\n<td><span class=\"\">Nitrile Rubber \/ EPDM<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Strainer Material<\/span><\/strong><\/td>\n<td><span class=\"\">Stainless Steel SS304<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Spring Material<\/span><\/strong><\/td>\n<td><span class=\"\">Stainless Steel SS304<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Inlet Connection<\/span><\/strong><\/td>\n<td><span class=\"\">25mm MBSP (Male British Standard Pipe Thread)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Working Pressure<\/span><\/strong><\/td>\n<td><span class=\"\">Up to 7-10 kgf\/cm\u00b2<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Hydrostatic Test Pressure<\/span><\/strong><\/td>\n<td><span class=\"\">15-21 kgf\/cm\u00b2<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Maximum Working Temperature<\/span><\/strong><\/td>\n<td><span class=\"\">Up to 80\u00b0C<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">End Connection<\/span><\/strong><\/td>\n<td><span class=\"\">Screwed \/ Threaded<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Approximate Weight<\/span><\/strong><\/td>\n<td><span class=\"\">4.5 kg (for SS304 model)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">Warranty<\/span><\/strong><\/td>\n<td><span class=\"\">12 months from date of supply<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<h2><span class=\"\">Why Choose ISI-Certified 25mm Air Release Valve?<\/span><\/h2>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">ISI Mark Certified<\/span><\/strong><span class=\"\">\u00a0\u2014 Bearing the prestigious ISI Mark, this valve is manufactured in compliance with\u00a0<\/span><strong><span class=\"\">IS 14845:2000<\/span><\/strong><span class=\"\">, the Indian Standard for air relief valves. This certification from the\u00a0<\/span><strong><span class=\"\">Bureau of Indian Standards (BIS)<\/span><\/strong><span class=\"\">\u00a0ensures that the valve meets stringent quality, safety, and performance requirements<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Superior Material Quality<\/span><\/strong><span class=\"\">\u00a0\u2014 Available in premium materials including\u00a0<\/span><strong><span class=\"\">Stainless Steel SS304<\/span><\/strong><span class=\"\">,\u00a0<\/span><strong><span class=\"\">Forged Brass<\/span><\/strong><span class=\"\">\u00a0(IS 6912 Gr.FLB), and\u00a0<\/span><strong><span class=\"\">Cast Iron<\/span><\/strong><span class=\"\">, offering excellent corrosion resistance and long service life<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Automatic Operation<\/span><\/strong><span class=\"\">\u00a0\u2014 The float-operated mechanism automatically releases trapped air without manual intervention, ensuring system efficiency and preventing air locks<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">High Pressure Capability<\/span><\/strong><span class=\"\">\u00a0\u2014 With working pressure up to\u00a0<\/span><strong><span class=\"\">7-10 kgf\/cm\u00b2<\/span><\/strong><span class=\"\">\u00a0and hydrostatic test pressure of\u00a0<\/span><strong><span class=\"\">15-21 kgf\/cm\u00b2<\/span><\/strong><span class=\"\">, this valve is built to withstand demanding operational conditions<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Prevents System Damage<\/span><\/strong><span class=\"\">\u00a0\u2014 By eliminating trapped air, the valve prevents water hammer, pressure fluctuations, flow reduction, and dry running of pumps \u2014 protecting your entire water system<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Trusted by Authorities<\/span><\/strong><span class=\"\">\u00a0\u2014 Widely accepted by Municipal Corporations, Irrigation Authorities, Water Supply Authorities, and various industrial users<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Made in India<\/span><\/strong><span class=\"\">\u00a0\u2014 Proudly manufactured in India to the highest quality standards<\/span><\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"\">Ideal Applications<\/span><\/h2>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fire Fighting Systems<\/span><\/strong><span class=\"\">\u00a0\u2014 Dry risers and wet riser systems for releasing air when water is pumped into the riser<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Water Supply Networks<\/span><\/strong><span class=\"\">\u00a0\u2014 Municipal water distribution and pipeline systems<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Pumping Stations<\/span><\/strong><span class=\"\">\u00a0\u2014 Preventing dry running of pumps and maintaining prime<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Irrigation Systems<\/span><\/strong><span class=\"\">\u00a0\u2014 Agricultural water supply and sprinkler systems<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Industrial Water Systems<\/span><\/strong><span class=\"\">\u00a0\u2014 Process water, cooling water, and utility applications<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Hot &amp; Cold Water Systems<\/span><\/strong><span class=\"\">\u00a0\u2014 Eliminating entrapped air for improved thermal efficiency<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">High-Rise Buildings<\/span><\/strong><span class=\"\">\u00a0\u2014 Water distribution in multi-storey residential and commercial complexes<\/span><\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"\">Compliance &amp; Standards<\/span><\/h2>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\">\n<div class=\"ds-scroll-area__gutters\">\n<div class=\"ds-scroll-area__horizontal-gutter\"><\/div>\n<div class=\"ds-scroll-area__vertical-gutter\"><\/div>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><span class=\"\">Standard<\/span><\/th>\n<th><span class=\"\">Description<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><span class=\"\">IS 14845:2000<\/span><\/strong><\/td>\n<td><span class=\"\">Resilient Seated Cast Iron Air Relief Valves for Water Works Purposes<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">IS 6912 Gr.FLB<\/span><\/strong><\/td>\n<td><span class=\"\">Forged Brass specification (for brass models)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">IS 3444<\/span><\/strong><\/td>\n<td><span class=\"\">Stainless Steel specification (for SS304 models)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong><span class=\"\">ISI Mark<\/span><\/strong><\/td>\n<td><span class=\"\">Bureau of Indian Standards certification mark<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr \/>\n<p class=\"ds-markdown-paragraph\"><em><span class=\"\">For detailed product inquiries, technical specifications, bulk order pricing, or to place an order, please contact our sales team.<\/span><\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"\">The\u00a0<\/span><strong><span class=\"\">ISI-Certified 25mm Air Release Valve<\/span><\/strong><span class=\"\">\u00a0is a precision-engineered automatic air release device designed to eliminate trapped air from water pipelines, pumping systems, and fire-fighting risers. Manufactured in compliance with stringent Indian Standards and bearing the prestigious\u00a0<\/span><strong><span class=\"\">ISI Mark<\/span><\/strong><span class=\"\">\u00a0\u2014 a certification from the\u00a0<\/span><strong><span class=\"\">Bureau of Indian Standards (BIS)<\/span><\/strong><span class=\"\">\u00a0\u2014 this valve ensures quality, safety, and performance you can trust.<\/span><\/p>\n","protected":false},"featured_media":407,"comment_status":"open","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false},"product_brand":[21],"product_cat":[42],"product_tag":[],"class_list":["post-374","product","type-product","status-publish","has-post-thumbnail","product_brand-isi","product_cat-fire-hydrant-systems","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Air Release Valve 25mm -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/redfire.co.in\/?product=air-release-valve-25mm\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Air Release Valve 25mm -\" \/>\n<meta property=\"og:description\" content=\"The\u00a0ISI-Certified 25mm Air Release Valve\u00a0is a precision-engineered automatic air release device designed to eliminate trapped air from water pipelines, pumping systems, and fire-fighting risers. Manufactured in compliance with stringent Indian Standards and bearing the prestigious\u00a0ISI Mark\u00a0\u2014 a certification from the\u00a0Bureau of Indian Standards (BIS)\u00a0\u2014 this valve ensures quality, safety, and performance you can trust.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/redfire.co.in\/?product=air-release-valve-25mm\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-11T02:50:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/06\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"225\" \/>\n\t<meta property=\"og:image:height\" content=\"225\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm\",\"url\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm\",\"name\":\"Air Release Valve 25mm -\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/redfire.co.in\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg\",\"datePublished\":\"2026-06-14T11:28:43+00:00\",\"dateModified\":\"2026-07-11T02:50:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm#primaryimage\",\"url\":\"https:\\\/\\\/redfire.co.in\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg\",\"contentUrl\":\"https:\\\/\\\/redfire.co.in\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg\",\"width\":225,\"height\":225},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/?product=air-release-valve-25mm#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/redfire.co.in\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/redfire.co.in\\\/?page_id=22\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Air Release Valve 25mm\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#website\",\"url\":\"https:\\\/\\\/redfire.co.in\\\/\",\"name\":\"https:\\\/\\\/redfire.co.in\\\/\",\"description\":\"Redfire: Protecting Lives &amp; Property.\",\"publisher\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/redfire.co.in\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#organization\",\"name\":\"RED FIRE\",\"url\":\"https:\\\/\\\/redfire.co.in\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/redfire.co.in\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/file_00000000884071faa7630fc5cfe164e5.png\",\"contentUrl\":\"https:\\\/\\\/redfire.co.in\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/file_00000000884071faa7630fc5cfe164e5.png\",\"width\":1254,\"height\":1254,\"caption\":\"RED FIRE\"},\"image\":{\"@id\":\"https:\\\/\\\/redfire.co.in\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Air Release Valve 25mm -","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm","og_locale":"en_US","og_type":"article","og_title":"Air Release Valve 25mm -","og_description":"The\u00a0ISI-Certified 25mm Air Release Valve\u00a0is a precision-engineered automatic air release device designed to eliminate trapped air from water pipelines, pumping systems, and fire-fighting risers. Manufactured in compliance with stringent Indian Standards and bearing the prestigious\u00a0ISI Mark\u00a0\u2014 a certification from the\u00a0Bureau of Indian Standards (BIS)\u00a0\u2014 this valve ensures quality, safety, and performance you can trust.","og_url":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm","article_modified_time":"2026-07-11T02:50:02+00:00","og_image":[{"width":225,"height":225,"url":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/06\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm","url":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm","name":"Air Release Valve 25mm -","isPartOf":{"@id":"https:\/\/redfire.co.in\/#website"},"primaryImageOfPage":{"@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm#primaryimage"},"image":{"@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm#primaryimage"},"thumbnailUrl":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/06\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg","datePublished":"2026-06-14T11:28:43+00:00","dateModified":"2026-07-11T02:50:02+00:00","breadcrumb":{"@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/redfire.co.in\/?product=air-release-valve-25mm"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm#primaryimage","url":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/06\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg","contentUrl":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/06\/WhatsApp-Image-2026-06-14-at-4.20.42-PM.jpeg","width":225,"height":225},{"@type":"BreadcrumbList","@id":"https:\/\/redfire.co.in\/?product=air-release-valve-25mm#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/redfire.co.in\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/redfire.co.in\/?page_id=22"},{"@type":"ListItem","position":3,"name":"Air Release Valve 25mm"}]},{"@type":"WebSite","@id":"https:\/\/redfire.co.in\/#website","url":"https:\/\/redfire.co.in\/","name":"https:\/\/redfire.co.in\/","description":"Redfire: Protecting Lives &amp; Property.","publisher":{"@id":"https:\/\/redfire.co.in\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/redfire.co.in\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/redfire.co.in\/#organization","name":"RED FIRE","url":"https:\/\/redfire.co.in\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/redfire.co.in\/#\/schema\/logo\/image\/","url":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/05\/file_00000000884071faa7630fc5cfe164e5.png","contentUrl":"https:\/\/redfire.co.in\/wp-content\/uploads\/2026\/05\/file_00000000884071faa7630fc5cfe164e5.png","width":1254,"height":1254,"caption":"RED FIRE"},"image":{"@id":"https:\/\/redfire.co.in\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/redfire.co.in\/index.php?rest_route=\/wp\/v2\/product\/374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/redfire.co.in\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/redfire.co.in\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/redfire.co.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=374"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/redfire.co.in\/index.php?rest_route=\/wp\/v2\/media\/407"}],"wp:attachment":[{"href":"https:\/\/redfire.co.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=374"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/redfire.co.in\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=374"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/redfire.co.in\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=374"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/redfire.co.in\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}