{"id":16714,"date":"2022-06-23T03:24:16","date_gmt":"2022-06-23T03:24:16","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16714"},"modified":"2022-09-10T23:58:43","modified_gmt":"2022-09-10T23:58:43","slug":"six-classification-standards-of-resilient-seated-butterfly-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/six-classification-standards-of-resilient-seated-butterfly-valve.html","title":{"rendered":"Seis padr\u00f5es de classifica\u00e7\u00e3o de v\u00e1lvula borboleta de sede resiliente"},"content":{"rendered":"<p>A v\u00e1lvula borboleta de assento resiliente, como um componente usado para obter controle liga-desliga e de fluxo do sistema de dutos, tem sido amplamente utilizada em muitos campos, como petr\u00f3leo, ind\u00fastria qu\u00edmica, metalurgia e energia hidrel\u00e9trica. A placa borboleta da v\u00e1lvula borboleta com sede resiliente \u00e9 instalada na dire\u00e7\u00e3o do di\u00e2metro da tubula\u00e7\u00e3o. No canal cil\u00edndrico do corpo da v\u00e1lvula borboleta, a placa borboleta em forma de disco gira em torno do eixo com o \u00e2ngulo de rota\u00e7\u00e3o entre 0\u00b0 e 90\u00b0. Quando girada em 90\u00b0, a v\u00e1lvula estar\u00e1 totalmente aberta.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-there-are-six-classifications-of-resilient-seated-butterfly-valve\">Existem seis classifica\u00e7\u00f5es de v\u00e1lvula borboleta com sede resiliente:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Classifica\u00e7\u00e3o por material de superf\u00edcie de veda\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>V\u00e1lvula borboleta de sede resiliente: o par de veda\u00e7\u00e3o \u00e9 feito de material macio n\u00e3o met\u00e1lico.<\/li><li>O par de veda\u00e7\u00e3o \u00e9 composto de material met\u00e1lico duro e material macio n\u00e3o met\u00e1lico: v\u00e1lvula borboleta com sede de metal. O par de veda\u00e7\u00e3o \u00e9 feito de materiais met\u00e1licos duros.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Classifica\u00e7\u00e3o por forma estrutural<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Centro <a href=\"https:\/\/zecovalve.com\/pt\/products\/metal-seated-butterfly-valve.html\/\">v\u00e1lvula de borboleta<\/a><\/li><li>V\u00e1lvula de carv\u00e3o de veda\u00e7\u00e3o exc\u00eantrica \u00fanica<\/li><li>V\u00e1lvula borboleta de veda\u00e7\u00e3o exc\u00eantrica dupla<\/li><li>V\u00e1lvula de torneira de veda\u00e7\u00e3o tr\u00eas exc\u00eantrica<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Classifica\u00e7\u00e3o por forma de veda\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>V\u00e1lvula borboleta de veda\u00e7\u00e3o for\u00e7ada: v\u00e1lvula borboleta de veda\u00e7\u00e3o el\u00e1stica. A press\u00e3o espec\u00edfica de veda\u00e7\u00e3o \u00e9 produzida pela elasticidade da sede da v\u00e1lvula ou da placa da v\u00e1lvula depois que a placa da v\u00e1lvula pressiona a sede da v\u00e1lvula quando a v\u00e1lvula \u00e9 fechada.<\/li><li>V\u00e1lvula borboleta com veda\u00e7\u00e3o de torque. A press\u00e3o de veda\u00e7\u00e3o \u00e9 gerada pelo torque aplicado ao eixo da v\u00e1lvula.<\/li><li>V\u00e1lvula borboleta de veda\u00e7\u00e3o pressurizada. A press\u00e3o de veda\u00e7\u00e3o \u00e9 gerada pelo carregamento do componente de veda\u00e7\u00e3o da parte el\u00e1stica na sede da v\u00e1lvula ou na placa da v\u00e1lvula.<\/li><li>V\u00e1lvula borboleta de veda\u00e7\u00e3o autom\u00e1tica. A press\u00e3o de veda\u00e7\u00e3o \u00e9 gerada automaticamente pela press\u00e3o m\u00e9dia.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Classifica\u00e7\u00e3o por press\u00e3o de trabalho<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>V\u00e1lvula borboleta a v\u00e1cuo: a v\u00e1lvula borboleta com press\u00e3o de trabalho inferior \u00e0 press\u00e3o atmosf\u00e9rica padr\u00e3o.<\/li><li>V\u00e1lvula borboleta de baixa press\u00e3o: a v\u00e1lvula borboleta com press\u00e3o nominal PN &lt;1,6mpa.<\/li><li>V\u00e1lvula borboleta de m\u00e9dia press\u00e3o: a v\u00e1lvula borboleta com press\u00e3o nominal PN 2,5 \u2013 6,4mpa.<\/li><li>V\u00e1lvula borboleta de alta press\u00e3o: a v\u00e1lvula borboleta com press\u00e3o nominal PN 10,0 \u2013 80,0mpa.<\/li><li>V\u00e1lvula borboleta de ultra alta press\u00e3o: a v\u00e1lvula borboleta com press\u00e3o nominal PN&gt; 100mPa.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Classifica\u00e7\u00e3o por jun\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>V\u00e1lvula de borboleta de bolacha<\/li><li>V\u00e1lvula borboleta flangeada<\/li><li>V\u00e1lvula borboleta lug<\/li><li>V\u00e1lvula borboleta de soldagem<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6. Classifica\u00e7\u00e3o por temperatura operacional<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>V\u00e1lvula borboleta de alta temperatura: t &gt; 450 \u2103<\/li><li>V\u00e1lvula borboleta de m\u00e9dia temperatura: 120 \u2103<\/li><li>V\u00e1lvula borboleta de temperatura normal: -40 \u2103<\/li><li>V\u00e1lvula borboleta de baixa temperatura: -100 \u2103<\/li><li>V\u00e1lvula borboleta de temperatura ultrabaixa: t &lt; \u2013 100 \u2103<\/li><\/ul>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Etiquetas relacionadas :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">V\u00e1lvula borboleta NBR<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferen\u00e7a entre a v\u00e1lvula de gaveta e a v\u00e1lvula de borboleta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/produto\/manual-gate-valve\/\">V\u00e1lvula de gaveta de acionamento manual Fabricante<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-function-of-globe-valve-in-pipeline-system.html\/\">O que s\u00e3o v\u00e1lvulas globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/what-is-an-axial-flow-silent-check-valve.html\/\">O que \u00e9 uma v\u00e1lvula de reten\u00e7\u00e3o axial<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">O que \u00e9 uma v\u00e1lvula de gaveta?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/tag\/shanghai-pressure-reducing-valve-factory\/\">F\u00e1brica de v\u00e1lvulas redutoras de press\u00e3o de Xangai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A v\u00e1lvula borboleta de sede resiliente, como um componente usado para obter controle liga-desliga e de fluxo do sistema de tubula\u00e7\u00e3o, tem sido amplamente utilizada em muitos campos, como\u2026 <a title=\"Seis padr\u00f5es de classifica\u00e7\u00e3o de v\u00e1lvula borboleta de sede resiliente\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/six-classification-standards-of-resilient-seated-butterfly-valve.html\" aria-label=\"Mais em Seis Padr\u00f5es de Classifica\u00e7\u00e3o de V\u00e1lvula Borboleta de Sede Resiliente\">Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[2210],"tags":[2424,3657,3192,2422,2366,2421,2420,2423],"class_list":["post-16714","post","type-post","status-publish","format-standard","hentry","category-butterfly-valve","tag-center-butterfly-valve","tag-center-line-butterfly-valve","tag-china-epdm-butterfly-valve","tag-flange-butterfly-valve","tag-lug-butterfly-valve","tag-resilient-seat-butterfly-valve","tag-resilient-seated-butterfly-valve","tag-wafer-butterfly-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/pt\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":2210,"name":"Butterfly Valve","slug":"butterfly-valve","term_group":0,"term_taxonomy_id":2210,"taxonomy":"category","description":"","parent":0,"count":49,"filter":"raw","cat_ID":2210,"category_count":49,"category_description":"","cat_name":"Butterfly Valve","category_nicename":"butterfly-valve","category_parent":0}],"tag_info":[{"term_id":2424,"name":"center butterfly valve","slug":"center-butterfly-valve","term_group":0,"term_taxonomy_id":2424,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3657,"name":"Center line Butterfly Valve","slug":"center-line-butterfly-valve","term_group":0,"term_taxonomy_id":3657,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_e4c4a1-9b\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET CENTERLINE BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA resilient seated butterfly valve with superior design features and materials of construction to provide repeatable tight shutoff in severe abrasive and corrosive environments for a variety of applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Standard of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Flange Standard.:DIN2501, BS10-D, BS4504, ANSI B16.1, B16.42, JIS B2239<\/li>\r\n \t<li>Valve Tested: API598<\/li>\r\n \t<li>Face to Face: DIN3202-K1, EN558-1 20 SERIES, BS5155, MSS SP-67<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Material of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table -->\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>o<\/strong><\/td>\r\n<td><strong>Parts Name<\/strong><\/td>\r\n<td><strong>Material<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1<\/td>\r\n<td>Body<\/td>\r\n<td>C.I. \/ D.I. \/ C.S.\u00a0\/ S.S.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2<\/td>\r\n<td>Disc<\/td>\r\n<td>A536 60-40-18 \/ CF8 \/ CF8M \/ Br \/ AI-Br<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3<\/td>\r\n<td>Seat<\/td>\r\n<td>NBR \/ EPDM \/ VITON \/ PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4<\/td>\r\n<td>Stem<\/td>\r\n<td>SS410 \/ SS304 \/ SS216<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>5<\/td>\r\n<td>Pin<\/td>\r\n<td>SS304 \/ SS316<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>6<\/td>\r\n<td>Bushing<\/td>\r\n<td>PTFE \/ Bronze<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>7<\/td>\r\n<td>O-Ring<\/td>\r\n<td>NBR \/ EPDM \/ VITON<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>8<\/td>\r\n<td>Key<\/td>\r\n<td>Carbon Steel \/ SUS304 \/ SUS316<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Design Features of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Corrosion Resistance<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWith Centerline Butterfly Valves only two parts of the valve come in contact with the medium. This means that neither the body nor mechanical parts such as the shaft are exposed to the corrosive environment.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe only two parts in contact with the medium are the body lining and the disc. These are available in a selection of materials so that a suitable corrosion-resistant combination can be chosen for most any application.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Bi-directional Shutoff<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCenterline Butterfly Valves are liquid and gas-tight in both flow directions. The disc presses with uniform compression into the elastic cartridge seat over the entire circumference of the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Replaceable Seat<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe replaceable seat consists of a reinforced backup ring, on which the elastomer seat material is vulcanized. When mounting the valve between the pipe flanges this stable seat cannot be deformed or displaced. The cartridge design also prevents deformation when the valve is cycled, such as stretching and bulging of the elastomer in front of the moving disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe fixed connection between the elastomer and the backup ring allows the use of the valve in a full vacuum and high flow velocities. The slightly protruding sealing lip of the seat also serves as the flange seal.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-features-of-centerline-butterfly-valve\">Features of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Suitable for both gaseous and liquid service<\/li>\r\n \t<li>Phenolic Backed Seat for superior sealing and long term use<\/li>\r\n \t<li>Single-piece stem design assures even torque distribution<\/li>\r\n \t<li>Positive shutoff bi-directionally<\/li>\r\n \t<li>Direct mount automation<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>HVAC<\/li>\r\n \t<li>Chemical\/Petrochemical Processing<\/li>\r\n \t<li>Food and Beverage<\/li>\r\n \t<li>Power and Utilities<\/li>\r\n \t<li>Pulp and Paper<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->","parent":0,"count":12,"filter":"raw"},{"term_id":3192,"name":"China EPDM Butterfly Valve","slug":"china-epdm-butterfly-valve","term_group":0,"term_taxonomy_id":3192,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_d933f8-47\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-epdm-butterfly-valve\">What is EPDM Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nEPDM is the abbreviated name for Ethylene Propylene Diene Monomer. In general industry, one may see other abbreviations or trade names used in lieu of EPDM such as EPT, Nordel, ECD, or EPR. All of these are the same materials as EPDM. EPDM is a standard seat material offered in Bray resilient-seated butterfly valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET CHINA EPDM BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specifications of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Design Standard<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">EN 593,\u00a0MSS SP67\u00a0\u00a0\u00a0API 609\u00a0\u00a0BS5155<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Inspection &amp;\u00a0Test<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">API 598\u00a0\u00a0ISO 5208\u00a0\u00a0EN 12266<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">End Standard<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ANSI B16.1 CL. 125LB &amp;\u00a0B16.5 CL. 150LBAS 2129 Table D\u00a0&amp; E\u00a0\u00a0\u00a0BS 10 Table D\u00a0&amp; EDIN 2501 PN6, PN10 &amp;\u00a0PN16EN 1092 PN6, PN10 &amp;\u00a0PN16ISO 2531 PN6, PN10 &amp;\u00a0PN16ISO 7005 PN6, PN10 &amp;\u00a0PN16KS B\u00a01511 \/\u00a0JIS B\u00a02210 5K &amp;\u00a010KMSS SP44 CL. 150LB\u00a0\u00a0AWWAC207SABS 1123 Table 1000\/3 &amp;\u00a0Table 1600\/3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Face to Face<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ISO 5752,\u00a0EN 558,\u00a0MSS SP67, and API 609\u00a0\u00a0DIN3202<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Top Flange<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ISO 5211<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of China EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Wafer Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>Equipped with a tightly fitting seal, o ring, and a flat valve face, Wafer Butterfly valves have good control of flow, which assures unidirectional flow.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Flanged Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>These Flanged Butterfly valves with flanges on both ends. The flange ends connect with the flanges on the pipeline by bolts.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Lug-Style Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>A Lug-Style Butterfly valve has the function of reducing pressure rating.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Welded Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>Butt Weld Butterfly valves and Socket Weld Butterfly valves are two commonly used Welded Butterfly valves. These kinds of valves are of the enclosed type, helping to both on-off and regulate service.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Parts of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Parts<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Material<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Body<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Cast iron, Ductile iron, WCB<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Seat<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">EPDM, NBR, VITON, PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Disc<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Nickel ductile iron, AI bronze, Stainless Steel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stem<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel, Monel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Bushing<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\"O\" ring<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Pin<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Key<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly valves are similar to ball valves but have more advantages. They are open and close very quickly when actuated pneumatically. The disc is lighter than a ball, and the valves require less structural support than a ball valve of comparable diameter. Butterfly valves are very precise, which makes them advantageous in industrial applications. They are quite reliable and require very little maintenance.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list {\"ordered\":true} -->\r\n<ol>\r\n \t<li>Turning on\/off easily and rapidly with less force. Having less fluid resistance and can be operated frequently.<\/li>\r\n \t<li>Simple structure, small size, and short face-to-face dimension, which are suitable for large-diameter valves.<\/li>\r\n \t<li>It can be used for transmitting mud, fewer liquids are stored at the apertures of the pipe.<\/li>\r\n \t<li>Long service life. Standing the test of tens of thousands of opening\/closing operations.<\/li>\r\n \t<li>Butterfly valves have excellent regulation performance.<\/li>\r\n \t<li>Small torque. The pressure on discs at the two sides of the spindle is almost equal, causing contrary torque. Thereby, the valves can be opened with less force.<\/li>\r\n \t<li>A sealing face is generally made of rubber or plastic. So the butterfly valves can be with good sealing under low pressure.<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>EPDM Butterfly Valve - China Manufacturers, Factory, Suppliers<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe'll make each hard work to become excellent and excellent, and speed up our measures for standing from the rank of intercontinental top-grade and high-tech enterprises for Epdm Butterfly Valve, Rubber Lined Double Flange Butterfly Valve, Butterfly Valve Wafer, Electric Actuator Butterfly Valve, Lug Support Butterfly Valve. We warmly welcome friends from all walks of existence to cooperate with us. The product will supply to all over the world, such as in Europe, America, Australia, Zurich, Mexico, Greece, and Azerbaijan. We have top engineers in these industries and an efficient team in the research. What is more, we have our own archives mouths and markets in China at a low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information about our products.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":2422,"name":"flange butterfly valve","slug":"flange-butterfly-valve","term_group":0,"term_taxonomy_id":2422,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2366,"name":"lug butterfly valve","slug":"lug-butterfly-valve","term_group":0,"term_taxonomy_id":2366,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":2421,"name":"resilient seat butterfly valve","slug":"resilient-seat-butterfly-valve","term_group":0,"term_taxonomy_id":2421,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2420,"name":"resilient seated butterfly valve","slug":"resilient-seated-butterfly-valve","term_group":0,"term_taxonomy_id":2420,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2423,"name":"wafer butterfly valve","slug":"wafer-butterfly-valve","term_group":0,"term_taxonomy_id":2423,"taxonomy":"post_tag","description":"","parent":0,"count":5,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2210,"label":"Butterfly Valve"}],"post_tag":[{"value":2424,"label":"center butterfly valve"},{"value":3657,"label":"Center line Butterfly Valve"},{"value":3192,"label":"China EPDM Butterfly Valve"},{"value":2422,"label":"flange butterfly valve"},{"value":2366,"label":"lug butterfly valve"},{"value":2421,"label":"resilient seat butterfly valve"},{"value":2420,"label":"resilient seated butterfly valve"},{"value":2423,"label":"wafer butterfly valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Six Classification Standards of Resilient Seated Butterfly Valve - ZECO Valve<\/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:\/\/zecovalve.com\/pt\/six-classification-standards-of-resilient-seated-butterfly-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Six Classification Standards of Resilient Seated Butterfly Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"The resilient seat butterfly valve, as a component used to\u00a0achieve\u00a0on-off and\u00a0flow\u00a0control of pipeline system, has been widely used in many fields, such ... 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