{"id":992,"date":"2023-08-15T16:08:40","date_gmt":"2023-08-15T20:08:40","guid":{"rendered":"https:\/\/backfloshop.creatures.ca\/product\/dispositifs-antirefoulement-a-deux-clapets-de-retenue-et-robinets-pour-les-systemes-de-protection-incendie-dar2cri\/"},"modified":"2025-05-14T16:11:18","modified_gmt":"2025-05-14T20:11:18","slug":"double-check-valve-backflow-preventer-for-fire-protection-systems-dcvaf","status":"publish","type":"product","link":"https:\/\/backflow-shop.com\/en\/product\/double-check-valve-backflow-preventer-for-fire-protection-systems-dcvaf\/","title":{"rendered":"Double check valve backflow preventer for fire protection systems (DCVAF)"},"content":{"rendered":"<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<ul>\n<li><strong>CSA:\u00a0<\/strong>B64.5.1<\/li>\n<li><strong>ASSE:<\/strong>\u00a01048<\/li>\n<li><strong>Highest hazard protection:\u00a0\u00a0<\/strong>moderate<\/li>\n<li><strong>Back pressure resistant:<\/strong>\u00a0yes<\/li>\n<li><strong>Continuous pressure resistant:<\/strong>\u00a0yes<\/li>\n<li><strong>Field testing required<\/strong>:\u00a0yes<\/li>\n<\/ul>\n<h2>Overview\/Benefits<\/h2>\n<ul>\n<li>Provide reliable protection from both siphonage and back pressure for low or moderate risk fire protection systems.<\/li>\n<li>Can be installed horizontally and vertically if approved by a recognized agency (US, CSA, etc.).<\/li>\n<li>Can be placed in a vault if the test cocks\u00a0are sealed.<\/li>\n<li>For models of 2 1\/2 \u2033 and more, assembly with OSY (Open Stem &amp; Yoke) or butterfly valves ready to receive added supervision.<\/li>\n<\/ul>\n<h2>Application examples<\/h2>\n<p>The majority of fire sprinkler systems or fire hoses water supply networks:<\/p>\n<ul>\n<li>Office tower<\/li>\n<li>Arena<\/li>\n<li>Shopping mall<\/li>\n<li>College, school, university<\/li>\n<li>Car dealer<\/li>\n<li>Motel<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid\">\n<div class=\"wpb_column vc_column_container vc_col-sm-12\">\n<div class=\"vc_column-inner\">\n<div class=\"wpb_wrapper\">\n<div class=\"vc_separator wpb_content_element vc_separator_align_left vc_sep_width_100 vc_sep_pos_align_center vc_sep_color_grey vc_separator-has-text\">\n<h3>Mod\u00e8les<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid vc_custom_1461949945799\">\n<div class=\"wpb_column vc_column_container vc_col-sm-4\">\n<div class=\"vc_column-inner\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h3>WILKINS<\/h3>\n<ul>\n<li>350AST &amp; 350ASTDA<\/li>\n<li>350A &amp; 350ADA<\/li>\n<li>350<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"wpb_column vc_column_container vc_col-sm-4\">\n<div class=\"vc_column-inner\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h3>CONBRACO<\/h3>\n<ul>\n<li>DCDALF4A &amp; DCDALF4An<\/li>\n<li>DCDA2LF4A &amp; DCDA2LF4AN<\/li>\n<li>DCDA4S<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"wpb_column vc_column_container vc_col-sm-4\">\n<div class=\"vc_column-inner\">\n<div class=\"wpb_wrapper\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h3>WATTS<\/h3>\n<ul>\n<li>007 &amp; 007DCDA<\/li>\n<li>709 &amp; 709DCDA<\/li>\n<li>757 &amp; 757DCDA<\/li>\n<li>774 &amp; 774DCDA<\/li>\n<\/ul>\n<p><a href=\"https:\/\/backflow-shop.com\/en\/product-category\/backflow-preventers-field-testing-required\/\">Take a look at the other Backflow Preventers: field testing required<\/a><\/p>\n<p><a href=\"https:\/\/backflow-shop.com\/en\/product-category\/backflow-preventers-no-field-testing-required\/\">Take a look at the other Backflow Preventers: NO field testing required<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CSA:\u00a0B64.5.1 ASSE:\u00a01048 Highest hazard protection:\u00a0\u00a0moderate Back pressure resistant:\u00a0yes Continuous pressure resistant:\u00a0yes Field testing required:\u00a0yes Overview\/Benefits Provide reliable protection from both siphonage and back pressure for low or moderate risk fire protection systems. Can be installed horizontally and vertically if approved by a recognized agency (US, CSA, etc.). Can be placed in a vault if the [&hellip;]<\/p>\n","protected":false},"featured_media":839,"template":"","meta":[],"product_brand":[],"product_cat":[53],"product_tag":[],"class_list":{"0":"post-992","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-backflow-preventers-field-testing-required","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Double check valve backflow preventer for fire protection systems (DCVAF) - Backflo Shop<\/title>\n<meta name=\"description\" content=\"The Double Check Valve Backflow Preventer (DCVAF) provides moderate hazard protection, preventing siphonage and back pressure in fire systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/backflow-shop.com\/en\/product\/double-check-valve-backflow-preventer-for-fire-protection-systems-dcvaf\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Double check valve backflow preventer for fire protection systems (DCVAF) - 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