{"id":986,"date":"2023-08-15T16:33:49","date_gmt":"2023-08-15T20:33:49","guid":{"rendered":"https:\/\/backfloshop.creatures.ca\/product\/casse-vide-atmospherique-c-va\/"},"modified":"2025-05-14T15:54:48","modified_gmt":"2025-05-14T19:54:48","slug":"atmospheric-vacuum-breaker-avb","status":"publish","type":"product","link":"https:\/\/backflow-shop.com\/en\/product\/atmospheric-vacuum-breaker-avb\/","title":{"rendered":"Atmospheric vacuum breaker (AVB)"},"content":{"rendered":"<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<ul>\n<li><strong>CSA:<\/strong>\u00a0B64.1.1<\/li>\n<li><strong>ASSE:<\/strong>\u00a01001<\/li>\n<li><strong>Highest hazard protection:<\/strong> high or severe<\/li>\n<li><strong>Back pressure resistant:<\/strong>\u00a0no<\/li>\n<li><strong>Continuous pressure resistant:<\/strong>\u00a0no (12 hours\u00a0maximum)<\/li>\n<li><strong>Field testing required<\/strong>:\u00a0no<\/li>\n<\/ul>\n<h2>Overview\/Benefits<\/h2>\n<ul>\n<li>Provide reliable protection from back siphonage only if\u00a0minor\u00a0or moderate hazards\u00a0exist.<\/li>\n<li>AVB devices do not provide adequate backflow protection\u00a0when\n<ul>\n<li>back pressure can be developed on the downstream side of the device;<\/li>\n<li>\u00a0the device is located in an area subject to flooding;<\/li>\n<li>The device is under constant pressure for more than 12 hours, because the float disc can get stuck in the open position, rendering it inoperative in the event of back siphoning.<\/li>\n<\/ul>\n<\/li>\n<li>The critical level must be located at least 150 mm above the overflow level of the fixture, container or accessory.<\/li>\n<\/ul>\n<h2>Application examples<\/h2>\n<ul>\n<li>Washing\u00a0tank<\/li>\n<li>Outdoor faucet hose<\/li>\n<li>Potato-peeling machines<\/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<h2>Models<\/h2>\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>35 &amp; 35XL<\/li>\n<li>35XLVCH<\/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>AVB1 &amp; AVB1LF<\/li>\n<li>AVB2<\/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>188A &amp; 288A &amp; LF288A<\/li>\n<li>LF288A-DM<\/li>\n<li>N388 &amp; LFN388<\/li>\n<\/ul>\n<\/div>\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","protected":false},"excerpt":{"rendered":"<p>CSA:\u00a0B64.1.1 ASSE:\u00a01001 Highest hazard protection: high or severe Back pressure resistant:\u00a0no Continuous pressure resistant:\u00a0no (12 hours\u00a0maximum) Field testing required:\u00a0no Overview\/Benefits Provide reliable protection from back siphonage only if\u00a0minor\u00a0or moderate hazards\u00a0exist. AVB devices do not provide adequate backflow protection\u00a0when back pressure can be developed on the downstream side of the device; \u00a0the device is located in [&hellip;]<\/p>\n","protected":false},"featured_media":845,"template":"","meta":[],"product_brand":[],"product_cat":[52],"product_tag":[],"class_list":{"0":"post-986","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-backflow-preventers-no-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 v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Atmospheric vacuum breaker (AVB) - Backflo Shop<\/title>\n<meta name=\"description\" content=\"The CSA B64.1.1 and ASSE 1001 compliant atmospheric vacuum breaker (A-VBA) prevents backsiphonage for a variety of applications.\" \/>\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\/atmospheric-vacuum-breaker-avb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atmospheric vacuum breaker (AVB) - 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