{"id":977,"date":"2025-03-05T11:17:03","date_gmt":"2025-03-05T11:17:03","guid":{"rendered":"https:\/\/flowrates.com\/boutique\/uncategorized\/double-eccentric-butterfly-valve-f4-design\/"},"modified":"2025-04-14T15:19:02","modified_gmt":"2025-04-14T15:19:02","slug":"double-eccentric-butterfly-valve-f4-design","status":"publish","type":"product","link":"https:\/\/flowrates.com\/en\/water\/double-eccentric-butterfly-valve-f4-design\/","title":{"rendered":"Double Eccentric Butterfly Valve &#8211; F4 Design"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"977\" class=\"elementor elementor-977 elementor-750\" data-elementor-settings=\"{&quot;element_pack_global_tooltip_width&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_padding&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true}}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-14a9963d e-con-full e-flex e-con e-parent\" data-id=\"14a9963d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-86b3ffd e-con-full e-flex e-con e-child\" data-id=\"86b3ffd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c2c28e6 elementor-widget elementor-widget-text-editor\" data-id=\"2c2c28e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Technical Specifications of the Double-Offset Butterfly Valve<\/h2><p><strong>DN <\/strong>: 150 to 2000<\/p><p><strong>PN<\/strong> : PN10 \/ PN16 \/ PN25 \/ PN40<\/p><p><strong data-start=\"100\" data-end=\"116\">Connections <\/strong>: Flanges<\/p><ul><li>Shaft and disc polygon coupling \u201cP3G\u201d type according to DIN 32711<\/li><li>Main disc sealing ring made of EPDM according to EN 681-1 WA, WB<\/li><li>Internal and external surface protection made of epoxy resin powder (FBE), blue colour RAL 5015 and thickness of 250\u03bcm<\/li><li>Soft sealing according to EN 593<\/li><li>Flanges as per EN1092<\/li><li>Face to face dimension according to EN 558 series 14<\/li><li>All materials, including lubricants, in contact with water approved for human consumption according to EN 1074-1 and EN 1074-2<\/li><li>Hydraulic test according to EN 12266-1<\/li><li>Tight in both flow directions<strong data-start=\"730\" data-end=\"774\">,<\/strong> rate A according to EN 12266-1 (zero drops);<\/li><li>Flange dimensions according to EN 1092-2<\/li><li>Operating temperature: min. -10 \u00b0C (excluding frost) \u2013 max. +70 \u00b0C<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The Flowrates double-offset, double-flanged butterfly valve is designed to <strong>shut off<\/strong> or partially <strong>restrict the flow<\/strong>. Indeed, with certain limitations, a double-flanged, double-offset butterfly valve can also be used as a regulating valve.<\/p>\n<p>The tightness of the valve is guaranteed by an <strong>automatic sealing system<\/strong> in the seat: when closed, the operating pressure supports the <strong>tightening <\/strong>effect by pressing the soft sealing ring against the conical seat surface in the valve body in <strong>both flow directions<\/strong>.<\/p>\n<p>The <strong>double offset design<\/strong> of the valve allows to get two important advantages:<\/p>\n<p>&#8211; when the valve is open, the profile sealing ring is completely unstressed;<\/p>\n<p>&#8211; during opening\/closing operations, the disc sealing ring does not apply any friction on the body seat: the operating torque is in this way reduced, and the seal&#8217;s life is extended.<\/p>\n<p>The valve is suitable for <strong>drinking water<\/strong> applications as well : the fusion bonded epoxy process (FBE), with certified resin powders used for internal and external surfaces, guarantees a <strong>heavy corrosion protection<\/strong>.<\/p>\n<h2>Buried Double-Offset Butterfly Valve: Essential IP68-Rated Gear Reducer<\/h2>\n<p>These valves can be <strong>buried<\/strong>. In this case, it is important to replace the gear reducer with an <strong>IP68<\/strong>-rated version adapted for this application.<\/p>\n<div style=\"text-align: center;\"><a class=\"btn-configurateur elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/flowrates-valves.com\/summary\/recMdeD7O6aJMqUNo\" target=\"_blank\" rel=\"noopener\"><span class=\"elementor-button-content-wrapper\"><span class=\"elementor-button-text\">Configure your valve here<\/span><\/span><\/a><\/div>\n","protected":false},"featured_media":938,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":{"0":"post-977","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-water","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product\/977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/comments?post=977"}],"version-history":[{"count":8,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product\/977\/revisions"}],"predecessor-version":[{"id":1352,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product\/977\/revisions\/1352"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/media\/938"}],"wp:attachment":[{"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/media?parent=977"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product_brand?post=977"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product_cat?post=977"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/flowrates.com\/en\/wp-json\/wp\/v2\/product_tag?post=977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}