{"id":271,"date":"2026-01-28T06:28:37","date_gmt":"2026-01-28T06:28:37","guid":{"rendered":"https:\/\/lavenderblush-baboon-587093.hostingersite.com\/?page_id=271"},"modified":"2026-05-26T07:15:37","modified_gmt":"2026-05-26T07:15:37","slug":"double-eccentric-butterfly-valve","status":"publish","type":"page","link":"https:\/\/claval-control.us\/?page_id=271","title":{"rendered":"Double Eccentric Butterfly Valve"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"271\" class=\"elementor elementor-271\">\n\t\t\t\t<div class=\"elementor-element elementor-element-730603d e-flex e-con-boxed e-con e-parent\" data-id=\"730603d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a6ee51d e-con-full e-flex e-con e-child\" data-id=\"a6ee51d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-235909d elementor-widget elementor-widget-heading\" data-id=\"235909d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Double Eccentric Butterfly Valve<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e137dd0 e-flex e-con-boxed e-con e-parent\" data-id=\"e137dd0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4292b17 e-con-full e-flex e-con e-child\" data-id=\"4292b17\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d499e92 elementor-widget elementor-widget-heading\" data-id=\"d499e92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">High-Performance Flow Control. Less Wear. Longer Life.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74c1864 elementor-widget elementor-widget-text-editor\" data-id=\"74c1864\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">The Claval Double Eccentric Butterfly Valve \u2014 also known as a High Performance Butterfly Valve \u2014 is engineered for demanding industrial flow control applications where reliability, tight shut-off and low maintenance costs are critical. Its double-offset shaft geometry ensures the disc lifts cleanly and completely away from the seat the instant it begins to open, eliminating the continuous seat friction that limits the service life of conventional concentric butterfly valves. The result is a valve that seals consistently, operates with significantly lower torque, and outlasts standard designs across a wide range of process conditions.<\/p><p>\u00a0<\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Benefits<\/p><ul><li class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Double-offset disc geometry causes the disc to cam away from the seat on opening, eliminating continuous seat contact and reducing wear by a significant margin compared to concentric designs<\/li><li class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Ultra-low operating torque across the full stroke enables the use of smaller, more economical actuators \u2014 reducing both capital cost and energy consumption over the valve&#8217;s service life<\/li><li class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Bubble-tight shut-off in both flow directions, with near-zero leakage achieved through precision disc-to-seat contact \u2014 suitable for isolation and flow regulation duties alike<\/li><li class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">High pressure and temperature capability \u2014 metal seat design supports service up to 425\u00b0C and Class 300 pressure rating, far exceeding the limits of standard rubber-seated butterfly valves<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f2b7d1a e-con-full e-flex e-con e-child\" data-id=\"f2b7d1a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1e9a74 elementor-widget elementor-widget-image\" data-id=\"a1e9a74\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"529\" height=\"441\" src=\"https:\/\/claval-control.us\/wp-content\/uploads\/2026\/05\/butterfly-valve.png\" class=\"attachment-large size-large wp-image-618\" alt=\"\" srcset=\"https:\/\/claval-control.us\/wp-content\/uploads\/2026\/05\/butterfly-valve.png 529w, https:\/\/claval-control.us\/wp-content\/uploads\/2026\/05\/butterfly-valve-300x250.png 300w\" sizes=\"(max-width: 529px) 100vw, 529px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-17f41c8 e-flex e-con-boxed e-con e-parent\" data-id=\"17f41c8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4872635 e-con-full e-flex e-con e-child\" data-id=\"4872635\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0fed173 e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"0fed173\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;start&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"16699763\" aria-label=\"Tabs. Open items with Enter or Space, close with Escape and navigate using the Arrow keys.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-166997631\" data-tab-title-id=\"e-n-tab-title-166997631\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-166997631\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tSpecifications\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-166997632\" data-tab-title-id=\"e-n-tab-title-166997632\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-166997632\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFeatures\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-166997633\" data-tab-title-id=\"e-n-tab-title-166997633\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-166997633\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tIndustry Aplications\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-166997631\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-166997631\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-99f3649 e-con-full e-flex e-con e-child\" data-id=\"99f3649\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d0753b8 elementor-widget elementor-widget-text-editor\" data-id=\"d0753b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table><thead><tr><th>Parameter<\/th><th>Details<\/th><\/tr><\/thead><tbody><tr><td>Body Construction<\/td><td>Wafer \/ Lug \/ Double Flanged<\/td><\/tr><tr><td>Pressure Rating<\/td><td>ASME Class 150 to 300 \/ PN 10 to PN 40<\/td><\/tr><tr><td>Size Range<\/td><td>DN 40 to DN 2000 (NPS 1\u00bd inch to NPS 80 inch)<\/td><\/tr><tr><td>Temperature Range<\/td><td>Up to plus 425\u00b0C (plus 797\u00b0F) with metal seat<\/td><\/tr><tr><td>Seat Material<\/td><td>EPDM \/ NBR \/ Viton\u00ae \/ Metal (Stainless Steel \/ Stellite)<\/td><\/tr><tr><td>Body Material<\/td><td>Ductile Iron \/ A216 WCB \/ CF8 \/ CF8M \/ Duplex (4A \/ 5A) \/ C95800<\/td><\/tr><tr><td>Design Standard<\/td><td>API 609<\/td><\/tr><tr><td>Face to Face<\/td><td>ASME B16.34<\/td><\/tr><tr><td>End Flange<\/td><td>ASME B16.5 \/ ASME B16.47<\/td><\/tr><tr><td>Testing Standard<\/td><td>API 598<\/td><\/tr><tr><td>Actuation<\/td><td>Lever \/ Worm Gear \/ Pneumatic \/ Electric \/ Hydraulic<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-166997632\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-166997632\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\" elementor-element elementor-element-df79496 e-con-full e-flex e-con e-child\" data-id=\"df79496\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5941142 elementor-widget elementor-widget-text-editor\" data-id=\"5941142\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Double eccentric (double offset) shaft construction as standard<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Resilient seat options: EPDM, NBR, Viton\u00ae for general and chemical service<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Metal seat option available for high-temperature and abrasive media<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Wafer, lugged and double-flanged end connections available<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">ISO 5211 top flange for direct actuator mounting<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Anti-blowout shaft design<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Wide size range \u2014 DN 40 to DN 2000 (NPS 1\u00bd&#8221; to NPS 80&#8243;)<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Actuation-ready: lever, worm gear, pneumatic, electric or hydraulic<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-166997633\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-166997633\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\" elementor-element elementor-element-21ae15d e-con-full e-flex e-con e-child\" data-id=\"21ae15d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a00235 elementor-widget elementor-widget-text-editor\" data-id=\"5a00235\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Oil &amp; gas refining and pipeline systems<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Water supply, treatment and distribution<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Power generation cooling water and fuel systems<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Chemical and petrochemical processing<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Marine and offshore systems<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">HVAC and district heating\/cooling<\/li><li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Pulp and paper industry<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\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>Double Eccentric Butterfly Valve High-Performance Flow Control. Less Wear. Longer Life. The Claval Double Eccentric Butterfly Valve \u2014 also known [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-271","page","type-page","status-publish","hentry"],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/pages\/271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/claval-control.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=271"}],"version-history":[{"count":14,"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/pages\/271\/revisions"}],"predecessor-version":[{"id":622,"href":"https:\/\/claval-control.us\/index.php?rest_route=\/wp\/v2\/pages\/271\/revisions\/622"}],"wp:attachment":[{"href":"https:\/\/claval-control.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}